RELIANCE STEEL & ALUMINUM CO. has sponsored the creation of one or more 401k plans.
Additional information about RELIANCE STEEL & ALUMINUM CO.
Submission information for form 5500 for 401k plan RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST
| Measure | Date | Value |
|---|
| 2022 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2022-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $27,594,583 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $27,594,583 |
| Total transfer of assets to this plan | 2022-12-31 | $132,480,919 |
| Total transfer of assets from this plan | 2022-12-31 | $142,562,214 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $6,598 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $15,679 |
| Expenses. Interest paid | 2022-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2022-12-31 | $0 |
| Total income from all sources (including contributions) | 2022-12-31 | $-222,347,388 |
| Total loss/gain on sale of assets | 2022-12-31 | $2,734,038 |
| Total of all expenses incurred | 2022-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2022-12-31 | $0 |
| Value of total corrective distributions | 2022-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $0 |
| Value of total assets at end of year | 2022-12-31 | $1,312,043,444 |
| Value of total assets at beginning of year | 2022-12-31 | $1,544,481,208 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $0 |
| Total income from rents | 2022-12-31 | $0 |
| Total interest from all sources | 2022-12-31 | $1,109,860 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $32,265,869 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-12-31 | $29,687,795 |
| Assets. Real estate other than employer real property at end of year | 2022-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2022-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2022-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2022-12-31 | No |
| Contributions received from participants | 2022-12-31 | $0 |
| Participant contributions at end of year | 2022-12-31 | $0 |
| Participant contributions at beginning of year | 2022-12-31 | $0 |
| Participant contributions at end of year | 2022-12-31 | $2,629 |
| Participant contributions at beginning of year | 2022-12-31 | $249 |
| Assets. Other investments not covered elsewhere at end of year | 2022-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-12-31 | $13 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2022-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2022-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $22,280 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $388,868 |
| Assets. Loans (other than to participants) at end of year | 2022-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2022-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $0 |
| Other income not declared elsewhere | 2022-12-31 | $0 |
| Administrative expenses (other) incurred | 2022-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2022-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2022-12-31 | $0 |
| Total non interest bearing cash at end of year | 2022-12-31 | $5,175 |
| Total non interest bearing cash at beginning of year | 2022-12-31 | $0 |
| Income. Non cash contributions | 2022-12-31 | $0 |
| Value of net income/loss | 2022-12-31 | $-222,347,388 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $1,312,036,846 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $1,544,465,529 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2022-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2022-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2022-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2022-12-31 | $0 |
| Investment advisory and management fees | 2022-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-12-31 | $522,521,037 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-12-31 | $667,406,146 |
| Value of interest in pooled separate accounts at end of year | 2022-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2022-12-31 | $0 |
| Interest on participant loans | 2022-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2022-12-31 | $0 |
| Interest earned on other investments | 2022-12-31 | $0 |
| Income. Interest from US Government securities | 2022-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2022-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2022-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2022-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $632,242,000 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $751,026,905 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $7,085,309 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $4,825,477 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $4,825,477 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $1,109,860 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2022-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2022-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2022-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2022-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2022-12-31 | $0 |
| Asset value of US Government securities at end of year | 2022-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-12-31 | $-159,306,147 |
| Net investment gain/loss from pooled separate accounts | 2022-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-126,745,591 |
| Net gain/loss from 103.12 investment entities | 2022-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-12-31 | No |
| Assets. Invements in employer securities at end of year | 2022-12-31 | $150,156,631 |
| Assets. Invements in employer securities at beginning of year | 2022-12-31 | $120,832,811 |
| Assets. Value of employer real property at end of year | 2022-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2022-12-31 | $0 |
| Contributions received in cash from employer | 2022-12-31 | $0 |
| Employer contributions (assets) at end of year | 2022-12-31 | $1,414 |
| Employer contributions (assets) at beginning of year | 2022-12-31 | $133 |
| Income. Dividends from preferred stock | 2022-12-31 | $0 |
| Income. Dividends from common stock | 2022-12-31 | $2,578,074 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-12-31 | $0 |
| Contract administrator fees | 2022-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-12-31 | $6,969 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-12-31 | $606 |
| Liabilities. Value of benefit claims payable at end of year | 2022-12-31 | $6,598 |
| Liabilities. Value of benefit claims payable at beginning of year | 2022-12-31 | $15,679 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2022-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2022-12-31 | $0 |
| Did the plan have assets held for investment | 2022-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2022-12-31 | $20,362,138 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $17,628,100 |
| Liabilities. Value of acquisition indebtedness at end of year | 2022-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2022-12-31 | $0 |
| 2021 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2021-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $29,172,820 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $29,172,820 |
| Total transfer of assets to this plan | 2021-12-31 | $100,319,673 |
| Total transfer of assets from this plan | 2021-12-31 | $166,035,340 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $15,679 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $494,861 |
| Expenses. Interest paid | 2021-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2021-12-31 | $0 |
| Total income from all sources (including contributions) | 2021-12-31 | $206,646,393 |
| Total loss/gain on sale of assets | 2021-12-31 | $2,846,758 |
| Total of all expenses incurred | 2021-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2021-12-31 | $0 |
| Value of total corrective distributions | 2021-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $0 |
| Value of total assets at end of year | 2021-12-31 | $1,544,481,208 |
| Value of total assets at beginning of year | 2021-12-31 | $1,404,029,664 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $0 |
| Total income from rents | 2021-12-31 | $0 |
| Total interest from all sources | 2021-12-31 | $73,167 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $67,939,992 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $65,885,060 |
| Assets. Real estate other than employer real property at end of year | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2021-12-31 | $0 |
| Administrative expenses professional fees incurred | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2021-12-31 | No |
| Contributions received from participants | 2021-12-31 | $0 |
| Participant contributions at end of year | 2021-12-31 | $0 |
| Participant contributions at beginning of year | 2021-12-31 | $0 |
| Participant contributions at end of year | 2021-12-31 | $249 |
| Participant contributions at beginning of year | 2021-12-31 | $4,645 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $13 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2021-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2021-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $388,868 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $4,753 |
| Assets. Loans (other than to participants) at end of year | 2021-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2021-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $0 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2021-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2021-12-31 | $0 |
| Total non interest bearing cash at end of year | 2021-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $0 |
| Income. Non cash contributions | 2021-12-31 | $0 |
| Value of net income/loss | 2021-12-31 | $206,646,393 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $1,544,465,529 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $1,403,534,803 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2021-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2021-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2021-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2021-12-31 | $0 |
| Investment advisory and management fees | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $667,406,146 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $1,255,446,136 |
| Value of interest in pooled separate accounts at end of year | 2021-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2021-12-31 | $0 |
| Interest on participant loans | 2021-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2021-12-31 | $0 |
| Interest earned on other investments | 2021-12-31 | $0 |
| Income. Interest from US Government securities | 2021-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2021-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $751,026,905 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $52,717,178 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $4,825,477 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $3,582,215 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $3,582,215 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $73,167 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2021-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2021-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2021-12-31 | $0 |
| Asset value of US Government securities at end of year | 2021-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $90,419,572 |
| Net investment gain/loss from pooled separate accounts | 2021-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $16,194,084 |
| Net gain/loss from 103.12 investment entities | 2021-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2021-12-31 | No |
| Assets. Invements in employer securities at end of year | 2021-12-31 | $120,832,811 |
| Assets. Invements in employer securities at beginning of year | 2021-12-31 | $92,272,405 |
| Assets. Value of employer real property at end of year | 2021-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2021-12-31 | $0 |
| Contributions received in cash from employer | 2021-12-31 | $0 |
| Employer contributions (assets) at end of year | 2021-12-31 | $133 |
| Employer contributions (assets) at beginning of year | 2021-12-31 | $2,332 |
| Income. Dividends from preferred stock | 2021-12-31 | $0 |
| Income. Dividends from common stock | 2021-12-31 | $2,054,932 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $0 |
| Contract administrator fees | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $606 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2021-12-31 | $15,679 |
| Liabilities. Value of benefit claims payable at beginning of year | 2021-12-31 | $494,861 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2021-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2021-12-31 | $0 |
| Did the plan have assets held for investment | 2021-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2021-12-31 | $16,083,396 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $13,236,638 |
| Liabilities. Value of acquisition indebtedness at end of year | 2021-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2021-12-31 | $0 |
| Accountancy firm name | 2021-12-31 | VASQUEZ & CO.., LLC |
| Accountancy firm EIN | 2021-12-31 | 330700332 |
| 2020 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2020-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $2,741,040 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $2,741,040 |
| Total transfer of assets to this plan | 2020-12-31 | $90,263,810 |
| Total transfer of assets from this plan | 2020-12-31 | $171,804,288 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $494,861 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $563,892 |
| Expenses. Interest paid | 2020-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2020-12-31 | $0 |
| Total income from all sources (including contributions) | 2020-12-31 | $207,326,415 |
| Total loss/gain on sale of assets | 2020-12-31 | $-2,520,895 |
| Total of all expenses incurred | 2020-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2020-12-31 | $0 |
| Value of total corrective distributions | 2020-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $0 |
| Value of total assets at end of year | 2020-12-31 | $1,404,029,664 |
| Value of total assets at beginning of year | 2020-12-31 | $1,278,312,758 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $0 |
| Total income from rents | 2020-12-31 | $0 |
| Total interest from all sources | 2020-12-31 | $247,382 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $66,717,500 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2020-12-31 | $64,690,892 |
| Assets. Real estate other than employer real property at end of year | 2020-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2020-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2020-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Contributions received from participants | 2020-12-31 | $0 |
| Participant contributions at end of year | 2020-12-31 | $0 |
| Participant contributions at beginning of year | 2020-12-31 | $0 |
| Participant contributions at end of year | 2020-12-31 | $4,645 |
| Participant contributions at beginning of year | 2020-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2020-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2020-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $4,753 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $38,789 |
| Assets. Loans (other than to participants) at end of year | 2020-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2020-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $360,783 |
| Other income not declared elsewhere | 2020-12-31 | $0 |
| Administrative expenses (other) incurred | 2020-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2020-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2020-12-31 | $0 |
| Total non interest bearing cash at end of year | 2020-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2020-12-31 | $0 |
| Income. Non cash contributions | 2020-12-31 | $0 |
| Value of net income/loss | 2020-12-31 | $207,326,415 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $1,403,534,803 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $1,277,748,866 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2020-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2020-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2020-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2020-12-31 | $0 |
| Investment advisory and management fees | 2020-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2020-12-31 | $1,255,446,136 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2020-12-31 | $1,139,144,112 |
| Value of interest in pooled separate accounts at end of year | 2020-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2020-12-31 | $0 |
| Interest on participant loans | 2020-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2020-12-31 | $0 |
| Interest earned on other investments | 2020-12-31 | $0 |
| Income. Interest from US Government securities | 2020-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2020-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2020-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $52,717,178 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $36,824,113 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $3,582,215 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $4,461,824 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $4,461,824 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $247,382 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2020-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2020-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2020-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2020-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2020-12-31 | $0 |
| Asset value of US Government securities at end of year | 2020-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2020-12-31 | $138,847,359 |
| Net investment gain/loss from pooled separate accounts | 2020-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $1,294,029 |
| Net gain/loss from 103.12 investment entities | 2020-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2020-12-31 | No |
| Assets. Invements in employer securities at end of year | 2020-12-31 | $92,272,405 |
| Assets. Invements in employer securities at beginning of year | 2020-12-31 | $97,843,920 |
| Assets. Value of employer real property at end of year | 2020-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2020-12-31 | $0 |
| Contributions received in cash from employer | 2020-12-31 | $0 |
| Employer contributions (assets) at end of year | 2020-12-31 | $2,332 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $0 |
| Income. Dividends from preferred stock | 2020-12-31 | $0 |
| Income. Dividends from common stock | 2020-12-31 | $2,026,608 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2020-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2020-12-31 | $0 |
| Contract administrator fees | 2020-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2020-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2020-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2020-12-31 | $494,861 |
| Liabilities. Value of benefit claims payable at beginning of year | 2020-12-31 | $203,109 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2020-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2020-12-31 | $0 |
| Did the plan have assets held for investment | 2020-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2020-12-31 | $19,582,745 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $22,103,640 |
| Liabilities. Value of acquisition indebtedness at end of year | 2020-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2020-12-31 | $0 |
| 2019 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2019-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $38,199,914 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $38,199,914 |
| Total transfer of assets to this plan | 2019-12-31 | $106,972,192 |
| Total transfer of assets from this plan | 2019-12-31 | $118,055,560 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $563,892 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $5,863 |
| Expenses. Interest paid | 2019-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2019-12-31 | $0 |
| Total income from all sources (including contributions) | 2019-12-31 | $259,692,626 |
| Total loss/gain on sale of assets | 2019-12-31 | $5,310,620 |
| Total of all expenses incurred | 2019-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2019-12-31 | $0 |
| Value of total corrective distributions | 2019-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $0 |
| Value of total assets at end of year | 2019-12-31 | $1,278,312,758 |
| Value of total assets at beginning of year | 2019-12-31 | $1,029,145,471 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $0 |
| Total income from rents | 2019-12-31 | $0 |
| Total interest from all sources | 2019-12-31 | $1,205,261 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $64,093,500 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2019-12-31 | $62,181,113 |
| Assets. Real estate other than employer real property at end of year | 2019-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2019-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2019-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Contributions received from participants | 2019-12-31 | $0 |
| Participant contributions at end of year | 2019-12-31 | $0 |
| Participant contributions at beginning of year | 2019-12-31 | $0 |
| Participant contributions at end of year | 2019-12-31 | $0 |
| Participant contributions at beginning of year | 2019-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2019-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2019-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $38,789 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $289,645 |
| Assets. Loans (other than to participants) at end of year | 2019-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2019-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $360,783 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $5,863 |
| Other income not declared elsewhere | 2019-12-31 | $0 |
| Administrative expenses (other) incurred | 2019-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2019-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2019-12-31 | $0 |
| Total non interest bearing cash at end of year | 2019-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $0 |
| Income. Non cash contributions | 2019-12-31 | $0 |
| Value of net income/loss | 2019-12-31 | $259,692,626 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $1,277,748,866 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $1,029,139,608 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2019-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2019-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2019-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2019-12-31 | $0 |
| Investment advisory and management fees | 2019-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2019-12-31 | $1,139,144,112 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2019-12-31 | $922,013,480 |
| Value of interest in pooled separate accounts at end of year | 2019-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2019-12-31 | $0 |
| Interest on participant loans | 2019-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2019-12-31 | $0 |
| Interest earned on other investments | 2019-12-31 | $0 |
| Income. Interest from US Government securities | 2019-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2019-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2019-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $36,824,113 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $35,556,839 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $4,461,824 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $2,881,956 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $2,881,956 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $1,205,261 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2019-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2019-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2019-12-31 | $0 |
| Asset value of US Government securities at end of year | 2019-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2019-12-31 | $150,028,167 |
| Net investment gain/loss from pooled separate accounts | 2019-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $855,164 |
| Net gain/loss from 103.12 investment entities | 2019-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2019-12-31 | No |
| Assets. Invements in employer securities at end of year | 2019-12-31 | $97,843,920 |
| Assets. Invements in employer securities at beginning of year | 2019-12-31 | $68,403,551 |
| Assets. Value of employer real property at end of year | 2019-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2019-12-31 | $0 |
| Contributions received in cash from employer | 2019-12-31 | $0 |
| Employer contributions (assets) at end of year | 2019-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $0 |
| Income. Dividends from preferred stock | 2019-12-31 | $0 |
| Income. Dividends from common stock | 2019-12-31 | $1,912,387 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2019-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $0 |
| Contract administrator fees | 2019-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2019-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2019-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2019-12-31 | $203,109 |
| Liabilities. Value of benefit claims payable at beginning of year | 2019-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2019-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2019-12-31 | $0 |
| Did the plan have assets held for investment | 2019-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2019-12-31 | $20,907,816 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $15,597,196 |
| Liabilities. Value of acquisition indebtedness at end of year | 2019-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2019-12-31 | $0 |
| 2018 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2018-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-13,931,282 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-13,931,282 |
| Total transfer of assets to this plan | 2018-12-31 | $108,179,321 |
| Total transfer of assets from this plan | 2018-12-31 | $104,308,524 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $5,863 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $56,146 |
| Expenses. Interest paid | 2018-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2018-12-31 | $0 |
| Total income from all sources (including contributions) | 2018-12-31 | $-69,911,972 |
| Total loss/gain on sale of assets | 2018-12-31 | $533,788 |
| Total of all expenses incurred | 2018-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2018-12-31 | $0 |
| Value of total corrective distributions | 2018-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $0 |
| Value of total assets at end of year | 2018-12-31 | $1,029,145,471 |
| Value of total assets at beginning of year | 2018-12-31 | $1,095,236,929 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $0 |
| Total income from rents | 2018-12-31 | $0 |
| Total interest from all sources | 2018-12-31 | $912,701 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $70,780,723 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2018-12-31 | $68,931,595 |
| Assets. Real estate other than employer real property at end of year | 2018-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2018-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2018-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Contributions received from participants | 2018-12-31 | $0 |
| Participant contributions at end of year | 2018-12-31 | $0 |
| Participant contributions at beginning of year | 2018-12-31 | $0 |
| Participant contributions at end of year | 2018-12-31 | $0 |
| Participant contributions at beginning of year | 2018-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2018-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2018-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $289,645 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $20,315 |
| Assets. Loans (other than to participants) at end of year | 2018-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2018-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $5,863 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $56,146 |
| Other income not declared elsewhere | 2018-12-31 | $0 |
| Administrative expenses (other) incurred | 2018-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2018-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2018-12-31 | $0 |
| Total non interest bearing cash at end of year | 2018-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2018-12-31 | $0 |
| Income. Non cash contributions | 2018-12-31 | $0 |
| Value of net income/loss | 2018-12-31 | $-69,911,972 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $1,029,139,608 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $1,095,180,783 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2018-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2018-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2018-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2018-12-31 | $0 |
| Investment advisory and management fees | 2018-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2018-12-31 | $922,013,480 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2018-12-31 | $980,404,250 |
| Value of interest in pooled separate accounts at end of year | 2018-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2018-12-31 | $0 |
| Interest on participant loans | 2018-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2018-12-31 | $0 |
| Interest earned on other investments | 2018-12-31 | $0 |
| Income. Interest from US Government securities | 2018-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2018-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2018-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $35,556,839 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $30,555,096 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $2,881,956 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $3,403,796 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $3,403,796 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $912,701 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2018-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2018-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2018-12-31 | $0 |
| Asset value of US Government securities at end of year | 2018-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2018-12-31 | $-127,929,895 |
| Net investment gain/loss from pooled separate accounts | 2018-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $-278,007 |
| Net gain/loss from 103.12 investment entities | 2018-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2018-12-31 | No |
| Assets. Invements in employer securities at end of year | 2018-12-31 | $68,403,551 |
| Assets. Invements in employer securities at beginning of year | 2018-12-31 | $80,853,472 |
| Assets. Value of employer real property at end of year | 2018-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2018-12-31 | $0 |
| Contributions received in cash from employer | 2018-12-31 | $0 |
| Employer contributions (assets) at end of year | 2018-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $0 |
| Income. Dividends from preferred stock | 2018-12-31 | $0 |
| Income. Dividends from common stock | 2018-12-31 | $1,849,128 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $0 |
| Contract administrator fees | 2018-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2018-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2018-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2018-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2018-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2018-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2018-12-31 | $0 |
| Did the plan have assets held for investment | 2018-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2018-12-31 | $11,506,249 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $10,972,461 |
| Liabilities. Value of acquisition indebtedness at end of year | 2018-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2018-12-31 | $0 |
| 2017 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2017-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $6,104,095 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $6,104,095 |
| Total transfer of assets to this plan | 2017-12-31 | $83,775,238 |
| Total transfer of assets from this plan | 2017-12-31 | $96,853,301 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $56,146 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $266,345 |
| Expenses. Interest paid | 2017-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2017-12-31 | $0 |
| Total income from all sources (including contributions) | 2017-12-31 | $157,676,556 |
| Total loss/gain on sale of assets | 2017-12-31 | $-123,043 |
| Total of all expenses incurred | 2017-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2017-12-31 | $0 |
| Value of total corrective distributions | 2017-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $0 |
| Value of total assets at end of year | 2017-12-31 | $1,095,236,929 |
| Value of total assets at beginning of year | 2017-12-31 | $950,848,635 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $0 |
| Total income from rents | 2017-12-31 | $0 |
| Total interest from all sources | 2017-12-31 | $375,814 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $61,825,821 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2017-12-31 | $60,068,774 |
| Assets. Real estate other than employer real property at end of year | 2017-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2017-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2017-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Contributions received from participants | 2017-12-31 | $0 |
| Participant contributions at end of year | 2017-12-31 | $0 |
| Participant contributions at beginning of year | 2017-12-31 | $0 |
| Participant contributions at end of year | 2017-12-31 | $0 |
| Participant contributions at beginning of year | 2017-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2017-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2017-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $20,315 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $350,088 |
| Assets. Loans (other than to participants) at end of year | 2017-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2017-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $56,146 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $266,345 |
| Other income not declared elsewhere | 2017-12-31 | $0 |
| Administrative expenses (other) incurred | 2017-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2017-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2017-12-31 | $0 |
| Total non interest bearing cash at end of year | 2017-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2017-12-31 | $0 |
| Income. Non cash contributions | 2017-12-31 | $0 |
| Value of net income/loss | 2017-12-31 | $157,676,556 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $1,095,180,783 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $950,582,290 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2017-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2017-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2017-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2017-12-31 | $0 |
| Investment advisory and management fees | 2017-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2017-12-31 | $980,404,250 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2017-12-31 | $838,371,887 |
| Value of interest in pooled separate accounts at end of year | 2017-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2017-12-31 | $0 |
| Interest on participant loans | 2017-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2017-12-31 | $0 |
| Interest earned on other investments | 2017-12-31 | $0 |
| Income. Interest from US Government securities | 2017-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2017-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2017-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $30,555,096 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $31,361,232 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $3,403,796 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $3,433,777 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $3,433,777 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $375,814 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2017-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2017-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2017-12-31 | $0 |
| Asset value of US Government securities at end of year | 2017-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2017-12-31 | $89,658,140 |
| Net investment gain/loss from pooled separate accounts | 2017-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $-164,271 |
| Net gain/loss from 103.12 investment entities | 2017-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2017-12-31 | No |
| Assets. Invements in employer securities at end of year | 2017-12-31 | $80,853,472 |
| Assets. Invements in employer securities at beginning of year | 2017-12-31 | $77,331,651 |
| Assets. Value of employer real property at end of year | 2017-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2017-12-31 | $0 |
| Contributions received in cash from employer | 2017-12-31 | $0 |
| Employer contributions (assets) at end of year | 2017-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $0 |
| Income. Dividends from preferred stock | 2017-12-31 | $0 |
| Income. Dividends from common stock | 2017-12-31 | $1,757,047 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $0 |
| Contract administrator fees | 2017-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2017-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2017-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2017-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2017-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2017-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2017-12-31 | $0 |
| Did the plan have assets held for investment | 2017-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2017-12-31 | $11,610,339 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $11,733,382 |
| Liabilities. Value of acquisition indebtedness at end of year | 2017-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2017-12-31 | $0 |
| 2016 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2016-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $20,287,130 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $20,287,130 |
| Total transfer of assets to this plan | 2016-12-31 | $109,267,038 |
| Total transfer of assets from this plan | 2016-12-31 | $102,681,818 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $266,345 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $13,514 |
| Expenses. Interest paid | 2016-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2016-12-31 | $0 |
| Total income from all sources (including contributions) | 2016-12-31 | $82,167,323 |
| Total loss/gain on sale of assets | 2016-12-31 | $2,950,471 |
| Total of all expenses incurred | 2016-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $0 |
| Expenses. Certain deemed distributions of participant loans | 2016-12-31 | $0 |
| Value of total corrective distributions | 2016-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $0 |
| Value of total assets at end of year | 2016-12-31 | $950,848,635 |
| Value of total assets at beginning of year | 2016-12-31 | $861,843,261 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $0 |
| Total income from rents | 2016-12-31 | $0 |
| Total interest from all sources | 2016-12-31 | $39,355 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $38,476,654 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2016-12-31 | $36,778,941 |
| Assets. Real estate other than employer real property at end of year | 2016-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2016-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2016-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Contributions received from participants | 2016-12-31 | $0 |
| Participant contributions at end of year | 2016-12-31 | $0 |
| Participant contributions at beginning of year | 2016-12-31 | $0 |
| Participant contributions at end of year | 2016-12-31 | $0 |
| Participant contributions at beginning of year | 2016-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2016-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2016-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $350,088 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $21,822 |
| Assets. Loans (other than to participants) at end of year | 2016-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2016-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $266,345 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $13,514 |
| Other income not declared elsewhere | 2016-12-31 | $0 |
| Administrative expenses (other) incurred | 2016-12-31 | $0 |
| Liabilities. Value of operating payables at end of year | 2016-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2016-12-31 | $0 |
| Total non interest bearing cash at end of year | 2016-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $0 |
| Income. Non cash contributions | 2016-12-31 | $0 |
| Value of net income/loss | 2016-12-31 | $82,167,323 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $950,582,290 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $861,829,747 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2016-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2016-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2016-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2016-12-31 | $0 |
| Investment advisory and management fees | 2016-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2016-12-31 | $838,371,887 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2016-12-31 | $770,209,839 |
| Value of interest in pooled separate accounts at end of year | 2016-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2016-12-31 | $0 |
| Interest on participant loans | 2016-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2016-12-31 | $0 |
| Interest earned on other investments | 2016-12-31 | $0 |
| Income. Interest from US Government securities | 2016-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2016-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2016-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $31,361,232 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $23,088,036 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $3,433,777 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $2,676,709 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $2,676,709 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $39,355 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2016-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2016-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2016-12-31 | $0 |
| Asset value of US Government securities at end of year | 2016-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2016-12-31 | $20,493,327 |
| Net investment gain/loss from pooled separate accounts | 2016-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $-79,614 |
| Net gain/loss from 103.12 investment entities | 2016-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2016-12-31 | No |
| Assets. Invements in employer securities at end of year | 2016-12-31 | $77,331,651 |
| Assets. Invements in employer securities at beginning of year | 2016-12-31 | $65,846,855 |
| Assets. Value of employer real property at end of year | 2016-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2016-12-31 | $0 |
| Contributions received in cash from employer | 2016-12-31 | $0 |
| Employer contributions (assets) at end of year | 2016-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $0 |
| Income. Dividends from preferred stock | 2016-12-31 | $0 |
| Income. Dividends from common stock | 2016-12-31 | $1,697,713 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $0 |
| Contract administrator fees | 2016-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2016-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2016-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2016-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2016-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2016-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2016-12-31 | $0 |
| Did the plan have assets held for investment | 2016-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2016-12-31 | $15,592,359 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $12,641,888 |
| Liabilities. Value of acquisition indebtedness at end of year | 2016-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2016-12-31 | $0 |
| 2015 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-3,441,721 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-3,441,721 |
| Total transfer of assets to this plan | 2015-12-31 | $79,309,610 |
| Total transfer of assets from this plan | 2015-12-31 | $87,563,528 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $13,514 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $21,534 |
| Total income from all sources (including contributions) | 2015-12-31 | $-4,473,936 |
| Total loss/gain on sale of assets | 2015-12-31 | $-16,821 |
| Total of all expenses incurred | 2015-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $0 |
| Value of total assets at end of year | 2015-12-31 | $861,843,261 |
| Value of total assets at beginning of year | 2015-12-31 | $874,579,135 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $0 |
| Total interest from all sources | 2015-12-31 | $14,966 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $49,200,579 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $47,338,969 |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $21,822 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $225,304 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $13,514 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $21,534 |
| Value of net income/loss | 2015-12-31 | $-4,473,936 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $861,829,747 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $874,557,601 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2015-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2015-12-31 | No |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2015-12-31 | $770,209,839 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2015-12-31 | $777,018,964 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $23,088,036 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $20,144,631 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $2,676,709 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $3,026,087 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $3,026,087 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $14,966 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2015-12-31 | $-50,093,097 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $-137,842 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2015-12-31 | No |
| Assets. Invements in employer securities at end of year | 2015-12-31 | $65,846,855 |
| Assets. Invements in employer securities at beginning of year | 2015-12-31 | $74,164,149 |
| Income. Dividends from common stock | 2015-12-31 | $1,861,610 |
| Did the plan have assets held for investment | 2015-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2015-12-31 | $12,165,227 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $12,182,048 |
| 2014 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $-16,025,986 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $-16,025,986 |
| Total transfer of assets to this plan | 2014-12-31 | $163,871,445 |
| Total transfer of assets from this plan | 2014-12-31 | $69,332,720 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $21,534 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $1,554 |
| Total income from all sources (including contributions) | 2014-12-31 | $21,071,442 |
| Total loss/gain on sale of assets | 2014-12-31 | $-495,320 |
| Total of all expenses incurred | 2014-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $0 |
| Value of total assets at end of year | 2014-12-31 | $874,579,135 |
| Value of total assets at beginning of year | 2014-12-31 | $758,948,988 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $0 |
| Total interest from all sources | 2014-12-31 | $15,197 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $57,781,081 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2014-12-31 | $56,160,576 |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $225,304 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $10,595 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $21,534 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $1,554 |
| Value of net income/loss | 2014-12-31 | $21,071,442 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $874,557,601 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $758,947,434 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2014-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2014-12-31 | No |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2014-12-31 | $777,018,964 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2014-12-31 | $595,291,566 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $20,144,631 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $20,683,976 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $3,026,087 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $57,196,684 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $57,196,684 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $15,197 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2014-12-31 | $-20,186,203 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $-17,327 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2014-12-31 | No |
| Assets. Invements in employer securities at end of year | 2014-12-31 | $74,164,149 |
| Assets. Invements in employer securities at beginning of year | 2014-12-31 | $85,766,167 |
| Income. Dividends from common stock | 2014-12-31 | $1,620,505 |
| Did the plan have assets held for investment | 2014-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2014-12-31 | $6,881,836 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $7,377,156 |
| 2011 : RELIANCE STEEL & ALUMINUM CO. MASTER 401(K) PLAN MASTER TRUST 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $-1,330,263 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $-1,330,263 |
| Total transfer of assets to this plan | 2011-12-31 | $51,200,796 |
| Total transfer of assets from this plan | 2011-12-31 | $44,279,026 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $235,409 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $26,249 |
| Total income from all sources (including contributions) | 2011-12-31 | $-10,118,123 |
| Total loss/gain on sale of assets | 2011-12-31 | $-1,117,977 |
| Total of all expenses incurred | 2011-12-31 | $0 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $0 |
| Value of total assets at end of year | 2011-12-31 | $542,263,272 |
| Value of total assets at beginning of year | 2011-12-31 | $545,250,465 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $0 |
| Total interest from all sources | 2011-12-31 | $16,108 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $16,621,872 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2011-12-31 | $15,906,977 |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $632,630 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $8,090 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $235,409 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $26,249 |
| Value of net income/loss | 2011-12-31 | $-10,118,123 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $542,027,863 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $545,224,216 |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2011-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2011-12-31 | No |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2011-12-31 | $405,551,164 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2011-12-31 | $410,645,899 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $17,238,293 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $12,566,164 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $48,152,897 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $44,009,401 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $44,009,401 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $16,108 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2011-12-31 | $-24,825,931 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $518,068 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2011-12-31 | No |
| Assets. Invements in employer securities at end of year | 2011-12-31 | $70,688,288 |
| Assets. Invements in employer securities at beginning of year | 2011-12-31 | $78,020,911 |
| Income. Dividends from common stock | 2011-12-31 | $714,895 |
| Did the plan have assets held for investment | 2011-12-31 | Yes |
| Aggregate proceeds on sale of assets | 2011-12-31 | $18,864,171 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $19,982,148 |
