STATE STREET GLOBAL ADVISORS TRUST COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A
401k plan membership statisitcs for SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A
| Measure | Date | Value |
|---|
| 2023 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $10,572,297 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $10,572,297 |
| Total transfer of assets to this plan | 2023-12-31 | $10,072,193 |
| Total transfer of assets from this plan | 2023-12-31 | $30,493,046 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $529,312 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $1,100,410 |
| Total income from all sources (including contributions) | 2023-12-31 | $738,407 |
| Total loss/gain on sale of assets | 2023-12-31 | $-12,967,745 |
| Total of all expenses incurred | 2023-12-31 | $11,264 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $0 |
| Value of total assets at end of year | 2023-12-31 | $78,870,486 |
| Value of total assets at beginning of year | 2023-12-31 | $99,135,294 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $11,264 |
| Total interest from all sources | 2023-12-31 | $3,133,855 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $1,101,859 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $1,922,474 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $529,312 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $1,100,410 |
| Administrative expenses (other) incurred | 2023-12-31 | $-3,378 |
| Value of net income/loss | 2023-12-31 | $727,143 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $78,341,174 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $98,034,884 |
| Income. Interest from US Government securities | 2023-12-31 | $3,123,741 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $156,897 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $17,298 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $17,298 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $10,114 |
| Asset value of US Government securities at end of year | 2023-12-31 | $77,611,730 |
| Asset value of US Government securities at beginning of year | 2023-12-31 | $97,195,522 |
| Contract administrator fees | 2023-12-31 | $9,367 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $30,156,458 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $43,124,203 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-01-01 | $10,572,297 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $10,572,297 |
| Total transfer of assets to this plan | 2023-01-01 | $10,072,193 |
| Total transfer of assets from this plan | 2023-01-01 | $30,493,046 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $529,312 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $1,100,410 |
| Total income from all sources (including contributions) | 2023-01-01 | $738,407 |
| Total loss/gain on sale of assets | 2023-01-01 | $-12,967,745 |
| Total of all expenses incurred | 2023-01-01 | $11,264 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-01-01 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-01-01 | $0 |
| Value of total assets at end of year | 2023-01-01 | $78,870,486 |
| Value of total assets at beginning of year | 2023-01-01 | $99,135,294 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $11,264 |
| Total interest from all sources | 2023-01-01 | $3,133,855 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-01-01 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-01-01 | $1,101,859 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $1,922,474 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-01-01 | $529,312 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-01-01 | $1,100,410 |
| Administrative expenses (other) incurred | 2023-01-01 | $-3,378 |
| Value of net income/loss | 2023-01-01 | $727,143 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $78,341,174 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $98,034,884 |
| Income. Interest from US Government securities | 2023-01-01 | $3,123,741 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-01-01 | $156,897 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-01-01 | $10,114 |
| Asset value of US Government securities at end of year | 2023-01-01 | $77,611,730 |
| Asset value of US Government securities at beginning of year | 2023-01-01 | $97,195,522 |
| Contract administrator fees | 2023-01-01 | $9,367 |
| Aggregate proceeds on sale of assets | 2023-01-01 | $30,156,458 |
| Aggregate carrying amount (costs) on sale of assets | 2023-01-01 | $43,124,203 |
| 2022 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-40,183,471 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-40,183,471 |
| Total transfer of assets to this plan | 2022-12-31 | $47,945,270 |
| Total transfer of assets from this plan | 2022-12-31 | $44,007,430 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $1,100,410 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $531,369 |
| Total income from all sources (including contributions) | 2022-12-31 | $-45,473,102 |
| Total loss/gain on sale of assets | 2022-12-31 | $-8,611,314 |
| Total of all expenses incurred | 2022-12-31 | $14,758 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $99,135,294 |
| Value of total assets at beginning of year | 2022-12-31 | $140,116,273 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $14,758 |
| Total interest from all sources | 2022-12-31 | $3,321,683 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $5,775 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $1,922,474 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $1,184,260 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $1,100,410 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $531,369 |
| Administrative expenses (other) incurred | 2022-12-31 | $8,983 |
| Value of net income/loss | 2022-12-31 | $-45,487,860 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $98,034,884 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $139,584,904 |
| Income. Interest from US Government securities | 2022-12-31 | $3,317,862 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $17,298 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $56,999 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $56,999 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $3,821 |
| Asset value of US Government securities at end of year | 2022-12-31 | $97,195,522 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $138,875,014 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $38,295,412 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $46,906,726 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-01-01 | $-40,183,471 |
| Total unrealized appreciation/depreciation of assets | 2022-01-01 | $-40,183,471 |
| Total transfer of assets to this plan | 2022-01-01 | $47,945,270 |
| Total transfer of assets from this plan | 2022-01-01 | $44,007,430 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $1,100,410 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $531,369 |
| Total income from all sources (including contributions) | 2022-01-01 | $-45,473,102 |
| Total loss/gain on sale of assets | 2022-01-01 | $-8,611,314 |
| Total of all expenses incurred | 2022-01-01 | $14,758 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-01-01 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-01-01 | $0 |
| Value of total assets at end of year | 2022-01-01 | $99,135,294 |
| Value of total assets at beginning of year | 2022-01-01 | $140,116,273 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $14,758 |
| Total interest from all sources | 2022-01-01 | $3,321,683 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-01-01 | $0 |
| Administrative expenses professional fees incurred | 2022-01-01 | $5,775 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-01-01 | $1,922,474 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-01-01 | $1,184,260 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-01-01 | $1,100,410 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-01-01 | $531,369 |
| Administrative expenses (other) incurred | 2022-01-01 | $8,983 |
| Value of net income/loss | 2022-01-01 | $-45,487,860 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $98,034,884 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $139,584,904 |
| Income. Interest from US Government securities | 2022-01-01 | $3,317,862 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-01-01 | $17,298 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-01-01 | $3,821 |
| Asset value of US Government securities at end of year | 2022-01-01 | $97,195,522 |
| Asset value of US Government securities at beginning of year | 2022-01-01 | $138,875,014 |
| Aggregate proceeds on sale of assets | 2022-01-01 | $38,295,412 |
| Aggregate carrying amount (costs) on sale of assets | 2022-01-01 | $46,906,726 |
| 2021 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 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 | $0 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $0 |
| Total transfer of assets to this plan | 2021-12-31 | $49,362,566 |
| Total transfer of assets from this plan | 2021-12-31 | $84,662,513 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $531,369 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $992,246 |
| 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 | $-9,955,010 |
| Total loss/gain on sale of assets | 2021-12-31 | $-6,702,019 |
| Total of all expenses incurred | 2021-12-31 | $18,960 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $140,116,273 |
| Value of total assets at beginning of year | 2021-12-31 | $185,851,067 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $18,960 |
| Total interest from all sources | 2021-12-31 | $3,457,667 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $0 |
| 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 | $8,500 |
| 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 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $1,184,260 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $2,132,698 |
| 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 | $531,369 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $992,246 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $10,460 |
| 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 |
| Value of net income/loss | 2021-12-31 | $-9,973,970 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $139,584,904 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $184,858,821 |
| 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 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 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 | $3,457,271 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $56,999 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $162,766 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $162,766 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $396 |
| 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 |
| Asset value of US Government securities at end of year | 2021-12-31 | $138,875,014 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $183,555,603 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $-6,710,658 |
| Income. Dividends from preferred stock | 2021-12-31 | $0 |
| Income. Dividends from common stock | 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 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $91,010,051 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $97,712,070 |
| 2020 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $17,824,955 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $17,824,955 |
| Total transfer of assets to this plan | 2020-12-31 | $50,696,941 |
| Total transfer of assets from this plan | 2020-12-31 | $122,259,050 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $992,246 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $1,848,319 |
| Total income from all sources (including contributions) | 2020-12-31 | $39,186,957 |
| Total loss/gain on sale of assets | 2020-12-31 | $16,765,419 |
| Total of all expenses incurred | 2020-12-31 | $25,346 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $185,851,067 |
| Value of total assets at beginning of year | 2020-12-31 | $219,107,638 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $25,346 |
| Total interest from all sources | 2020-12-31 | $4,596,583 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $8,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $2,132,698 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $1,559,628 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $992,246 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $1,848,319 |
| Administrative expenses (other) incurred | 2020-12-31 | $16,846 |
| Value of net income/loss | 2020-12-31 | $39,161,611 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $184,858,821 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $217,259,319 |
| Income. Interest from US Government securities | 2020-12-31 | $4,592,935 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $162,766 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $988,088 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $988,088 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $3,648 |
| Asset value of US Government securities at end of year | 2020-12-31 | $183,555,603 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $216,559,922 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $126,199,986 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $109,434,567 |
| 2019 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $20,602,817 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $20,602,817 |
| Total transfer of assets to this plan | 2019-12-31 | $25,247,654 |
| Total transfer of assets from this plan | 2019-12-31 | $96,292,223 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $1,848,319 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $1,740,664 |
| Total income from all sources (including contributions) | 2019-12-31 | $34,506,272 |
| Total loss/gain on sale of assets | 2019-12-31 | $7,296,836 |
| Total of all expenses incurred | 2019-12-31 | $28,334 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $219,107,638 |
| Value of total assets at beginning of year | 2019-12-31 | $255,566,614 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $28,334 |
| Total interest from all sources | 2019-12-31 | $6,606,619 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $10,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $1,559,628 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $3,885,303 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $1,848,319 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $1,740,664 |
| Administrative expenses (other) incurred | 2019-12-31 | $17,834 |
| Value of net income/loss | 2019-12-31 | $34,477,938 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $217,259,319 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $253,825,950 |
| Income. Interest from US Government securities | 2019-12-31 | $6,593,930 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $988,088 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $257,303 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $257,303 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $12,689 |
| Asset value of US Government securities at end of year | 2019-12-31 | $216,559,922 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $251,424,008 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $97,886,117 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $90,589,281 |
| 2018 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $6,419,221 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $6,419,221 |
| Total transfer of assets to this plan | 2018-12-31 | $233,458,906 |
| Total transfer of assets from this plan | 2018-12-31 | $53,039,894 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $1,740,664 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $918,070 |
| Total income from all sources (including contributions) | 2018-12-31 | $6,300,972 |
| Total loss/gain on sale of assets | 2018-12-31 | $-2,233,863 |
| Total of all expenses incurred | 2018-12-31 | $8,620 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $255,566,614 |
| Value of total assets at beginning of year | 2018-12-31 | $68,032,656 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $8,620 |
| Total interest from all sources | 2018-12-31 | $2,115,614 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $10,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $3,885,303 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $581,537 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $1,740,664 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $918,070 |
| Administrative expenses (other) incurred | 2018-12-31 | $-1,880 |
| Value of net income/loss | 2018-12-31 | $6,292,352 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $253,825,950 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $67,114,586 |
| Income. Interest from US Government securities | 2018-12-31 | $2,111,221 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $257,303 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $381,560 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $381,560 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $4,393 |
| Asset value of US Government securities at end of year | 2018-12-31 | $251,424,008 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $67,069,559 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $50,170,526 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $52,404,389 |
| 2017 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 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 | $2,974,800 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $2,974,800 |
| Total transfer of assets to this plan | 2017-12-31 | $34,583,453 |
| Total transfer of assets from this plan | 2017-12-31 | $44,361,147 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $918,070 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $988,221 |
| 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 | $5,564,125 |
| Total loss/gain on sale of assets | 2017-12-31 | $738,324 |
| Total of all expenses incurred | 2017-12-31 | $8,292 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $68,032,656 |
| Value of total assets at beginning of year | 2017-12-31 | $72,324,668 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $8,292 |
| Total interest from all sources | 2017-12-31 | $1,851,001 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $7,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $581,537 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $1,066,031 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $918,070 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $988,221 |
| Other income not declared elsewhere | 2017-12-31 | $0 |
| Administrative expenses (other) incurred | 2017-12-31 | $792 |
| Value of net income/loss | 2017-12-31 | $5,555,833 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $67,114,586 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $71,336,447 |
| Investment advisory and management fees | 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 | $1,848,574 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $381,560 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $63,284 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $63,284 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $2,427 |
| Asset value of US Government securities at end of year | 2017-12-31 | $67,069,559 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $71,195,353 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2017-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $0 |
| Income. Dividends from preferred stock | 2017-12-31 | $0 |
| Income. Dividends from common stock | 2017-12-31 | $0 |
| Contract administrator fees | 2017-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $36,914,515 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $36,176,191 |
| 2016 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $-3,580,165 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $-3,580,165 |
| Total transfer of assets to this plan | 2016-12-31 | $65,858,765 |
| Total transfer of assets from this plan | 2016-12-31 | $62,455,457 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $988,221 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $1,269,026 |
| Total income from all sources (including contributions) | 2016-12-31 | $36,679 |
| Total loss/gain on sale of assets | 2016-12-31 | $1,350,748 |
| Total of all expenses incurred | 2016-12-31 | $10,651 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $72,324,668 |
| Value of total assets at beginning of year | 2016-12-31 | $69,176,137 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $10,651 |
| Total interest from all sources | 2016-12-31 | $2,266,096 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $15,000 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $1,066,031 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $963,398 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $988,221 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $1,269,026 |
| Administrative expenses (other) incurred | 2016-12-31 | $-4,349 |
| Value of net income/loss | 2016-12-31 | $26,028 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $71,336,447 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $67,907,111 |
| Income. Interest from US Government securities | 2016-12-31 | $2,264,067 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $63,284 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $100,273 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $100,273 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $2,029 |
| Asset value of US Government securities at end of year | 2016-12-31 | $71,195,353 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $68,112,466 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $54,269,518 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $52,918,770 |
| 2015 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2015-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-2,464,412 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-2,464,412 |
| Total transfer of assets to this plan | 2015-12-31 | $47,503,834 |
| Total transfer of assets from this plan | 2015-12-31 | $54,320,736 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $1,269,026 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $909,832 |
| Expenses. Interest paid | 2015-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2015-12-31 | $0 |
| Total income from all sources (including contributions) | 2015-12-31 | $-1,364,073 |
| Total loss/gain on sale of assets | 2015-12-31 | $-946,421 |
| Total of all expenses incurred | 2015-12-31 | $14,631 |
| 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 | $69,176,137 |
| Value of total assets at beginning of year | 2015-12-31 | $77,012,549 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $14,631 |
| Total interest from all sources | 2015-12-31 | $2,046,760 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $17,200 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $963,398 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $1,793,025 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $1,269,026 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $909,832 |
| Administrative expenses (other) incurred | 2015-12-31 | $-2,569 |
| Value of net income/loss | 2015-12-31 | $-1,378,704 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $67,907,111 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $76,102,717 |
| Investment advisory and management fees | 2015-12-31 | $0 |
| Income. Interest from US Government securities | 2015-12-31 | $2,046,164 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $100,273 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $26,016 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $26,016 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $596 |
| Asset value of US Government securities at end of year | 2015-12-31 | $68,112,466 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $75,193,508 |
| Contract administrator fees | 2015-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $47,365,843 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $48,312,264 |
| 2014 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $9,000,639 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $9,000,639 |
| Total transfer of assets to this plan | 2014-12-31 | $64,430,533 |
| Total transfer of assets from this plan | 2014-12-31 | $54,353,847 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $909,832 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $1,321,942 |
| Total income from all sources (including contributions) | 2014-12-31 | $13,820,735 |
| Total loss/gain on sale of assets | 2014-12-31 | $2,854,872 |
| Total of all expenses incurred | 2014-12-31 | $12,663 |
| 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 | $77,012,549 |
| Value of total assets at beginning of year | 2014-12-31 | $53,539,901 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $12,663 |
| Total interest from all sources | 2014-12-31 | $1,965,224 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $17,200 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $1,793,025 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $1,569,846 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $909,832 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $1,321,942 |
| Administrative expenses (other) incurred | 2014-12-31 | $-4,537 |
| Value of net income/loss | 2014-12-31 | $13,808,072 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $76,102,717 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $52,217,959 |
| Income. Interest from US Government securities | 2014-12-31 | $1,964,708 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $26,016 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $1,454 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $1,454 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $516 |
| Asset value of US Government securities at end of year | 2014-12-31 | $75,193,508 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $51,968,601 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $45,337,733 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $42,482,861 |
| 2013 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $-7,103,338 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $-7,103,338 |
| Total transfer of assets to this plan | 2013-12-31 | $40,206,705 |
| Total transfer of assets from this plan | 2013-12-31 | $61,990,998 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $1,321,942 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $2,145,923 |
| Total income from all sources (including contributions) | 2013-12-31 | $-9,359,546 |
| Total loss/gain on sale of assets | 2013-12-31 | $-4,233,139 |
| Total of all expenses incurred | 2013-12-31 | $13,347 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $0 |
| Value of total assets at end of year | 2013-12-31 | $53,539,901 |
| Value of total assets at beginning of year | 2013-12-31 | $85,521,068 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $13,347 |
| Total interest from all sources | 2013-12-31 | $1,976,931 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $14,680 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $1,569,846 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $1,324,474 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $1,321,942 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $2,145,923 |
| Administrative expenses (other) incurred | 2013-12-31 | $-1,333 |
| Value of net income/loss | 2013-12-31 | $-9,372,893 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $52,217,959 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $83,375,145 |
| Income. Interest from US Government securities | 2013-12-31 | $1,976,388 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $1,454 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $223,108 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $223,108 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $543 |
| Asset value of US Government securities at end of year | 2013-12-31 | $51,968,601 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $83,973,486 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $59,034,556 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $63,267,695 |
| 2012 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $101,446 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $101,446 |
| Total transfer of assets to this plan | 2012-12-31 | $86,435,233 |
| Total transfer of assets from this plan | 2012-12-31 | $96,706,150 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $2,145,923 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $2,571,505 |
| Total income from all sources (including contributions) | 2012-12-31 | $2,213,966 |
| Total loss/gain on sale of assets | 2012-12-31 | $-372,233 |
| Total of all expenses incurred | 2012-12-31 | $17,658 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $0 |
| Value of total assets at end of year | 2012-12-31 | $85,521,068 |
| Value of total assets at beginning of year | 2012-12-31 | $94,021,259 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $17,658 |
| Total interest from all sources | 2012-12-31 | $2,484,753 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $20,702 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $1,324,474 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $1,811,387 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $2,145,923 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $2,571,505 |
| Administrative expenses (other) incurred | 2012-12-31 | $-3,044 |
| Value of net income/loss | 2012-12-31 | $2,196,308 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $83,375,145 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $91,449,754 |
| Income. Interest from US Government securities | 2012-12-31 | $2,483,314 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $223,108 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $440,502 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $440,502 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $1,439 |
| Asset value of US Government securities at end of year | 2012-12-31 | $83,973,486 |
| Asset value of US Government securities at beginning of year | 2012-12-31 | $91,769,370 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $83,305,510 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $83,677,743 |
| 2011 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $11,853,032 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $11,853,032 |
| Total transfer of assets to this plan | 2011-12-31 | $133,373,635 |
| Total transfer of assets from this plan | 2011-12-31 | $71,177,920 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $2,571,505 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $199,551 |
| Total income from all sources (including contributions) | 2011-12-31 | $16,759,642 |
| Total loss/gain on sale of assets | 2011-12-31 | $3,025,481 |
| Total of all expenses incurred | 2011-12-31 | $10,661 |
| 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 | $94,021,259 |
| Value of total assets at beginning of year | 2011-12-31 | $12,704,609 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $10,661 |
| Total interest from all sources | 2011-12-31 | $1,881,129 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $15,061 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $1,811,387 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $299,208 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $2,571,505 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $199,551 |
| Administrative expenses (other) incurred | 2011-12-31 | $-4,400 |
| Value of net income/loss | 2011-12-31 | $16,748,981 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $91,449,754 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $12,505,058 |
| Income. Interest from US Government securities | 2011-12-31 | $1,880,001 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $440,502 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $36,357 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $36,357 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $1,128 |
| Asset value of US Government securities at end of year | 2011-12-31 | $91,769,370 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $12,369,044 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $52,574,561 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $49,549,080 |
| 2010 : SSGA U.S. LONG TREASURY INDEX NON-LENDING SERIES FUND CLASS A 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $-616,814 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $-616,814 |
| Total transfer of assets to this plan | 2010-12-31 | $53,461,534 |
| Total transfer of assets from this plan | 2010-12-31 | $48,769,715 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $199,551 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $150,759 |
| Total income from all sources (including contributions) | 2010-12-31 | $528,614 |
| Total loss/gain on sale of assets | 2010-12-31 | $579,810 |
| Total of all expenses incurred | 2010-12-31 | $4,890 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $0 |
| Value of total assets at end of year | 2010-12-31 | $12,704,609 |
| Value of total assets at beginning of year | 2010-12-31 | $7,440,274 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $4,890 |
| Total interest from all sources | 2010-12-31 | $565,618 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $2,936 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $299,208 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $322,181 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $199,551 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $150,759 |
| Administrative expenses (other) incurred | 2010-12-31 | $1,954 |
| Value of net income/loss | 2010-12-31 | $523,724 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $12,505,058 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $7,289,515 |
| Income. Interest from US Government securities | 2010-12-31 | $565,340 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $36,357 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $11,016 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $11,016 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $278 |
| Asset value of US Government securities at end of year | 2010-12-31 | $12,369,044 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $7,107,077 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $14,308,921 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $13,729,111 |
