STATE STREET GLOBAL ADVISORS TRUST COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND
401k plan membership statisitcs for STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND
| Measure | Date | Value |
|---|
| 2022 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-736,852 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-736,852 |
| Total transfer of assets to this plan | 2022-12-31 | $4,668,883 |
| Total transfer of assets from this plan | 2022-12-31 | $5,477,634 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $655,883 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $1,931,871 |
| Total income from all sources (including contributions) | 2022-12-31 | $-848,391 |
| Total loss/gain on sale of assets | 2022-12-31 | $-258,791 |
| Total of all expenses incurred | 2022-12-31 | $2,247 |
| 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 | $7,249,930 |
| Value of total assets at beginning of year | 2022-12-31 | $10,185,307 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $2,247 |
| Total interest from all sources | 2022-12-31 | $147,252 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $1,055 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $365,555 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $399,501 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $655,883 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $1,931,871 |
| Administrative expenses (other) incurred | 2022-12-31 | $1,192 |
| Value of net income/loss | 2022-12-31 | $-850,638 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $6,594,047 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $8,253,436 |
| Interest earned on other investments | 2022-12-31 | $717 |
| Income. Interest from US Government securities | 2022-12-31 | $144,699 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $356,385 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $1,729,721 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $1,729,721 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $1,836 |
| Asset value of US Government securities at end of year | 2022-12-31 | $6,527,990 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $8,056,085 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $7,397,845 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $7,656,636 |
| 2021 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 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 | $2,261,273 |
| Total transfer of assets from this plan | 2021-12-31 | $5,331,045 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $1,931,871 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $2,352,940 |
| 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 | $-206,117 |
| Total loss/gain on sale of assets | 2021-12-31 | $-63,089 |
| Total of all expenses incurred | 2021-12-31 | $2,260 |
| 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 | $10,185,307 |
| Value of total assets at beginning of year | 2021-12-31 | $13,884,525 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $2,260 |
| Total interest from all sources | 2021-12-31 | $113,953 |
| 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 | $1,026 |
| 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 | $399,501 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $441,800 |
| 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 | $1,931,871 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $2,352,940 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $1,234 |
| 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 | $-208,377 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $8,253,436 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $11,531,585 |
| Investment advisory and management fees | 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 | $111,750 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $1,795 |
| 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 | $1,729,721 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $2,114,529 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $2,114,529 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $408 |
| 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 | $8,056,085 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $11,210,637 |
| 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 | $-256,981 |
| 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 | $117,559 |
| 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 | $4,553,696 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $4,616,785 |
| 2020 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $222,350 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $222,350 |
| Total transfer of assets to this plan | 2020-12-31 | $7,199,450 |
| Total transfer of assets from this plan | 2020-12-31 | $2,351,524 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $2,352,940 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $761,331 |
| Total income from all sources (including contributions) | 2020-12-31 | $456,504 |
| Total loss/gain on sale of assets | 2020-12-31 | $87,327 |
| Total of all expenses incurred | 2020-12-31 | $2,304 |
| 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 | $13,884,525 |
| Value of total assets at beginning of year | 2020-12-31 | $6,990,790 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $2,304 |
| Total interest from all sources | 2020-12-31 | $146,827 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $1,170 |
| 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 | $446,648 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $441,800 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $275,625 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $2,352,940 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $761,331 |
| Administrative expenses (other) incurred | 2020-12-31 | $1,134 |
| Value of net income/loss | 2020-12-31 | $454,200 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $11,531,585 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $6,229,459 |
| Interest earned on other investments | 2020-12-31 | $4,655 |
| Income. Interest from US Government securities | 2020-12-31 | $136,965 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $4,248 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $2,114,529 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $551,077 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $551,077 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $959 |
| Asset value of US Government securities at end of year | 2020-12-31 | $11,210,637 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $5,568,860 |
| Asset. Corporate debt instrument preferred debt at end of year | 2020-12-31 | $117,559 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2020-12-31 | $101,737 |
| 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 | $46,843 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $7,336,768 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $7,249,441 |
| 2019 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $128,321 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $128,321 |
| Total transfer of assets to this plan | 2019-12-31 | $3,507,120 |
| Total transfer of assets from this plan | 2019-12-31 | $4,455,687 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $761,331 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $1,256,253 |
| Total income from all sources (including contributions) | 2019-12-31 | $362,269 |
| Total loss/gain on sale of assets | 2019-12-31 | $74,840 |
| Total of all expenses incurred | 2019-12-31 | $1,995 |
| 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 | $6,990,790 |
| Value of total assets at beginning of year | 2019-12-31 | $8,074,005 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $1,995 |
| Total interest from all sources | 2019-12-31 | $159,108 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $1,102 |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $446,648 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $1,053,655 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $275,625 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $419,753 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $761,331 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $1,256,253 |
| Administrative expenses (other) incurred | 2019-12-31 | $893 |
| Value of net income/loss | 2019-12-31 | $360,274 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $6,229,459 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $6,817,752 |
| Interest earned on other investments | 2019-12-31 | $17,699 |
| Income. Interest from US Government securities | 2019-12-31 | $133,085 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $6,486 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $551,077 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $918,415 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $918,415 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $1,838 |
| Asset value of US Government securities at end of year | 2019-12-31 | $5,568,860 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $5,587,375 |
| Asset. Corporate debt instrument preferred debt at end of year | 2019-12-31 | $101,737 |
| 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 | $46,843 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $94,807 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $6,076,437 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $6,001,597 |
| 2018 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-39,009 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-39,009 |
| Total transfer of assets to this plan | 2018-12-31 | $1,881,199 |
| Total transfer of assets from this plan | 2018-12-31 | $3,459,932 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $1,256,253 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $2,757,924 |
| Total income from all sources (including contributions) | 2018-12-31 | $75,793 |
| Total loss/gain on sale of assets | 2018-12-31 | $-62,218 |
| Total of all expenses incurred | 2018-12-31 | $2,266 |
| 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 | $8,074,005 |
| Value of total assets at beginning of year | 2018-12-31 | $11,080,882 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $2,266 |
| Total interest from all sources | 2018-12-31 | $177,020 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $1,327 |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $1,053,655 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $627,362 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $419,753 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $473,024 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $1,256,253 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $2,757,924 |
| Administrative expenses (other) incurred | 2018-12-31 | $939 |
| Value of net income/loss | 2018-12-31 | $73,527 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $6,817,752 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $8,322,958 |
| Interest earned on other investments | 2018-12-31 | $27,217 |
| Income. Interest from US Government securities | 2018-12-31 | $147,665 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $695 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $918,415 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $2,425,471 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $2,425,471 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $1,443 |
| Asset value of US Government securities at end of year | 2018-12-31 | $5,587,375 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $7,114,973 |
| 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 | $316,243 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $94,807 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $123,809 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $5,303,376 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $5,365,594 |
| 2017 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 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 | $-10,883 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $-10,883 |
| Total transfer of assets to this plan | 2017-12-31 | $11,196,307 |
| Total transfer of assets from this plan | 2017-12-31 | $14,101,372 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $2,757,924 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $4,952,592 |
| 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 | $224,513 |
| Total loss/gain on sale of assets | 2017-12-31 | $21,174 |
| Total of all expenses incurred | 2017-12-31 | $3,065 |
| 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 | $11,080,882 |
| Value of total assets at beginning of year | 2017-12-31 | $15,959,167 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $3,065 |
| Total interest from all sources | 2017-12-31 | $214,222 |
| 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 | $1,549 |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $627,362 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $819,694 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $473,024 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $275,991 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $2,757,924 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $4,952,592 |
| Other income not declared elsewhere | 2017-12-31 | $0 |
| Administrative expenses (other) incurred | 2017-12-31 | $1,516 |
| Value of net income/loss | 2017-12-31 | $221,448 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $8,322,958 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $11,006,575 |
| 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 | $33,015 |
| Income. Interest from US Government securities | 2017-12-31 | $166,729 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $13,047 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $2,425,471 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $4,798,060 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $4,798,060 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $1,431 |
| Asset value of US Government securities at end of year | 2017-12-31 | $7,114,973 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $9,551,758 |
| 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 |
| Asset. Corporate debt instrument preferred debt at end of year | 2017-12-31 | $316,243 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2017-12-31 | $371,119 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $123,809 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $142,545 |
| Contract administrator fees | 2017-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $8,087,107 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $8,065,933 |
| 2016 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $-127,081 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $-127,081 |
| Total transfer of assets to this plan | 2016-12-31 | $1,985,125 |
| Total transfer of assets from this plan | 2016-12-31 | $7,992,427 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $4,952,592 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $8,583,422 |
| Total income from all sources (including contributions) | 2016-12-31 | $321,367 |
| Total loss/gain on sale of assets | 2016-12-31 | $154,040 |
| Total of all expenses incurred | 2016-12-31 | $4,918 |
| 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 | $15,959,167 |
| Value of total assets at beginning of year | 2016-12-31 | $25,280,850 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $4,918 |
| Total interest from all sources | 2016-12-31 | $294,408 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $2,799 |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $819,694 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $1,040,467 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $275,991 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $1,717,207 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $4,952,592 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $8,583,422 |
| Administrative expenses (other) incurred | 2016-12-31 | $2,119 |
| Value of net income/loss | 2016-12-31 | $316,449 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $11,006,575 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $16,697,428 |
| Interest earned on other investments | 2016-12-31 | $34,046 |
| Income. Interest from US Government securities | 2016-12-31 | $244,321 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $14,756 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $4,798,060 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $7,147,718 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $7,147,718 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $1,285 |
| Asset value of US Government securities at end of year | 2016-12-31 | $9,551,758 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $14,677,069 |
| Asset. Corporate debt instrument preferred debt at end of year | 2016-12-31 | $371,119 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2016-12-31 | $509,833 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $142,545 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $188,556 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $16,326,994 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $16,172,954 |
| 2015 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-677 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-677 |
| Total transfer of assets to this plan | 2015-12-31 | $2,465,735 |
| Total transfer of assets from this plan | 2015-12-31 | $13,130,020 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $8,583,422 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $13,427,692 |
| Total income from all sources (including contributions) | 2015-12-31 | $493,598 |
| Total loss/gain on sale of assets | 2015-12-31 | $60,130 |
| Total of all expenses incurred | 2015-12-31 | $5,967 |
| 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 | $25,280,850 |
| Value of total assets at beginning of year | 2015-12-31 | $40,301,774 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $5,967 |
| Total interest from all sources | 2015-12-31 | $434,145 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $3,239 |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $1,040,467 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $1,717,207 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $1,947,041 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $8,583,422 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $13,427,692 |
| Administrative expenses (other) incurred | 2015-12-31 | $2,728 |
| Value of net income/loss | 2015-12-31 | $487,631 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $16,697,428 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $26,874,082 |
| Interest on participant loans | 2015-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2015-12-31 | $0 |
| Interest earned on other investments | 2015-12-31 | $35,917 |
| Income. Interest from US Government securities | 2015-12-31 | $379,574 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $17,477 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $7,147,718 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $12,044,870 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $12,044,870 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $1,177 |
| Asset value of US Government securities at end of year | 2015-12-31 | $14,677,069 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $25,698,224 |
| Income. Dividends from preferred stock | 2015-12-31 | $0 |
| Income. Dividends from common stock | 2015-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2015-12-31 | $509,833 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2015-12-31 | $611,639 |
| Asset. Corporate debt instrument debt (other) at end of year | 2015-12-31 | $188,556 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2015-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $16,792,110 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $16,731,980 |
| 2014 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $645,683 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $645,683 |
| Total transfer of assets to this plan | 2014-12-31 | $8,095,150 |
| Total transfer of assets from this plan | 2014-12-31 | $36,365,893 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $13,427,692 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $7,733,226 |
| Total income from all sources (including contributions) | 2014-12-31 | $1,540,294 |
| Total loss/gain on sale of assets | 2014-12-31 | $96,762 |
| Total of all expenses incurred | 2014-12-31 | $13,502 |
| 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 | $40,301,774 |
| Value of total assets at beginning of year | 2014-12-31 | $61,351,259 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $13,502 |
| Total interest from all sources | 2014-12-31 | $797,849 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $5,542 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $1,947,041 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $2,587,813 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $13,427,692 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $7,733,226 |
| Administrative expenses (other) incurred | 2014-12-31 | $7,960 |
| Value of net income/loss | 2014-12-31 | $1,526,792 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $26,874,082 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $53,618,033 |
| Interest earned on other investments | 2014-12-31 | $17,544 |
| Income. Interest from US Government securities | 2014-12-31 | $758,663 |
| Income. Interest from corporate debt instruments | 2014-12-31 | $20,451 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $12,044,870 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $5,701,235 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $5,701,235 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $1,191 |
| Asset value of US Government securities at end of year | 2014-12-31 | $25,698,224 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $52,010,162 |
| Asset. Corporate debt instrument preferred debt at end of year | 2014-12-31 | $611,639 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2014-12-31 | $1,052,049 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $37,802,358 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $37,705,596 |
| 2013 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $-1,624,124 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $-1,624,124 |
| Total transfer of assets to this plan | 2013-12-31 | $18,118,554 |
| Total transfer of assets from this plan | 2013-12-31 | $37,671,917 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $7,733,226 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $20,564,990 |
| Total income from all sources (including contributions) | 2013-12-31 | $-1,088,928 |
| Total loss/gain on sale of assets | 2013-12-31 | $-868,427 |
| Total of all expenses incurred | 2013-12-31 | $22,014 |
| 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 | $61,351,259 |
| Value of total assets at beginning of year | 2013-12-31 | $94,847,328 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $22,014 |
| Total interest from all sources | 2013-12-31 | $1,403,623 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $6,030 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $2,587,813 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $2,224,120 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $7,733,226 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $20,564,990 |
| Administrative expenses (other) incurred | 2013-12-31 | $15,984 |
| Value of net income/loss | 2013-12-31 | $-1,110,942 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $53,618,033 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $74,282,338 |
| Interest earned on other investments | 2013-12-31 | $19,848 |
| Income. Interest from US Government securities | 2013-12-31 | $1,354,120 |
| Income. Interest from corporate debt instruments | 2013-12-31 | $27,420 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $5,701,235 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $20,070,589 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $20,070,589 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $2,235 |
| Asset value of US Government securities at end of year | 2013-12-31 | $52,010,162 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $71,497,681 |
| Asset. Corporate debt instrument preferred debt at end of year | 2013-12-31 | $1,052,049 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2013-12-31 | $1,054,938 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $73,171,560 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $74,039,987 |
| 2012 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $437,898 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $437,898 |
| Total transfer of assets to this plan | 2012-12-31 | $31,407,185 |
| Total transfer of assets from this plan | 2012-12-31 | $17,114,091 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $20,564,990 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $19,256,269 |
| Total income from all sources (including contributions) | 2012-12-31 | $2,093,652 |
| Total loss/gain on sale of assets | 2012-12-31 | $-328 |
| Total of all expenses incurred | 2012-12-31 | $21,343 |
| 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 | $94,847,328 |
| Value of total assets at beginning of year | 2012-12-31 | $77,173,204 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $21,343 |
| Total interest from all sources | 2012-12-31 | $1,656,082 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $5,481 |
| Assets. Other investments not covered elsewhere at beginning of year | 2012-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $2,224,120 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $2,217,842 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $20,564,990 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $19,256,269 |
| Administrative expenses (other) incurred | 2012-12-31 | $15,862 |
| Value of net income/loss | 2012-12-31 | $2,072,309 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $74,282,338 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $57,916,935 |
| Interest earned on other investments | 2012-12-31 | $57,285 |
| Income. Interest from US Government securities | 2012-12-31 | $1,565,833 |
| Income. Interest from corporate debt instruments | 2012-12-31 | $29,216 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $20,070,589 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $18,718,611 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $18,718,611 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $3,748 |
| Asset value of US Government securities at end of year | 2012-12-31 | $71,497,681 |
| Asset value of US Government securities at beginning of year | 2012-12-31 | $54,860,585 |
| Asset. Corporate debt instrument preferred debt at end of year | 2012-12-31 | $1,054,938 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2012-12-31 | $1,376,166 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $46,194,935 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $46,195,263 |
| 2011 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $2,506,770 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $2,506,770 |
| Total transfer of assets to this plan | 2011-12-31 | $11,691,166 |
| Total transfer of assets from this plan | 2011-12-31 | $52,414,739 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $19,256,269 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $38,523,376 |
| Total income from all sources (including contributions) | 2011-12-31 | $5,896,428 |
| Total loss/gain on sale of assets | 2011-12-31 | $963,278 |
| Total of all expenses incurred | 2011-12-31 | $23,775 |
| 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 | $77,173,204 |
| Value of total assets at beginning of year | 2011-12-31 | $131,291,231 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $23,775 |
| Total interest from all sources | 2011-12-31 | $2,426,380 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $5,476 |
| Assets. Other investments not covered elsewhere at end of year | 2011-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2011-12-31 | $777,598 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $2,217,842 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $4,501,458 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $19,256,269 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $38,523,376 |
| Administrative expenses (other) incurred | 2011-12-31 | $18,299 |
| Value of net income/loss | 2011-12-31 | $5,872,653 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $57,916,935 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $92,767,855 |
| Interest earned on other investments | 2011-12-31 | $39,241 |
| Income. Interest from US Government securities | 2011-12-31 | $2,360,608 |
| Income. Interest from corporate debt instruments | 2011-12-31 | $22,566 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $0 |
| 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 | $18,718,611 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $35,029,332 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $35,029,332 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $3,965 |
| Asset value of US Government securities at end of year | 2011-12-31 | $54,860,585 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $90,417,708 |
| Asset. Corporate debt instrument preferred debt at end of year | 2011-12-31 | $1,376,166 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2011-12-31 | $565,135 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $81,297,733 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $80,334,455 |
| 2010 : STATE STREET 3-10 YEAR U.S. AGENCY INDEX SECURITIES LENDING FUND 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $8,781,520 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $8,781,520 |
| Total transfer of assets to this plan | 2010-12-31 | $18,272,375 |
| Total transfer of assets from this plan | 2010-12-31 | $182,349,132 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $38,523,376 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $110,159,952 |
| Total income from all sources (including contributions) | 2010-12-31 | $16,543,012 |
| Total loss/gain on sale of assets | 2010-12-31 | $1,935,193 |
| Total of all expenses incurred | 2010-12-31 | $53,866 |
| 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 | $131,291,231 |
| Value of total assets at beginning of year | 2010-12-31 | $350,515,418 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $53,866 |
| Total interest from all sources | 2010-12-31 | $5,826,299 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $10,689 |
| Assets. Other investments not covered elsewhere at end of year | 2010-12-31 | $777,598 |
| Assets. Other investments not covered elsewhere at beginning of year | 2010-12-31 | $1,607,952 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $4,501,458 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $23,070,557 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $38,523,376 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $110,159,952 |
| Administrative expenses (other) incurred | 2010-12-31 | $43,177 |
| Value of net income/loss | 2010-12-31 | $16,489,146 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $92,767,855 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $240,355,466 |
| Interest earned on other investments | 2010-12-31 | $111,339 |
| Income. Interest from US Government securities | 2010-12-31 | $5,664,461 |
| Income. Interest from corporate debt instruments | 2010-12-31 | $35,615 |
| 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 | $35,029,332 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $87,902,805 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $87,902,805 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $14,884 |
| Asset value of US Government securities at end of year | 2010-12-31 | $90,417,708 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $237,286,299 |
| Asset. Corporate debt instrument preferred debt at end of year | 2010-12-31 | $565,135 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2010-12-31 | $647,805 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $167,675,959 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $165,740,766 |
