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Consolidated Condensed Schedule Of Investments (Repurchase Agreements) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Schedule of Investments [Line Items]    
Fair value repurchase agreements [1] $ 116,003 $ 105,700
Repurchase agreements, cost 116,985 105,329
Repurchase Agreements [Member]    
Schedule of Investments [Line Items]    
Fair value repurchase agreements $ 116,003 [2],[3] $ 105,700 [4],[5]
Investment owned as a percentage of equity 17.08% [2],[3],[6] 14.30% [4],[5],[7]
Repurchase agreements, cost $ 116,985 [2],[3] $ 105,329 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $19,030 U.S. Treasury Note, Coupon 1.38 Percent, Maturity Date 202105    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 19,363  
Securities collateralized by par value [2],[3] $ 19,030  
Coupon rate on underlying collateral [2],[3] 1.38%  
Maturity date of securities [2],[3] 2021-05  
Rate [2],[3] 0.45%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 19,363  
Repurchase Agreements [Member] | Deutsche Bank Securities Collateralized by Par Value $15,280 Sovereign Government Bond, Coupon 0.25 Percent, Maturity Date 201804 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 15,537  
Securities collateralized by par value [2],[3] $ 15,280  
Coupon rate on underlying collateral [2],[3] 0.25%  
Maturity date of securities [2],[3] 2018-04  
Rate [2],[3] (0.50%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 15,537  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $13,164 Sovereign Government Bond, Coupon 0.25 Percent, Maturity Date 202011 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 13,618  
Securities collateralized by par value [2],[3] $ 13,164  
Coupon rate on underlying collateral [2],[3] 0.25%  
Maturity date of securities [2],[3] 2020-11  
Rate [2],[3] (0.54%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 13,618  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $8,697 Sovereign Government Bond, Coupon 1.15 Percent, Maturity Date 202007 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 9,292  
Securities collateralized by par value [2],[3] $ 8,697  
Coupon rate on underlying collateral [2],[3] 1.15%  
Maturity date of securities [2],[3] 2020-07  
Rate [2],[3] (0.63%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 9,292  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $8,697 Sovereign Government Bond, Coupon 0.65 Percent, Maturity Date 202011    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 9,025  
Securities collateralized by par value [2],[3] $ 8,697  
Coupon rate on underlying collateral [2],[3] 0.65%  
Maturity date of securities [2],[3] 2020-11  
Rate [2],[3] (0.47%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 9,025  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $7,210 Sovereign Government Bond, Coupon 2.75 Percent, Maturity Date 201904    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 7,954  
Securities collateralized by par value [2],[3] $ 7,210  
Coupon rate on underlying collateral [2],[3] 2.75%  
Maturity date of securities [2],[3] 2019-04  
Rate [2],[3] (0.47%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 7,954  
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $5,000 U.S. Treasury Note, Coupon 1.25% Maturity Date 2018-10 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 5,075 [2],[3] 5,000 [4],[5]
Securities collateralized by par value $ 5,000 [2],[3] $ 5,000 [4],[5]
Coupon rate on underlying collateral 1.25% [2],[3] 1.25% [4],[5]
Maturity date of securities 2018-10 [2],[3] 2018-10 [4],[5]
Rate 0.45% [2],[3] 0.30% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 5,075 [2],[3] $ 5,000 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $4,000 U.S. Treasury Note, Coupon 1.63% Maturity Date 2020-06 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 4,140 [2],[3] 3,980 [4],[5]
Securities collateralized by par value $ 4,000 [2],[3] $ 4,000 [4],[5]
Coupon rate on underlying collateral 1.63% [2],[3] 1.63% [4],[5]
Maturity date of securities 2020-06 [2],[3] 2020-06 [4],[5]
Rate 0.45% [2],[3] 0.40% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 4,140 [2],[3] $ 3,980 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $4,000 U.S. Treasury Note, Coupon 1.50% Maturity Date 2020-05 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 4,090 [2],[3] 3,965 [4],[5]
Securities collateralized by par value $ 4,000 [2],[3] $ 4,000 [4],[5]
Coupon rate on underlying collateral 1.50% [2],[3] 1.50% [4],[5]
Maturity date of securities 2020-05 [2],[3] 2020-05 [4],[5]
Rate 0.45% [2],[3] 0.40% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 4,090 [2],[3] $ 3,965 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value 4,000 U.S. Treasury Note, Coupon 1 Point 38 Percent Maturity Date 202003 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   3,960
Securities collateralized by par value [4],[5]   $ 4,000
Coupon rate on underlying collateral [4],[5]   1.38%
Maturity date of securities [4],[5]   2020-03
Rate [4],[5]   0.40%
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 3,960
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,621 U.S. Treasury Note, Coupon 1.38 Percent, Maturity Date 202104    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 3,684  
Securities collateralized by par value [2],[3] $ 3,621  
Coupon rate on underlying collateral [2],[3] 1.38%  
Maturity date of securities [2],[3] 2021-04  
Rate [2],[3] 0.45%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 3,684  
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,400 U.S. Treasury Note, Coupon 1.63%, Maturity Date 2020-11 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 3,498  
Securities collateralized by par value [2],[3] $ 3,400  
Coupon rate on underlying collateral [2],[3] 1.63%  
Maturity date of securities [2],[3] 2020-11  
Rate [2],[3] 0.45%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 3,498  
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,200 U.S. Treasury Note, Coupon 2.25% Maturity Date 2024-11 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 3,416 [2],[3] 3,204 [4],[5]
Securities collateralized by par value $ 3,200 [2],[3] $ 3,200 [4],[5]
Coupon rate on underlying collateral 2.25% [2],[3] 2.25% [4],[5]
Maturity date of securities 2024-11 [2],[3] 2024-11 [4],[5]
Rate 0.45% [2],[3] 0.40% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 3,416 [2],[3] $ 3,204 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $2,000 U.S. Treasury Note Coupon 2.00% Maturity Date 2022-07 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 2,107 [2],[3] 2,008 [4],[5]
Securities collateralized by par value $ 2,000 [2],[3] $ 2,000 [4],[5]
Coupon rate on underlying collateral 2.00% [2],[3] 2.00% [4],[5]
Maturity date of securities 2022-07 [2],[3] 2022-07 [4],[5]
Rate 0.45% [2],[3] 0.35% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 2,107 [2],[3] $ 2,008 [4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $2,000 U.S. Treasury Note Coupon 1.25% Maturity Date 2020-01 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount 2,037 [2],[3] 1,978 [4],[5]
Securities collateralized by par value $ 2,000 [2],[3] $ 2,000 [4],[5]
Coupon rate on underlying collateral 1.25% [2],[3] 1.25% [4],[5]
Maturity date of securities 2020-01 [2],[3] 2020-01 [4],[5]
Rate 0.45% [2],[3] 0.25% [4],[5]
Investments maturity date 2016-07 [2],[3] 2016-01 [4],[5]
Fair value repurchase agreements $ 2,037 [2],[3] $ 1,977 [4],[5]
Repurchase Agreements [Member] | Barclays Capital Inc. Collateralized by Par Value $1,738 Sovereign Government Bond, Coupon 4.00 Percent, Maturity Date 201609 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 1,788  
Securities collateralized by par value [2],[3] $ 1,738  
Coupon rate on underlying collateral [2],[3] 4.00%  
Maturity date of securities [2],[3] 2016-09  
Rate [2],[3] 0.40%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 1,788  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $2,248 Exchange-Traded Corporate Debt, Coupon 4.50 Percent, Maturity Date 202204 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 1,781  
Securities collateralized by par value [2],[3] $ 2,248  
Coupon rate on underlying collateral [2],[3] 4.50%  
Maturity date of securities [2],[3] 2022-04  
Rate [2],[3] (2.25%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 1,781  
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $1,280 U.S. Treasury Note, Coupon 1.13 Percent, Maturity Date 202106 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 1,285  
Securities collateralized by par value [2],[3] $ 1,280  
Coupon rate on underlying collateral [2],[3] 1.13%  
Maturity date of securities [2],[3] 2021-06  
Rate [2],[3] 0.45%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 1,285  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,350 Exchange-Traded Corporate Debt, Coupon 3.55 Percent, Maturity Date 202203 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 1,158  
Securities collateralized by par value [2],[3] $ 1,350  
Coupon rate on underlying collateral [2],[3] 3.55%  
Maturity date of securities [2],[3] 2022-03  
Rate [2],[3] (0.40%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 1,158  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,080 Exchange-Traded Corporate Debt, Coupon 7.75 Percent, Maturity Date 202106    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 1,037  
Securities collateralized by par value [2],[3] $ 1,080  
Coupon rate on underlying collateral [2],[3] 7.75%  
Maturity date of securities [2],[3] 2021-06  
Rate [2],[3] (2.00%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 1,037  
Repurchase Agreements [Member] | Barclays Capital Inc. Collateralized by Par Value $1,049 Exchange-Traded Corporate Debt, Coupon 4.50 Percent, Maturity Date 202204    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 940  
Securities collateralized by par value [2],[3] $ 1,049  
Coupon rate on underlying collateral [2],[3] 4.50%  
Maturity date of securities [2],[3] 2022-04  
Rate [2],[3] (4.75%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 940  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $1,049 Exchange-Traded Corporate Debt, Coupon 4.50 Percent, Maturity Date 202204    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 913  
Securities collateralized by par value [2],[3] $ 1,049  
Coupon rate on underlying collateral [2],[3] 4.50%  
Maturity date of securities [2],[3] 2022-04  
Rate [2],[3] (5.38%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 913  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $820 Exchange-Traded Corporate Debt, Coupon 3.90 Percent, Maturity Date 202105    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 904  
Securities collateralized by par value [2],[3] $ 820  
Coupon rate on underlying collateral [2],[3] 3.90%  
Maturity date of securities [2],[3] 2021-05  
Rate [2],[3] 0.05%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 904  
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $572 Exchange-Traded Corporate Debt, Coupon 3.90 Percent, Maturity Date 202105    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 637  
Securities collateralized by par value [2],[3] $ 572  
Coupon rate on underlying collateral [2],[3] 3.90%  
Maturity date of securities [2],[3] 2021-05  
Rate [2],[3] 0.00%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 637  
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $540 Exchange-Traded Corporate Debt, Coupon 6.25 Percent, Maturity Date 202210 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 570  
Securities collateralized by par value [2],[3] $ 540  
Coupon rate on underlying collateral [2],[3] 6.25%  
Maturity date of securities [2],[3] 2022-10  
Rate [2],[3] (3.50%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 570  
Repurchase Agreements [Member] | Barclays Capital Inc. Collateralized by Par Value $540 Exchange-Traded Corporate Debt, Coupon 7.75 Percent, Maturity Date 202106 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 557  
Securities collateralized by par value [2],[3] $ 540  
Coupon rate on underlying collateral [2],[3] 7.75%  
Maturity date of securities [2],[3] 2021-06  
Rate [2],[3] (2.50%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 557  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $550 Exchange-Traded Corporate Debt, Coupon 6.25 Percent, Maturity Date 202210 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 542  
Securities collateralized by par value [2],[3] $ 550  
Coupon rate on underlying collateral [2],[3] 6.25%  
Maturity date of securities [2],[3] 2022-10  
Rate [2],[3] (3.25%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 542  
Repurchase Agreements [Member] | JP Morgan Securities Collateralized by Par Value $417 U.S. Treasury Note, Coupon 1.38 Percent, Maturity Date 202003 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 428  
Securities collateralized by par value [2],[3] $ 417  
Coupon rate on underlying collateral [2],[3] 1.38%  
Maturity date of securities [2],[3] 2020-03  
Rate [2],[3] 0.65%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 428  
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $360 U.S. Treasury Note Coupon 1.13 Percent, Maturity Date 202102 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 363  
Securities collateralized by par value [2],[3] $ 360  
Coupon rate on underlying collateral [2],[3] 1.13%  
Maturity date of securities [2],[3] 2021-02  
Rate [2],[3] 0.45%  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 363  
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $285 Exchange-Traded Corporate Debt, Coupon 5.13 Percent, Maturity Date 202206 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [2],[3] 264  
Securities collateralized by par value [2],[3] $ 285  
Coupon rate on underlying collateral [2],[3] 5.13%  
Maturity date of securities [2],[3] 2022-06  
Rate [2],[3] (0.25%)  
Investments maturity date [2],[3] 2016-07  
Fair value repurchase agreements [2],[3] $ 264  
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $19,570 U.S. Treasury Note, Coupon 1.63% Maturity Date 2020-11 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   19,472
Securities collateralized by par value [4],[5]   $ 19,570
Coupon rate on underlying collateral [4],[5]   1.63%
Maturity date of securities [4],[5]   2020-11
Rate [4],[5]   (0.25%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 19,472
Repurchase Agreements [Member] | Barclays Capital Inc. Collateralized by Par Value $14,941 Sovereign Government Bond, Coupon 0.25% Maturity Date 2018-04 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   15,296
Securities collateralized by par value [4],[5]   $ 14,941
Coupon rate on underlying collateral [4],[5]   0.25%
Maturity date of securities [4],[5]   2018-04
Rate [4],[5]   (0.48%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 15,295
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $15,000 U.S. Treasury Note Coupon 2 Percent Maturity Date 202502 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   14,756
Securities collateralized by par value [4],[5]   $ 15,000
Coupon rate on underlying collateral [4],[5]   2.00%
Maturity date of securities [4],[5]   2025-02
Rate [4],[5]   0.35%
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 14,756
Repurchase Agreements [Member] | Deutsche Bank Securities Collateralized By Par Value $13,200 U.S. Treasury Note Coupon 2.25% Maturity Date 2025-11 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   13,200
Securities collateralized by par value [4],[5]   $ 13,200
Coupon rate on underlying collateral [4],[5]   2.25%
Maturity date of securities [4],[5]   2025-11
Rate [4],[5]   (1.00%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 13,200
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value $8,250 U.S. Treasury Note, Coupon 1.75% Maturity Date 2020-12 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   8,240
Securities collateralized by par value [4],[5]   $ 8,250
Coupon rate on underlying collateral [4],[5]   1.75%
Maturity date of securities [4],[5]   2020-12
Rate [4],[5]   0.40%
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 8,240
Repurchase Agreements [Member] | Barclays Capital Inc. Collateralized By Par Value $7.050 Sovereign Government Bond, Coupon 2.75% Maturity Date 2019-04 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   7,905
Securities collateralized by par value [4],[5]   $ 7,050
Coupon rate on underlying collateral [4],[5]   2.75%
Maturity date of securities [4],[5]   2019-04
Rate [4],[5]   (0.48%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 7,905
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized By Par Value $1,916 Sovereign Government Bond, Coupon 4.00% Maturity Date 2016-09 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   1,985
Securities collateralized by par value [4],[5]   $ 1,916
Coupon rate on underlying collateral [4],[5]   4.00%
Maturity date of securities [4],[5]   2016-09
Rate [4],[5]   0.38%
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 1,985
Repurchase Agreements [Member] | CS First Boston Collateralized By Par Value $560 Exchange-Traded Corporate Debt Coupon 10.00% Maturity Date 2020-06 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   417
Securities collateralized by par value [4],[5]   $ 560
Coupon rate on underlying collateral [4],[5]   10.00%
Maturity date of securities [4],[5]   2020-06
Rate [4],[5]   (3.25%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 417
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized By Par Value $560 Exchange-Traded Corporate Debt Coupon 11.00% Maturity Date 2020-03 [Member]    
Schedule of Investments [Line Items]    
Current Principal/Notional Amount [4],[5]   336
Securities collateralized by par value [4],[5]   $ 560
Coupon rate on underlying collateral [4],[5]   11.00%
Maturity date of securities [4],[5]   2020-03
Rate [4],[5]   (0.75%)
Investments maturity date [4],[5]   2016-01
Fair value repurchase agreements [4],[5]   $ 336
[1] In the Company's Consolidated Statement of Assets, Liabilities, and Equity, all balances associated with repurchase agreements, reverse repurchase agreements, and financial derivatives are presented on a gross basis.
[2] In general, securities received pursuant to repurchase agreements were delivered to counterparties in short sale transactions.
[3] See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[4] In general, securities received pursuant to repurchase agreements were delivered to counterparties in short sale transactions.
[5] See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[6] Classification percentages are based on Total Equity.
[7] Classification percentages are based on Total Equity.