Consolidated Condensed Schedule Of Investments (Repurchase Agreements) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2016		Dec. 31, 2015
Schedule of Investments [Line Items]
Fair value repurchase agreements	[1]	$ 165,048		$ 105,700
Repurchase agreements, cost		164,669		105,329
Repurchase Agreements [Member]
Schedule of Investments [Line Items]
Fair value repurchase agreements		$ 165,048	[2],[3]	$ 105,700	[4],[5]
Investment owned as a percentage of equity		24.83%	[2],[3],[6]	14.30%	[4],[5],[7]
Repurchase agreements, cost		$ 164,669	[2],[3]	$ 105,329	[4],[5]
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $25,900 U.S. Treasury Note, Coupon 1.50 Percent, Maturity Date 2026 08
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	25,835
Securities collateralized by par value	[2],[3]	$ 25,900
Coupon rate on underlying collateral	[2],[3]	1.50%
Maturity date of securities	[2],[3]	2026-08
Rate	[2],[3]	0.35%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 25,835
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $15,457 Sovereign Government Bond, Coupon 0.25 Percent, Maturity Date 2018 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	15,899
Securities collateralized by par value	[2],[3]	$ 15,457
Coupon rate on underlying collateral	[2],[3]	0.25%
Maturity date of securities	[2],[3]	2018-04
Rate	[2],[3]	(0.65%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 15,899
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $13,316 Sovereign Government Bond, Coupon 0.25 Percent, Maturity Date 2020 11
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	13,879
Securities collateralized by par value	[2],[3]	$ 13,316
Coupon rate on underlying collateral	[2],[3]	0.25%
Maturity date of securities	[2],[3]	2020-11
Rate	[2],[3]	(0.60%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 13,879
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $8,797 Sovereign Government Bond, Coupon 1.15 Percent, Maturity Date 2020 07
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	9,392
Securities collateralized by par value	[2],[3]	$ 8,797
Coupon rate on underlying collateral	[2],[3]	1.15%
Maturity date of securities	[2],[3]	2020-07
Rate	[2],[3]	(0.55%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 9,392
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $8,797 Sovereign Government Bond, Coupon 0.65 Percent, Maturity Date 2020 11
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	9,198
Securities collateralized by par value	[2],[3]	$ 8,797
Coupon rate on underlying collateral	[2],[3]	0.65%
Maturity date of securities	[2],[3]	2020-11
Rate	[2],[3]	(0.49%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 9,198
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $7,293 Sovereign Government Bond, Coupon 2.75 Percent, Maturity Date 2019 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	8,073
Securities collateralized by par value	[2],[3]	$ 7,293
Coupon rate on underlying collateral	[2],[3]	2.75%
Maturity date of securities	[2],[3]	2019-04
Rate	[2],[3]	(0.60%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 8,073
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $6,710 U.S. Treasury Note, Coupon 1.13 Percent, Maturity Date 2021 08
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	6,752
Securities collateralized by par value	[2],[3]	$ 6,710
Coupon rate on underlying collateral	[2],[3]	1.13%
Maturity date of securities	[2],[3]	2021-08
Rate	[2],[3]	0.30%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 6,752
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $5,000 U.S. Treasury Note, Coupon 1.25 Percent, Maturity Date 2018 10
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	5,075
Securities collateralized by par value	[2],[3]	$ 5,000
Coupon rate on underlying collateral	[2],[3]	1.25%
Maturity date of securities	[2],[3]	2018-10
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 5,075
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $4,970 Exchange-Traded Corporate Debt, Coupon 3.88 Percent, Maturity Date 2022 01
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	5,041
Securities collateralized by par value	[2],[3]	$ 4,970
Coupon rate on underlying collateral	[2],[3]	3.88%
Maturity date of securities	[2],[3]	2022-01
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 5,041
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $4,000 U.S. Treasury Note, Coupon 1.63 Percent, Maturity Date 2020 06
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	4,105
Securities collateralized by par value	[2],[3]	$ 4,000
Coupon rate on underlying collateral	[2],[3]	1.63%
Maturity date of securities	[2],[3]	2020-06
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 4,105
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $4,000 U.S. Treasury Note, Coupon 1.50 Percent, Maturity Date 2020 05
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	4,090
Securities collateralized by par value	[2],[3]	$ 4,000
Coupon rate on underlying collateral	[2],[3]	1.50%
Maturity date of securities	[2],[3]	2020-05
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 4,090
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,630 U.S. Treasury Bond, Coupon 2.25 Percent, Maturity Date 2046 08
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	3,626
Securities collateralized by par value	[2],[3]	$ 3,630
Coupon rate on underlying collateral	[2],[3]	2.25%
Maturity date of securities	[2],[3]	2046-08
Rate	[2],[3]	(0.30%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 3,626
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,400 U.S. Treasury Note Coupon 1.63 Percent, Maturity Date 2020 11
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]	0.80%
Investments maturity date	[2],[3]	2016-10
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 Percent, Maturity Date 2024 11
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	3,416
Securities collateralized by par value	[2],[3]	$ 3,200
Coupon rate on underlying collateral	[2],[3]	2.25%
Maturity date of securities	[2],[3]	2024-11
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 3,416
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $3,440 Exchange-Traded Corporate Debt, Coupon 6.25 Percent, Maturity Date 2021 09
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	3,388
Securities collateralized by par value	[2],[3]	$ 3,440
Coupon rate on underlying collateral	[2],[3]	6.25%
Maturity date of securities	[2],[3]	2021-09
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 3,388
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $2,840 Exchange-Traded Corporate Debt, Coupon 6.25 Percent, Maturity Date 2022 07
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,897
Securities collateralized by par value	[2],[3]	$ 2,840
Coupon rate on underlying collateral	[2],[3]	6.25%
Maturity date of securities	[2],[3]	2022-07
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,897
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $2,390 Exchange-Traded Corporate Debt, Coupon 5.25 Percent, Maturity Date 2022 09
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,575
Securities collateralized by par value	[2],[3]	$ 2,390
Coupon rate on underlying collateral	[2],[3]	5.25%
Maturity date of securities	[2],[3]	2022-09
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,575
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $2,220 Exchange-Traded Corporate Debt, Coupon 4.00 Percent, Maturity Date 2021 11
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,180
Securities collateralized by par value	[2],[3]	$ 2,220
Coupon rate on underlying collateral	[2],[3]	4.00%
Maturity date of securities	[2],[3]	2021-11
Rate	[2],[3]	(0.50%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,180
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $2,424 Exchange-Traded Corporate Debt, Coupon 4.50 Percent, Maturity Date 2022 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,179
Securities collateralized by par value	[2],[3]	$ 2,424
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]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,179
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $2,071 U.S. Treasury Note Coupon 1.38 Percent, Maturity Date 2021 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,107
Securities collateralized by par value	[2],[3]	$ 2,071
Coupon rate on underlying collateral	[2],[3]	1.38%
Maturity date of securities	[2],[3]	2021-04
Rate	[2],[3]	0.75%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,107
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $2,000 U.S. Treasury Note, Coupon 2.00 Percent, Maturity Date 2022 07
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,090
Securities collateralized by par value	[2],[3]	$ 2,000
Coupon rate on underlying collateral	[2],[3]	2.00%
Maturity date of securities	[2],[3]	2022-07
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,090
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $2,279 Exchange-Traded Corporate Debt, Coupon 4.50 Percent, Maturity Date 2022 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,028
Securities collateralized by par value	[2],[3]	$ 2,279
Coupon rate on underlying collateral	[2],[3]	4.50%
Maturity date of securities	[2],[3]	2022-04
Rate	[2],[3]	(4.50%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,028
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $2,000 U.S. Treasury Note, Coupon 1.25 Percent, Maturity Date 2020 01
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	2,025
Securities collateralized by par value	[2],[3]	$ 2,000
Coupon rate on underlying collateral	[2],[3]	1.25%
Maturity date of securities	[2],[3]	2020-01
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 2,025
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $1,573 Sovereign Government Bond, Coupon 2.75 Percent, Maturity Date 2019 04
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,762
Securities collateralized by par value	[2],[3]	$ 1,573
Coupon rate on underlying collateral	[2],[3]	2.75%
Maturity date of securities	[2],[3]	2019-04
Rate	[2],[3]	(0.53%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,762
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,900 Exchange-Traded Corporate Debt, Coupon 3.55 Percent, Maturity Date 2022 03
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,681
Securities collateralized by par value	[2],[3]	$ 1,900
Coupon rate on underlying collateral	[2],[3]	3.55%
Maturity date of securities	[2],[3]	2022-03
Rate	[2],[3]	(1.00%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,681
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $1,400 Exchange-Traded Corporate Debt, Coupon 6.13 Percent, Maturity Date 2022 10
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,590
Securities collateralized by par value	[2],[3]	$ 1,400
Coupon rate on underlying collateral	[2],[3]	6.13%
Maturity date of securities	[2],[3]	2022-10
Rate	[2],[3]	(0.25%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,590
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,420 Exchange-Traded Corporate Debt, Coupon 5.38 Percent, Maturity Date 2022 03
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,473
Securities collateralized by par value	[2],[3]	$ 1,420
Coupon rate on underlying collateral	[2],[3]	5.38%
Maturity date of securities	[2],[3]	2022-03
Rate	[2],[3]	(0.35%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,473
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $1,314 U.S. Treasury Note, Coupon 1.13 Percent, Maturity Date 2021 02
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,317
Securities collateralized by par value	[2],[3]	$ 1,314
Coupon rate on underlying collateral	[2],[3]	1.13%
Maturity date of securities	[2],[3]	2021-02
Rate	[2],[3]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,317
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,240 Exchange-Traded Corporate Debt, Coupon 2.40 Percent, Maturity Date 2022 12
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,295
Securities collateralized by par value	[2],[3]	$ 1,240
Coupon rate on underlying collateral	[2],[3]	2.40%
Maturity date of securities	[2],[3]	2022-12
Rate	[2],[3]	(0.10%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,295
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,100 Exchange-Traded Corporate Debt, Coupon 5.25 Percent, Maturity Date 2022 11 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,283
Securities collateralized by par value	[2],[3]	$ 1,100
Coupon rate on underlying collateral	[2],[3]	5.25%
Maturity date of securities	[2],[3]	2022-11
Rate	[2],[3]	(0.10%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,283
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,170 Exchange-Traded Corporate Debt, Coupon 6.73 Percent, Maturity Date 2022 04 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,243
Securities collateralized by par value	[2],[3]	$ 1,170
Coupon rate on underlying collateral	[2],[3]	6.73%
Maturity date of securities	[2],[3]	2022-04
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,243
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $1,200 U.S. Treasury Note, Coupon 0.75 Percent, Maturity Date 2019 08 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,199
Securities collateralized by par value	[2],[3]	$ 1,200
Coupon rate on underlying collateral	[2],[3]	0.75%
Maturity date of securities	[2],[3]	2019-08
Rate	[2],[3]	0.60%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,199
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $1,110 Exchange-Traded Corporate Debt, Coupon 3.35 Percent, Maturity Date 2024 11 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,175
Securities collateralized by par value	[2],[3]	$ 1,110
Coupon rate on underlying collateral	[2],[3]	3.35%
Maturity date of securities	[2],[3]	2024-11
Rate	[2],[3]	(0.50%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,175
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,090 Exchange-Traded Corporate Debt, Coupon 7.75 Percent, Maturity Date 2021 06 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,132
Securities collateralized by par value	[2],[3]	$ 1,090
Coupon rate on underlying collateral	[2],[3]	7.75%
Maturity date of securities	[2],[3]	2021-06
Rate	[2],[3]	(6.25%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,132
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,110 Exchange-Traded Corporate Debt, Coupon 5.50 Percent, Maturity Date 2024 10 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,110
Securities collateralized by par value	[2],[3]	$ 1,110
Coupon rate on underlying collateral	[2],[3]	5.50%
Maturity date of securities	[2],[3]	2024-10
Rate	[2],[3]	(0.13%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,110
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,100 Exchange-Traded Corporate Debt, Coupon 5.50 Percent, Maturity Date 2024 02 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,100
Securities collateralized by par value	[2],[3]	$ 1,100
Coupon rate on underlying collateral	[2],[3]	5.50%
Maturity date of securities	[2],[3]	2024-02
Rate	[2],[3]	0.00%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,100
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,080 Exchange-Traded Corporate Debt, Coupon 7.75 Percent, Maturity Date 2021 06 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	1,072
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]	(4.75%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 1,072
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $880 Exchange-Traded Corporate Debt, Coupon 6.50 Percent, Maturity Date 2022 01 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	926
Securities collateralized by par value	[2],[3]	$ 880
Coupon rate on underlying collateral	[2],[3]	6.50%
Maturity date of securities	[2],[3]	2022-01
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 926
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $860 Exchange-Traded Corporate Debt, Coupon 5.13 Percent, Maturity Date 2021 10 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	916
Securities collateralized by par value	[2],[3]	$ 860
Coupon rate on underlying collateral	[2],[3]	5.13%
Maturity date of securities	[2],[3]	2021-10
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 916
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $800 Exchange-Traded Corporate Debt, Coupon 5.38 Percent, Maturity Date 2022 08 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	850
Securities collateralized by par value	[2],[3]	$ 800
Coupon rate on underlying collateral	[2],[3]	5.38%
Maturity date of securities	[2],[3]	2022-08
Rate	[2],[3]	0.05%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 850
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $680 Exchange-Traded Corporate Debt, Coupon 6.25 Percent, Maturity Date 2022 10 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	751
Securities collateralized by par value	[2],[3]	$ 680
Coupon rate on underlying collateral	[2],[3]	6.25%
Maturity date of securities	[2],[3]	2022-10
Rate	[2],[3]	(3.00%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 751
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $610 Exchange-Traded Corporate Debt, Coupon 6.13 Percent, Maturity Date 2022 10 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	695
Securities collateralized by par value	[2],[3]	$ 610
Coupon rate on underlying collateral	[2],[3]	6.13%
Maturity date of securities	[2],[3]	2022-10
Rate	[2],[3]	(0.50%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 695
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $540 Exchange-Traded Corporate Debt, Coupon 3.35 Percent, Maturity Date 2024 11 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	587
Securities collateralized by par value	[2],[3]	$ 540
Coupon rate on underlying collateral	[2],[3]	3.35%
Maturity date of securities	[2],[3]	2024-11
Rate	[2],[3]	(0.50%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 587
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $550 Exchange-Traded Corporate Debt, Coupon 3.88 Percent, Maturity Date 2022 01 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	579
Securities collateralized by par value	[2],[3]	$ 550
Coupon rate on underlying collateral	[2],[3]	3.88%
Maturity date of securities	[2],[3]	2022-01
Rate	[2],[3]	0.00%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 579
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $545 Exchange-Traded Corporate Debt, Coupon 3.55 Percent, Maturity Date 2022 03 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	516
Securities collateralized by par value	[2],[3]	$ 545
Coupon rate on underlying collateral	[2],[3]	3.55%
Maturity date of securities	[2],[3]	2022-03
Rate	[2],[3]	(1.00%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 516
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $430 Exchange-Traded Corporate Debt, Coupon 5.38 Percent, Maturity Date 2022 03 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	445
Securities collateralized by par value	[2],[3]	$ 430
Coupon rate on underlying collateral	[2],[3]	5.38%
Maturity date of securities	[2],[3]	2022-03
Rate	[2],[3]	(0.30%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 445
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $417 U.S. Treasury Note, Coupon 1.38 Percent, Maturity Date 2020 03 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	426
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]	0.80%
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 426
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $400 Exchange-Traded Corporate Debt, Coupon 5.38 Percent, Maturity Date 2022 03 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	423
Securities collateralized by par value	[2],[3]	$ 400
Coupon rate on underlying collateral	[2],[3]	5.38%
Maturity date of securities	[2],[3]	2022-03
Rate	[2],[3]	(0.25%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 423
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $140 Exchange-Traded Corporate Debt, Coupon 6.13 Percent, Maturity Date 2023 06 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[2],[3]	154
Securities collateralized by par value	[2],[3]	$ 140
Coupon rate on underlying collateral	[2],[3]	6.13%
Maturity date of securities	[2],[3]	2023-06
Rate	[2],[3]	(0.10%)
Investments maturity date	[2],[3]	2016-10
Fair value repurchase agreements	[2],[3]	$ 154
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] | Bank of America Securities Collateralized By Par Value 5,000 U.S. Treasury Note, Coupon 1 Point 25 Percent Maturity Date 201810 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			5,000
Securities collateralized by par value	[4],[5]			$ 5,000
Coupon rate on underlying collateral	[4],[5]			1.25%
Maturity date of securities	[4],[5]			2018-10
Rate	[4],[5]			0.30%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 5,000
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $4,000 U.S. Treasury Note, Coupon 1.38 Percent, Maturity Date 2020 03
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 4,000 U.S. Treasury Note Coupon 1 Point 63 Percent Maturity Date 202006 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			3,980
Securities collateralized by par value	[4],[5]			$ 4,000
Coupon rate on underlying collateral	[4],[5]			1.63%
Maturity date of securities	[4],[5]			2020-06
Rate	[4],[5]			0.40%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 3,980
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value 4,000 U.S. Treasury Note Coupon 1 Point 50 Percent Maturity Date 202005 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			3,965
Securities collateralized by par value	[4],[5]			$ 4,000
Coupon rate on underlying collateral	[4],[5]			1.50%
Maturity date of securities	[4],[5]			2020-05
Rate	[4],[5]			0.40%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 3,965
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value 3,200 U.S. Treasury Note, Coupon 2 Point 25 Percent Maturity Date 2024-11 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			3,204
Securities collateralized by par value	[4],[5]			$ 3,200
Coupon rate on underlying collateral	[4],[5]			2.25%
Maturity date of securities	[4],[5]			2024-11
Rate	[4],[5]			0.40%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 3,204
Repurchase Agreements [Member] | Bank of America Securities Collateralized By Par Value 2,000 U.S. Treasury Note Coupon 2 Percent Maturity Date 202207 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			2,008
Securities collateralized by par value	[4],[5]			$ 2,000
Coupon rate on underlying collateral	[4],[5]			2.00%
Maturity date of securities	[4],[5]			2022-07
Rate	[4],[5]			0.35%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 2,008
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] | Bank of America Securities Collateralized By Par Value 2,000 U.S. Treasury Note Coupon 1 Point 25 Percent Maturity Date 202001 [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	[4],[5]			1,978
Securities collateralized by par value	[4],[5]			$ 2,000
Coupon rate on underlying collateral	[4],[5]			1.25%
Maturity date of securities	[4],[5]			2020-01
Rate	[4],[5]			0.25%
Investments maturity date	[4],[5]			2016-01
Fair value repurchase agreements	[4],[5]			$ 1,977
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.