Consolidated Condensed Schedule Of Investments (Repurchase Agreements) (Repurchase Agreements [Member], USD $)					9 Months Ended												12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2014 Deutsche Bank Securities Collateralized By Par Value $15,657 Sovereign Government Bond Coupon 3.75% Maturity Date 2018-10 [Member]		Sep. 30, 2014 Deutsche Bank Securities Collateralized By Par Value $7,580 Sovereign Government Bond, Coupon 2.75% Maturity Date 2019-04 [Member]		Sep. 30, 2014 Barclays Capital Inc. Collateralized By Par Value $7,669 US Treasury Bond, Coupon 3.13% Maturity Date 2044-08 [Member]		Sep. 30, 2014 Barclays Capital Inc. Collateralized By Par Value, $7,500 U.S. Treasury Note Coupon 1.63% Maturity Date 2019-08 [Member]		Sep. 30, 2014 Barclays Capital Inc. Collateralized By Par Value $5,000 US Treasury Note Coupon 1.25% Maturity Date 2018-10 [Member]		Sep. 30, 2014 Deutsche Bank Securities Collateralized By Par Value $28 US Treasury Note Coupon, 1.00% Maturity Date 2017-09[Member]		Dec. 31, 2013 JP Morgan Securities Inc Collateralized by Par Value $20,000 U.S. Treasury Note Coupon 1.25% Maturity Date 2018-10 [Member]		Dec. 31, 2013 Deutsche Bank Securities Collateralized by Par Value $5,625 Sovereign Bond Coupon 3.75% Maturity Date 2018-10 [Member]		Sep. 30, 2014 North America [Member]	Dec. 31, 2013 North America [Member]	Sep. 30, 2014 Europe [Member]	Dec. 31, 2013 Europe [Member]
Schedule of Investments [Line Items]
Current Principal/Notional Amount	$ 47,040,000		$ 27,962,000		$ 18,492,000	[1],[2],[3]	$ 8,502,000	[1],[2],[3]	$ 7,602,000	[1],[2],[3]	$ 7,453,000	[1],[2],[3]	$ 4,963,000	[1],[2],[3]	$ 28,000	[1],[2],[3]	$ 19,675,000	[1],[2],[4]	$ 8,287,000	[1],[2],[4]	$ 20,046,000	$ 19,675,000	$ 26,994,000	$ 8,287,000
Securities collateralized by par value					15,657,000	[1],[2],[3]	7,580,000	[1],[2],[3]	7,669,000	[1],[2],[3]	7,500,000	[1],[2],[3]	5,000,000	[1],[2],[3]	28,000	[1],[2],[3]	20,000,000	[1],[2],[4]	7,751,000	[1],[2],[4]
U.S. treasury note, coupon					3.75%	[1],[2],[3]	2.75%	[1],[2],[3]	3.13%	[1],[2],[3]	1.63%	[1],[2],[3]	1.25%	[1],[2],[3]	1.00%	[1],[2],[3]	1.25%	[1],[2],[4]	3.75%	[1],[2],[4]
Maturity date of securities					2018-10	[1],[2],[3]	2019-04	[1],[2],[3]	2044-08	[1],[2],[3]	2019-08	[1],[2],[3]	2018-10	[1],[2],[3]	2017-09	[1],[2],[3]	2018-10	[1],[2],[4]	2018-10	[1],[2],[4]
Description					Deutsche Bank Securities Collateralized by Par Value $15,657 Sovereign Government Bond, Coupon 3.75%, Maturity Date 2018-10	[1],[2],[3]	Deutsche Bank Securities Collateralized by Par Value $7,580 Sovereign Government Bond, Coupon 2.75%, Maturity Date 2019-04	[1],[2],[3]	Barclays Capital Inc. Collateralized by Par Value $7,669 U.S. Treasury Note, Coupon 3.13%, Maturity Date 2044-08	[1],[2],[3]	Barclays Capital Inc. Collateralized by Par Value $7,500 U.S. Treasury Note, Coupon 1.63%, Maturity Date 2019-08	[1],[2],[3]	Barclays Capital Inc. Collateralized by Par Value $5,00 U.S. Treasury Note, Coupon 1.25%, Maturity Date 2018-10	[1],[2],[3]	Barclays Capital Inc. Collateralized by Par Value $28 U.S. Treasury Note, Coupon 1.00%, Maturity Date 2017-09	[1],[2],[3]	J.P. Morgan Securities Inc. Collateralized by Par Value $20,000 U.S. Treasury Note, Coupon 1.25%, Maturity Date 10/18	[1],[2],[4]	Deutsche Bank Securities Collateralized by Par Value $7,751 European Sovereign Bond, Coupon 3.75%, Maturity Date 10/18	[1],[2],[4]
Rate					(0.25%)	[1],[2],[3]	(0.15%)	[1],[2],[3]	(0.40%)	[1],[2],[3]	(3.00%)	[1],[2],[3]	(0.10%)	[1],[2],[3]	(1.15%)	[1],[2],[3]	(0.05%)	[1],[2],[4]	0.00%	[1],[2],[4]
Investments maturity date					2014-10	[1],[2],[3]	2014-10	[1],[2],[3]	2014-10	[1],[2],[3]	2014-10	[1],[2],[3]	2014-10	[1],[2],[3]	2014-10	[1],[2],[3]	2014-01	[1],[2],[4]	2014-01	[1],[2],[4]
Fair value repurchase agreements	47,039,000	[1],[2],[3]	27,962,000	[1],[2],[4]	18,492,000	[1],[2],[3]	8,502,000	[1],[2],[3]	7,602,000	[1],[2],[3]	7,453,000	[1],[2],[3]	4,962,000	[1],[2],[3]	28,000	[1],[2],[3]	19,675,000	[1],[2],[4]	8,287,000	[1],[2],[4]	20,045,000	19,675,000	26,994,000	8,287,000
Investment owned as a percentage of equity	5.79%	[1],[2],[3],[5]	4.47%	[1],[2],[4],[5]																	2.47%	3.15%	3.32%	1.32%
Repurchase agreements, cost	$ 47,192,000	[1],[2],[3]	$ 27,943,000	[1],[2],[4]																	$ 20,045,000	$ 19,675,000	$ 27,147,000	$ 8,268,000

[1] In general, securities received pursuant to repurchase agreements were delivered to counterparties in short sale transactions.

[2] See Note 2 and Note 3 in Notes to Consolidated Financial Statements.

[3] The following table details the breakout by geographical region of long investments, investments sold short, repurchase agreements, financial derivatives–assets, and financial derivatives–liabilities.Region Current Principal/Notional Value/Number of Properties/Number of Shares Cost/(Proceeds) Fair Value Percent ofEquityLong Investments: (In thousands, Expressed in U.S. Dollars) North America 3,161,385 $2,342,001 $2,393,715 294.75 %Europe 43,235 41,351 39,427 4.85 %North America (Common Stock) 13,225 7,924 7,686 0.95 %Total $2,391,276 $2,440,828 300.56 %Investments Sold Short: North America (TBAs and Government Debt) (1,121,387) $(1,178,095) $(1,178,831) (145.16)%Europe (Government Debt) (21,367) (24,110) (23,707) (2.92)%North America (Common Stock) (2,113) (20,838) (19,356) (2.38)%Total $(1,223,043) $(1,221,894) (150.46)%Repurchase Agreements: North America 20,046 $20,045 $20,045 2.47 %Europe 26,994 27,147 26,994 3.32 %Total 47,040 $47,192 $47,039 5.79 %Financial Derivatives–Assets: North America 634,538 $45,074 $56,365 6.94 %Europe (8,733) — 1 — %Total 625,805 $45,074 $56,366 6.94 %Financial Derivatives–Liabilities: North America (617,900) $(32,133) $(45,569) (5.61)%Europe (16,675) (1,817) (1,762) (0.22)%Total (634,575) $(33,950) $(47,331) (5.83)%

[4] The following table details the breakout by geographical region of long investments, investments sold short, and repurchase agreements. All financial derivatives were concentrated in North America.Region Current Principal/Notional Value/Number of Shares Cost/(Proceeds) Fair Value Percent ofEquityLong Investments: (In thousands, Expressed in U.S. Dollars) North America 2,470,650 $1,682,533 $1,724,370 275.44 %Europe 7,641 5,724 5,760 0.92 %Total 2,478,291 $1,688,257 $1,730,130 276.36 %Investments Sold Short: North America (TBAs and Government Debt) (804,888) $(833,656) $(831,564) (132.82)%Europe (Government Debt) (7,337) (7,633) (7,681) (1.23)%North America (Common Stock) (763) (6,313) (6,369) (1.02)%Total $(847,602) $(845,614) (135.07)%Repurchase Agreements: North America 19,675 $19,675 $19,675 3.15 %Europe 8,287 8,268 8,287 1.32 %Total 27,962 $27,943 $27,962 4.47 %

[5] Classification percentages are based on Total Equity.