Offsetting Assets and Liabilities (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
Offsetting of Assets and Liabilities [Line Items]
Financial derivatives–assets, at fair value-	$ 57,560,000	[1]	$ 59,664,000	[1]
Fair value repurchase agreements	29,875,000	[1]	27,962,000	[1]
Financial derivatives–liabilities, at fair value-	(29,504,000)	[1]	(44,791,000)	[1]
Reverse Repurchase Agreements	(1,175,907,000)	[1]	(1,236,166,000)	[1]
Derivative Liability Instruments available for offset	(14,071,000)		(24,162,000)
Reverse Repurchase Agreements Available for Offset	(29,875,000)		(27,962,000)
Derivative Asset Instruments available for offset	14,071,000		24,162,000
Repurchase Agreements Available for Offset	29,875,000		27,962,000
Repurchase Agreements and Related Collateral Net	0		0
Reverse Repurchase Agreements and Related Collateral Net	0		0
Securities Collateral realting to Repurchase and Reverse Repurchase Agreements	1,380,000,000		1,480,000,000
Financial Derivatives - Assets [Member]
Offsetting of Assets and Liabilities [Line Items]
Financial derivatives–assets, at fair value-	57,560,000	[2],[3]	59,664,000	[2],[4]
Financial Instruments Pledged as Collateral	0	[5],[6]	0	[5],[6]
Cash Collateral (Received) Pledged	(26,612,000)	[5],[6]	(17,273,000)	[5],[6]
Derivatives and Related Collateral Net	16,877,000		18,229,000
Excess cash collateral	1,200,000		3,200,000
Securities Purchased under Agreements to Resell [Member]
Offsetting of Assets and Liabilities [Line Items]
Financial Instruments Pledged as Collateral	0	[5],[6]	0	[5],[6]
Cash Collateral (Received) Pledged	0	[5],[6]	0	[5],[6]
Securities Sold under Agreements to Repurchase [Member]
Offsetting of Assets and Liabilities [Line Items]
Financial Instruments Pledged as Collateral	1,146,720,000	[5],[6]	1,205,278,000	[5],[6]
Cash Collateral (Received) Pledged	(688,000)	[5],[6]	2,926,000	[5],[6]
Financial Derivatives - Liabilities [Member]
Offsetting of Assets and Liabilities [Line Items]
Financial derivatives–liabilities, at fair value-	(29,504,000)	[2],[3]	(44,791,000)	[2],[4]
Financial Instruments Pledged as Collateral	0	[5],[6]	0	[5],[6]
Cash Collateral (Received) Pledged	15,414,000	[5],[6]	20,629,000	[5],[6]
Derivatives and Related Collateral Net	(19,000)		0
Excess cash collateral	$ 28,900,000		$ 36,400,000

[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] 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, and financial derivatives–assets. All financial derivatives–liabilities were concentrated in North America.Region Current Principal/Notional Value/Number of Shares/Number of Properties Cost/(Proceeds) Fair Value Percent ofEquityLong Investments: (In thousands, Expressed in U.S. Dollars) North America 2,449,649 $1,686,738 $1,729,893 274.55 %Europe 32,195 26,451 26,118 4.15 %Total 2,481,844 $1,713,189 $1,756,011 278.70 %Investments Sold Short: North America (TBAs and Government Debt) (756,627) $(789,167) $(787,667) (125.01)%Europe (Government Debt) (22,208) (23,481) (24,195) (3.84)%North America (Common Stock) (941) (7,004) (6,903) (1.10)%Total $(819,652) $(818,765) (129.95)%Repurchase Agreements: North America 4,944 $4,944 $4,944 0.78 %Europe 24,931 24,928 24,931 3.96 %Total 29,875 $29,872 $29,875 4.74 %Financial Derivatives–Assets: North America (583,909) $55,230 $57,558 9.14 %Europe (8,980) — 2 — %Total (592,889) $55,230 $57,560 9.14 %

[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/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] For the purpose of this presentation, for each row the total amount of financial instruments pledged and cash collateral (received) or pledged may not exceed the applicable gross amount of assets or (liabilities) as presented here. Therefore, we have reduced the amount of financial instruments pledged as collateral related to our reverse repurchase agreements and cash collateral pledged on our financial derivative liabilities. Total financial instruments pledged as collateral on our reverse repurchase agreements as of March 31, 2014 and December 31, 2013 were $1.38 billion and $1.48 billion, respectively. As of March 31, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $1.2 million and $3.2 million, respectively. As of March 31, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $28.9 million and $36.4 million, respectively.

[6] When collateral is pledged to or pledged by a counterparty, it is often pledged or posted with respect to all positions with such counterparty, and in such cases such collateral cannot be specifically identified as relating to a specific asset or liability. As a result, in preparing the above tables, the Company has made assumptions in allocating pledged or posted collateral among the various rows.