Ellington Financial (EFC) 10-Q 10 Nov 14 2014 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 04, 2014
Document and Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'Ellington Financial LLC	'
Entity Central Index Key	'0001411342	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	33,449,678

Consolidated_Statement_Of_Asse

Consolidated Statement Of Assets, Liabilities And Equity (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
ASSETS	'		'
Cash and cash equivalents	$129,124		$183,489
Investments, financial derivatives, and repurchase agreements:	'		'
Investments, at fair value (Cost – $2,391,276 and $1,688,257)	2,440,828		1,730,130
Financial derivatives–assets, at fair value (Net cost – $45,074 and $50,533)	56,366	[1]	59,664	[1]
Repurchase agreements (Cost – $47,192 and $27,943)	47,039	[1]	27,962	[1]
Total investments, financial derivatives, and repurchase agreements	2,544,233		1,817,756
Due from brokers	141,497		82,571
Receivable for securities sold	1,246,205		883,005
Interest and principal receivable	10,953		6,831
Other assets	2,525		1,546
Total Assets	4,074,537		2,975,198
Investments and financial derivatives:	'		'
Investments sold short, at fair value (Proceeds – $1,223,043 and $847,602)	1,221,894		845,614
Financial derivatives–liabilities, at fair value (Net proceeds – $33,950 and $29,746)	47,331	[1]	44,791	[1]
Total investments and financial derivatives	1,269,225		890,405
Reverse repurchase agreements	1,395,132	[1]	1,236,166	[1]
Due to brokers	12,010		19,762
Payable for securities purchased	576,455		193,047
Securitized debt (Proceeds – $849 and $980)	870		983
Accounts payable and accrued expenses	2,144		1,810
Base management fee payable	3,056		2,364
Incentive fee payable	1,400		3,091
Interest and dividends payable	2,138		1,521
Total Liabilities	3,262,430		2,349,149
Total Equity	812,107		626,049
TOTAL LIABILITIES AND EQUITY	4,074,537		2,975,198
ANALYSIS OF EQUITY:	'		'
Common shares, no par value, 100,000,000 shares authorized; (33,443,572 and 25,428,186 shares issued and outstanding)	796,108		611,282
Additional paid-in capital – LTIP units	9,269		9,119
Total Shareholders' Equity	805,377		620,401
Non-controlling interests	6,730		5,648
Total Equity	$812,107		$626,049
PER SHARE INFORMATION:	'		'
Common shares (in usd per share)	$24.08	[2]	$24.40
[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]	If all LTIP units and OP Units previously issued were vested and exchanged for common shares as of September 30, 2014 and 2013, shareholders' equity per share would be $23.79 and $24.19, respectively.

Consolidated_Statement_Of_Asse1

Consolidated Statement Of Assets, Liabilities And Equity (Parenthetical) (USD $)	9 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Investments at value, cost	$2,391,276	$1,688,257
Financial derivatives–assets, at fair value Net cost	45,074	50,533
Repurchase agreements, cost	47,192	27,943
Investments sold short at value, proceeds	-1,223,043	-847,602
Financial derivatives-liabilities, at fair value Net proceeds	-33,950	-29,746
Securitized debt proceeds	($849)	($980)
Common stock, par value	'	'
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	33,443,572	25,428,186
Common stock, shares outstanding	33,443,572	25,428,186

Consolidated_Condensed_Schedul

Consolidated Condensed Schedule Of Investments (Long Investments) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Schedule of Investments [Line Items]	'		'
Fair Value	$2,440,828,000		$1,730,130,000
Investment Owned, at Cost	2,391,276,000		1,688,257,000
Percentage collaterallized by GNRCMO certificates	100.00%		100.00%
Non-performing loans, maturity date not applicable	10,600,000		'
Unrated But Agency-Guaranteed [Member]	'		'
Schedule of Investments [Line Items]	'		'
Long investment holdings as a percentage of stockholders' equity	144.78%		164.58%
Long Investment A Rating [Member]	'		'
Schedule of Investments [Line Items]	'		'
Long investment holdings as a percentage of stockholders' equity	0.64%		0.34%
Long Investment BBB Rating [Member]	'		'
Schedule of Investments [Line Items]	'		'
Long investment holdings as a percentage of stockholders' equity	4.59%		2.97%
Long Investment BB Rating [Member]	'		'
Schedule of Investments [Line Items]	'		'
Long investment holdings as a percentage of stockholders' equity	66.71%		97.95%
Long Investment Unrated Rating [Member]	'		'
Schedule of Investments [Line Items]	'		'
Long investment holdings as a percentage of stockholders' equity	83.84%		10.52%
Principal And Interest - Fixed Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	124.03%	[1],[2],[3],[4],[5]	137.75%	[1],[2],[6],[7],[8]
Fair Value	1,007,244,000	[2],[3],[4],[5]	862,368,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 25,954 Federal National Mortgage Association Pool 3.50% 2042-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	25,954,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2042-10	[2],[3],[4],[5]	'
Fair Value	26,602,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 17,116 Federal National Mortgage Association Pool 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	17,116,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-11	[2],[3],[4],[5]	'
Fair Value	18,152,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 15,562 Federal National Mortgage Association Pool 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	15,562,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-11	[2],[3],[4],[5]	'
Fair Value	16,490,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 14,850 Government National Mortgage Association Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	14,850,000	[2],[3],[4],[5]	'
Investment Owned Description	'Government National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	15,784,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 14,095 Federal National Mortgage Association Pool 5.00% 2041-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	14,095,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2041-08	[2],[3],[4],[5]	'
Fair Value	15,583,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 12,100 Federal Home Loan Mortgage Corporation Pool 4.50% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	12,100,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-01	[2],[3],[4],[5]	'
Fair Value	13,227,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 12,351 Federal Home Loan Mortgage Corporation Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	12,351,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	13,106,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 11,623 Federal National Mortgage Association Pool 5.00% 2041-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	11,623,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2041-03	[2],[3],[4],[5]	'
Fair Value	12,984,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 11,143 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	11,143,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	11,750,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 10,646 Federal National Mortgage Association Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	10,646,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	11,287,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,734 Federal National Mortgage Association Pool 4.00% 2044-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	9,734,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-06	[2],[3],[4],[5]	'
Fair Value	10,335,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,338 Federal National Mortgage Association Pool 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	9,338,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	10,088,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,040 Federal Home Loan Mortgage Corporation Pool 4.00% 2043-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	9,040,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-07	[2],[3],[4],[5]	'
Fair Value	9,550,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 8,721 Federal National Mortgage Association Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	8,721,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	9,219,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 8,380 Federal National Mortgage Association Pool 4.50% 2044-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	8,380,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-02	[2],[3],[4],[5]	'
Fair Value	9,069,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,711 Federal National Mortgage Association Pool 5.00% 2044-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,711,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2044-03	[2],[3],[4],[5]	'
Fair Value	7,503,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 7,076 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	7,076,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-10	[2],[3],[4],[5]	'
Fair Value	7,490,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 7,034 Federal National Mortgage Association Pool 3.50% 2042-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	7,034,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2042-11	[2],[3],[4],[5]	'
Fair Value	7,234,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,692 Federal National Mortgage Association Pool 3.50% 2028-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,692,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2028-03	[2],[3],[4],[5]	'
Fair Value	7,077,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,464 Federal Home Loan Mortgage Corporation Pool 4.50% 2044-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,464,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-02	[2],[3],[4],[5]	'
Fair Value	7,068,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,302 Federal National Mortgage Association Pool 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,302,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	6,824,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,218 Federal National Mortgage Association Pool 4.50% 2046-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,218,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2026-04	[2],[3],[4],[5]	'
Fair Value	6,579,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,072 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,072,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	6,403,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,605 Federal National Mortgage Association Pool 4.50% 2044-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,605,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-02	[2],[3],[4],[5]	'
Fair Value	6,142,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,789 Federal Home Loan Mortgage Corporation Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,789,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	6,142,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,387 Federal National Mortgage Association Pool 5.00% 2044-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,387,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2044-03	[2],[3],[4],[5]	'
Fair Value	6,022,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,633 Federal National Mortgage Association Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,633,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	5,978,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,333 Federal National Mortgage Association Pool 5.50% 2039-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,333,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.50%	[2],[3],[4],[5]	'
Maturity	'2039-10	[2],[3],[4],[5]	'
Fair Value	5,939,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,588 Federal National Mortgage Association Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,588,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	5,906,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,289 Government National Mortgage Association Pool 4.54% 2062-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,289,000	[2],[3],[4],[5]	'
Investment Owned Description	'Government National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.54%	[2],[3],[4],[5]	'
Maturity	'2062-11	[2],[3],[4],[5]	'
Fair Value	5,760,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,434 Federal National Mortgage Association Pool 4.00% 2044-05 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,434,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-05	[2],[3],[4],[5]	'
Fair Value	5,753,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,427 Federal Home Loan Mortgage Corporation Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,427,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	5,731,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,757 Federal Home Loan Mortgage Corporation Pool 3.00% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,757,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	3.00%	[2],[3],[4],[5]	'
Maturity	'2043-01	[2],[3],[4],[5]	'
Fair Value	5,721,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,384 Federal Home Loan Mortgage Corporation Pool 3.50% 2029-05 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,384,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2029-05	[2],[3],[4],[5]	'
Fair Value	5,680,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,011 Federal National Mortgage Association Pool 4.50% 2043-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,011,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-12	[2],[3],[4],[5]	'
Fair Value	5,480,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,179 Federal National Mortgage Association Pool, 3.50% 2028-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,179,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2028-12	[2],[3],[4],[5]	'
Fair Value	5,471,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,155 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,155,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	5,466,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,150 Federal National Mortgage Association Pool 4.00% 2044-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,150,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-06	[2],[3],[4],[5]	'
Fair Value	5,448,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,501 Federal National Mortgage Association Pool 3.00% 2043-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,501,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.00%	[2],[3],[4],[5]	'
Maturity	'2043-04	[2],[3],[4],[5]	'
Fair Value	5,435,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,108 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,108,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-07	[2],[3],[4],[5]	'
Fair Value	5,424,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,066 Federal National Mortgage Association Pool 4.00% 2044-05 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,066,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-05	[2],[3],[4],[5]	'
Fair Value	5,374,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,958 Federal National Mortgage Association Pool 4.00% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,958,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-01	[2],[3],[4],[5]	'
Fair Value	5,264,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,684 Federal National Mortgage Association Pool 4.50% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,684,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-01	[2],[3],[4],[5]	'
Fair Value	5,126,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,841 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,841,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	5,124,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,522 Federal Home Loan Mortgage Corporation Pool 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,522,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,946,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,623 Federal National Mortgage Association Pool 4.00% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,623,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-01	[2],[3],[4],[5]	'
Fair Value	4,886,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,527 Federal National Mortgage Association Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,527,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	4,800,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,508 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,508,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-02	[2],[3],[4],[5]	'
Fair Value	4,787,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,514 Federal Home Loan Mortgage Corporation Pool 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,514,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	4,770,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,497 Federal Home Loan Mortgage Corporation Pool 4.00% 2044-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,497,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-09	[2],[3],[4],[5]	'
Fair Value	4,768,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,312 Federal National Mortgage Association Pool 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,312,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,691,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,253 Federal National Mortgage Association Pool 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,253,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,686,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,262 Federal National Mortgage Association Pool 4.50% 2044-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,262,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-02	[2],[3],[4],[5]	'
Fair Value	4,638,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,387 Federal National Mortgage Association Pool 3.50% 2029-05 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,387,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2029-05	[2],[3],[4],[5]	'
Fair Value	4,633,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,285 Government National Mortgage Association Pool 4.75% 2061-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,285,000	[2],[3],[4],[5]	'
Investment Owned Description	'Government National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.75%	[2],[3],[4],[5]	'
Maturity	'2061-01	[2],[3],[4],[5]	'
Fair Value	4,589,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,188 Federal National Mortgage Association Pool 4.50% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,188,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-11	[2],[3],[4],[5]	'
Fair Value	4,510,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,094 Federal National Mortgage Association Pool 4.50% 2044-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,094,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-03	[2],[3],[4],[5]	'
Fair Value	4,462,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,015 Federal National Mortgage Association Pool 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,015,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,458,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,138 Federal National Mortgage Association Pool 4.00% 2044-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,138,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-06	[2],[3],[4],[5]	'
Fair Value	4,380,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,094 Federal National Mortgage Association Pool 4.00% 2042-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,094,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2042-04	[2],[3],[4],[5]	'
Fair Value	4,327,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,079 Federal National Mortgage Association Pool 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,079,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2043-11	[2],[3],[4],[5]	'
Fair Value	4,325,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,988 Federal National Mortgage Association Pool 4.50% 2044-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,988,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2044-04	[2],[3],[4],[5]	'
Fair Value	4,319,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,958 Federal Home Loan Mortgage Corporation Pool 4.50% 2043-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,958,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-12	[2],[3],[4],[5]	'
Fair Value	4,290,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,823 Federal National Mortgage Association Pool 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,823,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,266,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,035 Federal Home Loan Mortgage Corporation Pool 3.50% 2029-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,035,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2029-02	[2],[3],[4],[5]	'
Fair Value	4,257,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,769 Federal National Mortgage Association Pool 5.00% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,769,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2044-01	[2],[3],[4],[5]	'
Fair Value	4,237,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,813 Federal National Mortgage Association Pool 5.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,813,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2043-11	[2],[3],[4],[5]	'
Fair Value	4,232,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,162 Federal Home Loan Mortgage Corporation Pool 3.50% 2043-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	4,162,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2043-06	[2],[3],[4],[5]	'
Fair Value	4,232,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,909 Federal National Mortgage Association Pool 4.00% 2044-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,909,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2044-10	[2],[3],[4],[5]	'
Fair Value	4,137,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,742 Federal National Mortgage Association Pool 5.00% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,742,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2044-01	[2],[3],[4],[5]	'
Fair Value	4,128,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,718 Federal National Mortgage Association Pool 5.00% 2040-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,718,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2040-11	[2],[3],[4],[5]	'
Fair Value	4,117,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,815 Federal National Mortgage Association Pool 4.50% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,815,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.50%	[2],[3],[4],[5]	'
Maturity	'2043-08	[2],[3],[4],[5]	'
Fair Value	4,112,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,838 Federal National Mortgage Corporation Pool 4.00% 2033-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,838,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	4.00%	[2],[3],[4],[5]	'
Maturity	'2033-11	[2],[3],[4],[5]	'
Fair Value	4,105,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,674 Federal National Mortgage Association Pool 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	3,674,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association Pool	[2],[3],[4],[5]	'
Rate	5.00%	[2],[3],[4],[5]	'
Maturity	'2043-10	[2],[3],[4],[5]	'
Fair Value	4,094,000	[2],[3],[4],[5]	'
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	298,087,000	[2],[3],[4],[5]	111,228,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal National Mortgage Association Pools	[2],[3],[4],[5]	'Other Federal National Mortgage Association Pools	[2],[6],[7],[8]
Fair Value	318,998,000	[2],[3],[4],[5]	115,792,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	3.00%	[2],[3],[4],[5]	3.00%	[2],[6],[7],[8]
Maturity	'2026-06	[2],[3],[4],[5]	'2028-06	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	6.00%	[2],[3],[4],[5]	6.00%	[2],[6],[7],[8]
Maturity	'2044-10	[2],[3],[4],[5]	'2044-01	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	145,950,000	[2],[3],[4],[5]	80,675,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal Home Loan Mortgage Corporation Pools	[2],[3],[4],[5]	'Other Federal Home Loan Mortgage Corporation Pools	[2],[6],[7],[8]
Fair Value	155,009,000	[2],[3],[4],[5]	81,716,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	3.00%	[2],[3],[4],[5]	2.50%	[2],[6],[7],[8]
Maturity	'2028-03	[2],[3],[4],[5]	'2028-09	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	6.00%	[2],[3],[4],[5]	6.00%	[2],[6],[7],[8]
Maturity	'2044-10	[2],[3],[4],[5]	'2043-12	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association Pools [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	20,467,000	[2],[3],[4],[5]	8,191,000	[2],[6],[7],[8]
Investment Owned Description	'Other Government National Mortgage Association Pools	[2],[3],[4],[5]	'Other Government National Mortgage Association Pools	[2],[6],[7],[8]
Fair Value	22,265,000	[2],[3],[4],[5]	8,949,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association Pools [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	4.49%	[2],[3],[4],[5]	4.49%	[2],[6],[7],[8]
Maturity	'2060-02	[2],[3],[4],[5]	'2061-11	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association Pools [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.54%	[2],[3],[4],[5]	4.68%	[2],[6],[7],[8]
Maturity	'2064-06	[2],[3],[4],[5]	'2062-11	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 38,439 Federal National Mortgage Association Pool, 3.50% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		38,439,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2043-01	[2],[6],[7],[8]
Fair Value	'		37,742,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 27,523 Federal National Mortgage Association Pool, 3.50% 2042-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		27,523,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2042-10	[2],[6],[7],[8]
Fair Value	'		27,407,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 17,735 Federal National Mortgage Association Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		17,735,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		18,327,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 18,267 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		18,267,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-04	[2],[6],[7],[8]
Fair Value	'		17,322,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 15,538 Federal National Mortgage Association Pool, 5.00% 2041-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		15,538,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2041-08	[2],[6],[7],[8]
Fair Value	'		16,910,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 16,572 Federal National Mortgage Association Pool, 3.00% 2028-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		16,572,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-06	[2],[6],[7],[8]
Fair Value	'		16,729,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 15,759 Federal National Mortgage Association Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		15,759,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		16,279,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 15,017 Federal National Mortgage Association Pool, 4.50% 2041-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		15,017,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2041-10	[2],[6],[7],[8]
Fair Value	'		15,958,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 14,835 Federal National Mortgage Association Pool, 4.50% 2041-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		14,835,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2041-09	[2],[6],[7],[8]
Fair Value	'		15,743,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 13,367 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		13,367,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		13,783,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 12,686 Federal Home Loan Mortgage Corporation Pool, 5.00% 2041-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		12,686,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2041-07	[2],[6],[7],[8]
Fair Value	'		13,692,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 12,316 Federal National Mortgage Association Pool, 5.00% 2041-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		12,316,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2041-03	[2],[6],[7],[8]
Fair Value	'		13,444,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 11,295 Federal National Mortgage Association Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		11,295,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		12,005,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 11,478 Federal National Mortgage Association Pool, 4.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		11,478,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		11,861,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 11,835 Federal National Mortgage Association Pool, 3.00% 2042-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		11,835,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2042-08	[2],[6],[7],[8]
Fair Value	'		11,263,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,697 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		9,697,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-07	[2],[6],[7],[8]
Fair Value	'		9,979,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,114 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		9,114,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		9,409,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 8,841 Federal Home Loan Mortgage Corporation Pool, 4.50% 2041-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		8,841,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2041-10	[2],[6],[7],[8]
Fair Value	'		9,378,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,025 Federal National Mortgage Association Pool, 4.00% 2043-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		9,025,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-12	[2],[6],[7],[8]
Fair Value	'		9,326,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 9,747 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		9,747,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-02	[2],[6],[7],[8]
Fair Value	'		9,251,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 8,789 Federal National Mortgage Association Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		8,789,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		9,013,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 7,413 Federal National Mortgage Association Pool, 4.50% 2026-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		7,413,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2026-04	[2],[6],[7],[8]
Fair Value	'		7,898,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,893 Federal National Mortgage Association Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,893,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		7,326,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 7,327 Federal National Mortgage Association Pool, 3.50% 2042-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		7,327,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2042-11	[2],[6],[7],[8]
Fair Value	'		7,299,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,854 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,854,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		7,005,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,288 Federal National Mortgage Association Pool, 5.50% 2039-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,288,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.50%	[2],[6],[7],[8]
Maturity	'		'2039-10	[2],[6],[7],[8]
Fair Value	'		6,946,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,463 Federal National Mortgage Association Pool, 4.50% 2043-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,463,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-09	[2],[6],[7],[8]
Fair Value	'		6,865,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,033 Federal National Mortgage Association Pool, 4.50% 2043-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,033,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-12	[2],[6],[7],[8]
Fair Value	'		6,418,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,022 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,022,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		6,228,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,025 Federal National Mortgage Association Pool, 4.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,025,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		6,218,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,632 Government National Mortgage Association Pool, 4.46% 2063-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,632,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.46%	[2],[6],[7],[8]
Maturity	'		'2063-02	[2],[6],[7],[8]
Fair Value	'		6,136,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,893 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,893,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		6,083,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,342 Federal National Mortgage Association Pool, 3.00% 2042-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,342,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2042-04	[2],[6],[7],[8]
Fair Value	'		6,035,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 6,287 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,287,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-01	[2],[6],[7],[8]
Fair Value	'		5,967,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,410 Federal National Mortgage Association Pool, 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,410,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		5,925,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,702 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,702,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		5,867,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,361 Government National Mortgage Association Pool, 4.54% 2062-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,361,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.54%	[2],[6],[7],[8]
Maturity	'		'2062-11	[2],[6],[7],[8]
Fair Value	'		5,859,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,241 Government National Mortgage Association Pool, 4.58% 2062-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,241,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.58%	[2],[6],[7],[8]
Maturity	'		'2062-10	[2],[6],[7],[8]
Fair Value	'		5,733,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,234 Government National Mortgage Association Pool, 4.63% 2061-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,234,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.63%	[2],[6],[7],[8]
Maturity	'		'2061-06	[2],[6],[7],[8]
Fair Value	'		5,688,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,978 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,978,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-04	[2],[6],[7],[8]
Fair Value	'		5,676,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,189 Government National Mortgage Association Pool, 4.60% 2062-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,189,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.60%	[2],[6],[7],[8]
Maturity	'		'2062-06	[2],[6],[7],[8]
Fair Value	'		5,672,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,338 Federal National Mortgage Association Pool, 4.50% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,338,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		5,668,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,274 Federal National Mortgage Association Pool, 4.00% 2026-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,274,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2026-07	[2],[6],[7],[8]
Fair Value	'		5,593,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,147 Federal Home Loan Mortgage Corporation Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,147,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		5,460,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,130 Federal Home Loan Mortgage Corporation Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,130,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		5,442,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,904 Federal National Mortgage Association Pool, 4.00% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,904,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-01	[2],[6],[7],[8]
Fair Value	'		5,063,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,484 Federal National Mortgage Association Pool, 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,484,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		4,897,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,720 Federal National Mortgage Association Pool, 4.00% 2042-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,720,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2042-04	[2],[6],[7],[8]
Fair Value	'		4,873,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 5,032 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		5,032,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-06	[2],[6],[7],[8]
Fair Value	'		4,776,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,472 Federal National Mortgage Association Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,472,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		4,768,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,604 Federal National Mortgage Association Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,604,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		4,758,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,477 Federal National Mortgage Association Pool, 4.50% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,477,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		4,754,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,581 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,581,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		4,715,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,359 Federal Home Loan Mortgage Corporation Pool, 4.50% 2043-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,359,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-09	[2],[6],[7],[8]
Fair Value	'		4,625,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,604 Federal National Mortgage Association Pool, 3.50% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,604,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		4,586,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,673 Federal Home Loan Mortgage Corporation Pool, 3.00% 2043-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,673,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2043-02	[2],[6],[7],[8]
Fair Value	'		4,435,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,060 Federal National Mortgage Association Pool, 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,060,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		4,423,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,025 Federal National Mortgage Association Pool, 5.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,025,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		4,387,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,231 Federal National Mortgage Association Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,231,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		4,372,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,932 Government National Mortgage Association Pool, 4.69% 2061-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,932,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.69%	[2],[6],[7],[8]
Maturity	'		'2061-07	[2],[6],[7],[8]
Fair Value	'		4,288,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,886 Government National Mortgage Association Pool, 4.75% 2061-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,886,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.75%	[2],[6],[7],[8]
Maturity	'		'2061-01	[2],[6],[7],[8]
Fair Value	'		4,213,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,864 Federal National Mortgage Association Pool, 5.00% 2040-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,864,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2040-11	[2],[6],[7],[8]
Fair Value	'		4,203,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,811 Federal National Mortgage Association Pool, 5.00% 2044-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,811,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2044-01	[2],[6],[7],[8]
Fair Value	'		4,169,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,826 Government National Mortgage Association Pool, 4.80% 2061-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,826,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.80%	[2],[6],[7],[8]
Maturity	'		'2061-02	[2],[6],[7],[8]
Fair Value	'		4,157,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 4,225 Federal Home Loan Mortgage Corporation Pool, 3.50% 2043-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,225,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2043-06	[2],[6],[7],[8]
Fair Value	'		4,137,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,929 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,929,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		4,043,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,801 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,801,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		3,885,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,599 Federal National Mortgage Association Pool, 4.50% 2043-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,599,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-12	[2],[6],[7],[8]
Fair Value	'		3,837,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,737 Federal Home Loan Mortgage Corporation Pool, 3.00% 2028-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,737,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-03	[2],[6],[7],[8]
Fair Value	'		3,810,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,434 Government National Mortgage Association Pool, 4.66% 2063-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,434,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.66%	[2],[6],[7],[8]
Maturity	'		'2063-01	[2],[6],[7],[8]
Fair Value	'		3,772,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,448 Federal National Mortgage Association Pool, 5.00% 2040-12 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,448,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2040-12	[2],[6],[7],[8]
Fair Value	'		3,759,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,601 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,601,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		3,715,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,594 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,594,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		3,710,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,566 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,566,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		3,683,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,400 Federal National Mortgage Association Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,400,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		3,613,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,495 Federal National Mortgage Association Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,495,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		3,608,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,273 Federal National Mortgage Association Pool, 4.50% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,273,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		3,479,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,515 Federal Home Loan Mortgage Corporation Pool, 3.50% 2043-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,515,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2043-06	[2],[6],[7],[8]
Fair Value	'		3,454,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,111 Federal National Mortgage Association Pool, 5.00% 2035-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,111,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2035-10	[2],[6],[7],[8]
Fair Value	'		3,429,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,134 Government National Mortgage Association Pool, 4.68% 2061-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,134,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.68%	[2],[6],[7],[8]
Maturity	'		'2061-10	[2],[6],[7],[8]
Fair Value	'		3,421,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,094 Government National Mortgage Association Pool, 5.54% 2060-02 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,094,000	[2],[6],[7],[8]
Investment Owned Description	'		'Government National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.54%	[2],[6],[7],[8]
Maturity	'		'2060-02	[2],[6],[7],[8]
Fair Value	'		3,420,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,469 Federal National Mortgage Association Pool, 3.50% 2042-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,469,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2042-06	[2],[6],[7],[8]
Fair Value	'		3,419,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,387 Federal Home Loan Mortgage Corporation Pool, 3.00% 2028-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,387,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-06	[2],[6],[7],[8]
Fair Value	'		3,412,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,421 Federal National Mortgage Association Pool, 3.50% 2043-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,421,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2043-01	[2],[6],[7],[8]
Fair Value	'		3,407,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,170 Federal National Mortgage Association Pool, 4.00% 2026-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,170,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2026-06	[2],[6],[7],[8]
Fair Value	'		3,362,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,200 Federal National Mortgage Association Pool, 3.50% 2028-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,200,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.50%	[2],[6],[7],[8]
Maturity	'		'2028-11	[2],[6],[7],[8]
Fair Value	'		3,355,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,194 Federal Home Loan Mortgage Corporation Pool, 4.00% 2043-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,194,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-08	[2],[6],[7],[8]
Fair Value	'		3,294,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,203 Federal National Mortgage Association Pool, 3.00% 2028-06 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,203,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-06	[2],[6],[7],[8]
Fair Value	'		3,274,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 2,981 Federal National Mortgage Association Pool, 5.00% 2043-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		2,981,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2043-11	[2],[6],[7],[8]
Fair Value	'		3,261,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,218 Federal National Mortgage Association Pool, 3.00% 2028-03 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,218,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-03	[2],[6],[7],[8]
Fair Value	'		3,249,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,142 Federal National Mortgage Association Pool, 4.00% 2043-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,142,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.00%	[2],[6],[7],[8]
Maturity	'		'2043-10	[2],[6],[7],[8]
Fair Value	'		3,247,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 3,124 Federal National Mortgage Association Pool, 3.00% 2028-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,124,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2028-07	[2],[6],[7],[8]
Fair Value	'		3,193,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 2,998 Federal Home Loan Mortgage Corporation Pool, 4.50% 2043-09 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		2,998,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2043-09	[2],[6],[7],[8]
Fair Value	'		3,191,000	[2],[6],[7],[8]
Principal And Interest - Fixed Rate Agency Securities [Member] | 2,996 Federal National Mortgage Association Pool, 4.50% 2042-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		2,996,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.50%	[2],[6],[7],[8]
Maturity	'		'2042-04	[2],[6],[7],[8]
Fair Value	'		3,182,000	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	1.84%	[1],[2],[3],[4],[5]	3.06%	[1],[2],[6],[7],[8]
Fair Value	14,957,000	[2],[3],[4],[5]	19,132,000	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	68,234,000	[2],[3],[4],[5]	97,796,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal National Mortgage Association	[2],[3],[4],[5]	'Other Federal National Mortgage Association	[2],[6],[7],[8]
Fair Value	9,768,000	[2],[3],[4],[5]	13,821,000	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	3.00%	[2],[3],[4],[5]	3.00%	[2],[6],[7],[8]
Maturity	'2020-12	[2],[3],[4],[5]	'2020-12	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.50%	[2],[3],[4],[5]	5.50%	[2],[6],[7],[8]
Maturity	'2043-06	[2],[3],[4],[5]	'2043-06	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	24,917,000	[2],[3],[4],[5]	21,959,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal Home Loan Mortgage Corporation	[2],[3],[4],[5]	'Other Federal Home Loan Mortgage Corporation	[2],[6],[7],[8]
Fair Value	3,663,000	[2],[3],[4],[5]	3,577,000	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	3.00%	[2],[3],[4],[5]	3.00%	[2],[6],[7],[8]
Maturity	'2032-12	[2],[3],[4],[5]	'2032-12	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.50%	[2],[3],[4],[5]	5.50%	[2],[6],[7],[8]
Maturity	'2043-01	[2],[3],[4],[5]	'2043-01	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	9,547,000	[2],[3],[4],[5]	10,460,000	[2],[6],[7],[8]
Investment Owned Description	'Other Government National Mortgage Association	[2],[3],[4],[5]	'Other Government National Mortgage Association	[2],[6],[7],[8]
Fair Value	1,526,000	[2],[3],[4],[5]	1,734,000	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	3.00%	[2],[3],[4],[5]	3.00%	[2],[6],[7],[8]
Maturity	'2040-07	[2],[3],[4],[5]	'2036-03	[2],[6],[7],[8]
Interest Only - Fixed Rate Agency Securities [Member] | Other Government National Mortgage Association [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	4.75%	[2],[3],[4],[5]	5.50%	[2],[6],[7],[8]
Maturity	'2042-11	[2],[3],[4],[5]	'2042-11	[2],[6],[7],[8]
TBA - Fixed Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	13.74%	[1],[2],[3],[4],[5]	15.47%	[1],[2],[6],[7],[8]
Current Principal/Notional Amount	112,448,000		101,150,000
Fair Value	111,624,000	[2],[3],[4],[5]	96,856,000	[2],[6],[7],[8]
TBA - Fixed Rate Agency Securities [Member] | Federal National Mortgage Association (30 Year) 3.00% 2014-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	43,978,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association (30 Year)	[2],[3],[4],[5]	'
Rate	3.00%	[2],[3],[4],[5]	'
Maturity	'2014-10	[2],[3],[4],[5]	'
Fair Value	43,347,000	[2],[3],[4],[5]	'
TBA - Fixed Rate Agency Securities [Member] | Federal Home Loan Mortgage Corporation (30 Year) 3.50% 2014-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	23,750,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation (30 Year)	[2],[3],[4],[5]	'
Rate	3.50%	[2],[3],[4],[5]	'
Maturity	'2014-10	[2],[3],[4],[5]	'
Fair Value	24,231,000	[2],[3],[4],[5]	'
TBA - Fixed Rate Agency Securities [Member] | Federal Home Loan Mortgage Corporation (30 Year) 3.00% 2014-10 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	23,120,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation (30 Year)	[2],[3],[4],[5]	'
Rate	3.00%	[2],[3],[4],[5]	'
Maturity	'2014-10	[2],[3],[4],[5]	'
Fair Value	22,815,000	[2],[3],[4],[5]	'
TBA - Fixed Rate Agency Securities [Member] | Federal National Mortgage Association (30 Year) 3.00% 2014-11 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	21,600,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal National Mortgage Association (30 Year)	[2],[3],[4],[5]	'
Rate	3.00%	[2],[3],[4],[5]	'
Maturity	'2014-11	[2],[3],[4],[5]	'
Fair Value	21,231,000	[2],[3],[4],[5]	'
TBA - Fixed Rate Agency Securities [Member] | 63,300 Federal Home Loan Mortgage Corporation (30 Year) 3.00% 2014-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		63,300,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation (30 Year)	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2014-01	[2],[6],[7],[8]
Fair Value	'		60,016,000	[2],[6],[7],[8]
TBA - Fixed Rate Agency Securities [Member] | 31,150 Federal National Mortgage Association (30 Year) 3.00% 2014-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		31,150,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association (30 Year)	[2],[6],[7],[8]
Rate	'		3.00%	[2],[6],[7],[8]
Maturity	'		'2014-01	[2],[6],[7],[8]
Fair Value	'		29,612,000	[2],[6],[7],[8]
TBA - Fixed Rate Agency Securities [Member] | 6,700 Federal Home Loan Mortgage Corporation (30 Year) 5.00% 2014-01 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,700,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation (30 Year)	[2],[6],[7],[8]
Rate	'		5.00%	[2],[6],[7],[8]
Maturity	'		'2014-01	[2],[6],[7],[8]
Fair Value	'		7,228,000	[2],[6],[7],[8]
Fixed Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	139.61%	[1],[2],[3],[4],[5]	156.28%	[1],[2],[6],[7],[8]
Fair Value	1,133,825,000	[2],[3],[4],[5]	978,356,000	[2],[6],[7],[8]
Investment Owned, at Cost	1,124,947,000	[2],[3],[4],[5]	992,207,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	2.26%	[1],[2],[3],[4],[5]	4.89%	[1],[2],[6],[7],[8]
Fair Value	18,360,000	[2],[3],[4],[5]	30,618,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	6,543,000	[2],[3],[4],[5]	3,667,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal National Mortgage Association Pools	[2],[3],[4],[5]	'Other Federal National Mortgage Association Pools	[2],[6],[7],[8]
Fair Value	7,000,000	[2],[3],[4],[5]	3,900,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.04%	[2],[3],[4],[5]	2.64%	[2],[6],[7],[8]
Maturity	'2035-09	[2],[3],[4],[5]	'2036-04	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association Pools [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	6.05%	[2],[3],[4],[5]	6.05%	[2],[6],[7],[8]
Maturity	'2037-09	[2],[3],[4],[5]	'2037-09	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,662,000	[2],[3],[4],[5]	3,148,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal Home Loan Mortgage Corporation Pools	[2],[3],[4],[5]	'Other Federal Home Loan Mortgage Corporation Pools	[2],[6],[7],[8]
Fair Value	5,920,000	[2],[3],[4],[5]	3,341,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	2.36%	[2],[3],[4],[5]	5.83%	[2],[6],[7],[8]
Maturity	'2037-06	[2],[3],[4],[5]	'2037-06	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation Pools [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.94%	[2],[3],[4],[5]	5.89%	[2],[6],[7],[8]
Maturity	'2044-05	[2],[3],[4],[5]	'2037-07	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | 5,085 Federal Home Loan Mortgage Corporation Pool 4.92% 2038-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,085,000	[2],[3],[4],[5]	'
Investment Owned Description	'Federal Home Loan Mortgage Corporation Pool	[2],[3],[4],[5]	'
Rate	4.92%	[2],[3],[4],[5]	'
Maturity	'2038-04	[2],[3],[4],[5]	'
Fair Value	5,440,000	[2],[3],[4],[5]	'
Principal And Interest - Floating Rate Agency Securities [Member] | 6,281 Federal Home Loan Mortgage Corporation Pool, 4.92% 2038-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		6,281,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal Home Loan Mortgage Corporation Pool	[2],[6],[7],[8]
Rate	'		4.92%	[2],[6],[7],[8]
Maturity	'		'2038-04	[2],[6],[7],[8]
Fair Value	'		6,709,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | 4,935 Federal National Mortgage Association Pool, 4.27% 2040-04 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		4,935,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		4.27%	[2],[6],[7],[8]
Maturity	'		'2040-04	[2],[6],[7],[8]
Fair Value	'		5,256,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | 3,674 Federal National Mortgage Association Pool, 5.73% 2037-07 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,674,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		5.73%	[2],[6],[7],[8]
Maturity	'		'2037-07	[2],[6],[7],[8]
Fair Value	'		3,937,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | 3,646 Federal National Mortgage Association Pool, 2.53% 2038-05 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,646,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		2.53%	[2],[6],[7],[8]
Maturity	'		'2038-05	[2],[6],[7],[8]
Fair Value	'		3,878,000	[2],[6],[7],[8]
Principal And Interest - Floating Rate Agency Securities [Member] | 3,395 Federal National Mortgage Association Pool, 6.1% 2037-08 [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		3,395,000	[2],[6],[7],[8]
Investment Owned Description	'		'Federal National Mortgage Association Pool	[2],[6],[7],[8]
Rate	'		6.10%	[2],[6],[7],[8]
Maturity	'		'2037-08	[2],[6],[7],[8]
Fair Value	'		3,597,000	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	2.91%	[1],[2],[3],[4],[5]	3.41%	[1],[2],[6],[7],[8]
Fair Value	23,615,000	[2],[3],[4],[5]	21,372,000	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	29,766,000	[2],[3],[4],[5]	25,322,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal National Mortgage Association	[2],[3],[4],[5]	'Other Federal National Mortgage Association	[2],[6],[7],[8]
Fair Value	5,161,000	[2],[3],[4],[5]	4,600,000	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	5.50%	[2],[3],[4],[5]	5.50%	[2],[6],[7],[8]
Maturity	'2035-04	[2],[3],[4],[5]	'2036-08	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal National Mortgage Association [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	6.60%	[2],[3],[4],[5]	6.59%	[2],[6],[7],[8]
Maturity	'2043-07	[2],[3],[4],[5]	'2043-07	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	7,692,000	[2],[3],[4],[5]	18,180,000	[2],[6],[7],[8]
Investment Owned Description	'Other Federal Home Loan Mortgage Corporation	[2],[3],[4],[5]	'Other Federal Home Loan Mortgage Corporation	[2],[6],[7],[8]
Rate	5.85%	[2],[3],[4],[5]	'
Maturity	'2039-08	[2],[3],[4],[5]	'
Fair Value	941,000	[2],[3],[4],[5]	2,433,000	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	'		5.83%	[2],[6],[7],[8]
Maturity	'		'2038-11	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Federal Home Loan Mortgage Corporation [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	'		6.53%	[2],[6],[7],[8]
Maturity	'		'2039-08	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Government National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	192,100,000	[2],[3],[4],[5]	108,194,000	[2],[6],[7],[8]
Investment Owned Description	'Other Government National Mortgage Association	[2],[3],[4],[5]	'Other Government National Mortgage Association	[2],[6],[7],[8]
Fair Value	15,481,000	[2],[3],[4],[5]	11,987,000	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Government National Mortgage Association [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	0.39%	[2],[3],[4],[5]	1.64%	[2],[6],[7],[8]
Maturity	'2042-11	[2],[3],[4],[5]	'2042-11	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Other Government National Mortgage Association [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	6.60%	[2],[3],[4],[5]	6.58%	[2],[6],[7],[8]
Maturity	'2063-10	[2],[3],[4],[5]	'2063-08	[2],[6],[7],[8]
Interest Only - Floating Rate Agency Securities [Member] | Resecuritization of Government National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	21,706,000	[2],[3],[4],[5],[9]	22,796,000	[2],[6],[7],[8],[9]
Investment Owned Description	'Resecuritization of Government National Mortgage Association (w)	[2],[3],[4],[5],[9]	'Resecuritization of Government National Mortgage Association (t)	[2],[6],[7],[8],[9]
Rate	4.34%	[2],[3],[4],[5],[9]	4.34%	[2],[6],[7],[8],[9]
Maturity	'2060-08	[2],[3],[4],[5],[9]	'2060-08	[2],[6],[7],[8],[9]
Fair Value	2,032,000	[2],[3],[4],[5],[9]	2,352,000	[2],[6],[7],[8],[9]
Floating Rate Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	5.17%	[1],[2],[3],[4],[5]	8.30%	[1],[2],[6],[7],[8]
Fair Value	41,975,000	[2],[3],[4],[5]	51,990,000	[2],[6],[7],[8]
Investment Owned, at Cost	40,824,000	[2],[3],[4],[5]	50,969,000	[2],[6],[7],[8]
Agency Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	144.78%	[1],[2],[3],[4],[5]	164.58%	[1],[2],[6],[7],[8]
Fair Value	1,175,800,000	[2],[3],[4],[5]	1,030,346,000	[2],[6],[7],[8]
Investment Owned, at Cost	1,165,771,000	[2],[3],[4],[5]	1,043,176,000	[2],[6],[7],[8]
Principal And Interest - Private Label Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	66.86%	[1],[2],[3],[4]	97.40%	[1],[2],[6],[7]
Fair Value	542,990,000	[2],[3],[4]	609,766,000	[2],[6],[7]
Investment Owned, at Cost	504,510,000	[2],[3],[4]	555,708,000	[2],[6],[7]
Principal And Interest - Private Label Securities [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	866,595,000	[2],[3],[4]	920,032,000	[2],[6],[7]
Investment Owned Description	'Various	[2],[3],[4]	'Various	[2],[6],[7]
Fair Value	542,990,000	[2],[3],[4]	609,766,000	[2],[6],[7]
Principal And Interest - Private Label Securities [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	0.00%	[2],[3],[4]	0.24%	[2],[6],[7]
Maturity	'2015-07	[2],[3],[4]	'2019-05	[2],[6],[7]
Principal And Interest - Private Label Securities [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	9.35%	[2],[3],[4]	9.35%	[2],[6],[7]
Maturity	'2061-01	[2],[3],[4]	'2050-06	[2],[6],[7]
Principal Only - Private Label Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.40%	[1],[2],[3],[4]	0.45%	[1],[2],[6],[7]
Fair Value	3,248,000	[2],[3],[4]	2,784,000	[2],[6],[7]
Investment Owned, at Cost	2,671,000	[2],[3],[4]	2,477,000	[2],[6],[7]
Principal Only - Private Label Securities [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	5,800,000	[2],[3],[4]	5,800,000	[2],[6],[7]
Investment Owned Description	'Various	[2],[3],[4]	'Various	[2],[6],[7]
Rate	0.00%	[2],[3],[4]	0.00%	[2],[6],[7]
Maturity	'2030-08	[2],[3],[4]	'2030-08	[2],[6],[7]
Fair Value	3,248,000	[2],[3],[4]	2,784,000	[2],[6],[7]
Interest Only - Private Label Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.27%	[1],[2],[3],[4]	0.19%	[1],[2],[6],[7]
Fair Value	2,149,000	[2],[3],[4]	1,216,000	[2],[6],[7]
Investment Owned, at Cost	1,387,000	[2],[3],[4]	519,000	[2],[6],[7]
Interest Only - Private Label Securities [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	60,779,000	[2],[3],[4]	50,649,000	[2],[6],[7]
Investment Owned Description	'Various	[2],[3],[4]	'Various	[2],[6],[7]
Fair Value	2,149,000	[2],[3],[4]	1,216,000	[2],[6],[7]
Interest Only - Private Label Securities [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	0.50%	[2],[3],[4]	0.50%	[2],[6],[7]
Maturity	'2044-06	[2],[3],[4]	'2044-06	[2],[6],[7]
Interest Only - Private Label Securities [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	2.00%	[2],[3],[4]	2.00%	[2],[6],[7]
Maturity	'2047-09	[2],[3],[4]	'2047-09	[2],[6],[7]
Other Private Label Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.00%	[1],[2],[3],[4]	0.00%	[1],[2],[6],[7]
Fair Value	0	[2],[3],[4]	0	[2],[6],[7]
Investment Owned, at Cost	311,000	[2],[3],[4]	345,000	[2],[6],[7]
Other Private Label Securities [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	114,905,000	[2],[3],[4]	127,491,000	[2],[6],[7]
Investment Owned Description	'Various	[2],[3],[4]	'Various	[2],[6],[7]
Rate	0.00%	[2],[3],[4]	0.00%	[2],[6],[7]
Fair Value	0	[2],[3],[4]	0	[2],[6],[7]
Other Private Label Securities [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Maturity	'2037-06	[2],[3],[4]	'2037-06	[2],[6],[7]
Other Private Label Securities [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Maturity	'2047-10	[2],[3],[4]	'2045-07	[2],[6],[7]
Private Label Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	67.53%	[1],[2],[3],[4]	98.04%	[1],[2],[6],[7]
Fair Value	548,387,000	[2],[3],[4]	613,766,000	[2],[6],[7]
Investment Owned, at Cost	508,879,000	[2],[3],[4]	559,049,000	[2],[6],[7]
Mortgage-Backed Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	212.31%	[1],[2],[3],[4]	262.62%	[1],[2],[6],[7]
Fair Value	1,724,187,000	[2],[3],[4]	1,644,112,000	[2],[6],[7]
Investment Owned, at Cost	1,674,650,000	[2],[3],[4]	1,602,225,000	[2],[6],[7]
Other Asset-backed Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	'		6.08%	[1],[2],[6],[7]
Fair Value	'		38,069,000	[2],[6],[7]
Investment Owned, at Cost	'		38,758,000	[2],[6],[7]
Other Asset-backed Securities [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	'		42,822,000	[2],[6],[7]
Investment Owned Description	'		'Various	[2],[6],[7]
Fair Value	'		38,069,000	[2],[6],[7]
Other Asset-backed Securities [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	'		0.00%	[2],[6],[7]
Maturity	'		'2017-06	[2],[6],[7]
Other Asset-backed Securities [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	'		9.74%	[2],[6],[7]
Maturity	'		'2040-12	[2],[6],[7]
Other sset-backed securities and loans [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	13.44%	[1],[2],[3],[4]	'
Fair Value	109,152,000	[2],[3],[4]	'
Investment Owned, at Cost	110,423,000	[2],[3],[4]	'
Other sset-backed securities and loans [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	126,490,000	[2],[3],[4]	'
Investment Owned Description	'Various	[2],[3],[4]	'
Fair Value	109,152,000	[2],[3],[4]	'
Other sset-backed securities and loans [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	0.00%	[2],[3],[4]	'
Maturity	'2017-03	[2],[3],[4]	'
Other sset-backed securities and loans [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	9.73%	[2],[3],[4]	'
Maturity	'2068-09	[2],[3],[4]	'
Commercial Mortgage Loans [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	3.68%	[1],[10],[2],[3],[4]	3.82%	[1],[11],[2],[6],[7]
Fair Value	29,852,000	[10],[2],[3],[4]	23,887,000	[11],[2],[6],[7]
Investment Owned, at Cost	29,850,000	[10],[2],[3],[4]	23,212,000	[11],[2],[6],[7]
Commercial Mortgage Loans [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	34,123,000	[10],[2],[3],[4]	26,227,000	[11],[2],[6],[7]
Investment Owned Description	'Various	[10],[2],[3],[4]	'Various	[11],[2],[6],[7]
Fair Value	29,852,000	[10],[2],[3],[4]	23,887,000	[11],[2],[6],[7]
Commercial Mortgage Loans [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	0.00%	[10],[2],[3],[4]	0.00%	[11],[2],[6],[7]
Maturity	'2014-12	[10],[2],[3],[4]	'2014-06	[11],[2],[6],[7]
Commercial Mortgage Loans [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Rate	10.00%	[10],[2],[3],[4]	7.25%	[11],[2],[6],[7]
Maturity	'2017-11	[10],[2],[3],[4]	'2016-12	[11],[2],[6],[7]
Residential Mortgage Loans [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	2.11%	[1],[2],[3],[4]	3.84%	[1],[2],[6],[7]
Fair Value	17,147,000	[2],[3],[4]	24,062,000	[2],[6],[7]
Investment Owned, at Cost	16,324,000	[2],[3],[4]	24,062,000	[2],[6],[7]
Residential Mortgage Loans [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	23,551,000	[2],[3],[4]	36,218,000	[2],[6],[7]
Investment Owned Description	'Various	[2],[3],[4]	'Various	[2],[6],[7]
Rate	0.00%	[2],[3],[4]	0.00%	[2],[6],[7]
Fair Value	17,147,000	[2],[3],[4]	24,062,000	[2],[6],[7]
Residential Mortgage Loans [Member] | Various Issuer [Member] | Minimum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Maturity	'2018-02	[2],[3],[4]	'2024-08
Residential Mortgage Loans [Member] | Various Issuer [Member] | Maximum [Member]	'		'
Schedule of Investments [Line Items]	'		'
Maturity	'2054-05	[2],[3],[4]	'2042-10
Real Estate Owned [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.92%	[1],[12],[2],[3],[4]	'
Fair Value	7,464,000	[12],[2],[3],[4]	'
Investment Owned, at Cost	7,252,000	[12],[2],[3],[4]	'
Real Estate Owned [Member] | Single-Family Houses [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	46	[12],[2],[3],[4]	'
Investment Owned Description	'Single-Family Houses	[12],[2],[3],[4]	'
Fair Value	5,420,000	[12],[2],[3],[4]	'
Real Estate Owned [Member] | Commercial Property [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	1	[12],[2],[3],[4]	'
Investment Owned Description	'Commercial Property	[12],[2],[3],[4]	'
Fair Value	2,044,000	[12],[2],[3],[4]	'
Private Corporate Investments [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.95%	[1],[2],[3],[4]	'
Fair Value	7,686,000	[2],[3],[4]	'
Investment Owned, at Cost	7,924,000	[2],[3],[4]	'
Private Corporate Investments [Member] | North America [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	0.95%		'
Fair Value	7,686,000		'
Investment Owned, Balance, Shares	13,225,000		'
Investment Owned, at Cost	7,924,000		'
Private Corporate Investments [Member] | Preferred Stock [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment Owned Description	'Preferred Equity Investment in Commercial Mortgage-related Partnership	[2],[3],[4]	'
Fair Value	5,000,000	[2],[3],[4]	'
Investment Owned, Balance, Shares	5,000,000	[2],[3],[4]	'
Private Corporate Investments [Member] | Equity in Mortgage Originator [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment Owned Description	'Equity Investment in Mortgage Originator	[2],[3],[4]	'
Fair Value	2,686,000	[2],[3],[4]	'
Investment Owned, Balance, Shares	8,225,000	[2],[3],[4]	'
US Treasury Securities [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	67.16%	[1],[2],[3],[4]	'
Fair Value	545,340,000	[2],[3],[4]	'
Investment Owned, at Cost	544,853,000	[2],[3],[4]	'
US Treasury Securities [Member] | U.S. Treasury Note 1.75% [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	526,091,000	[2],[3],[4]	'
Investment Owned Description	'U.S. Treasury Note	[2],[3],[4]	'
Rate	1.75%	[2],[3],[4]	'
Maturity	'2019-09	[2],[3],[4]	'
Fair Value	525,452,000	[2],[3],[4]	'
US Treasury Securities [Member] | U.S. Treasury Note 1.00% [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	12,223,000	[2],[3],[4]	'
Investment Owned Description	'U.S. Treasury Note	[2],[3],[4]	'
Rate	100.00%	[2],[3],[4]	'
Maturity	'2017-09	[2],[3],[4]	'
Fair Value	12,206,000	[2],[3],[4]	'
US Treasury Securities [Member] | US Treasury Notes 2.38% [Member]	'		'
Schedule of Investments [Line Items]	'		'
Current Principal/Notional Amount	7,769,000	[2],[3],[4]	'
Investment Owned Description	'U.S. Treasury Note	[2],[3],[4]	'
Rate	238.00%	[2],[3],[4]	'
Maturity	'2024-08	[2],[3],[4]	'
Fair Value	7,682,000	[2],[3],[4]	'
Long Investments [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	300.56%	[1],[2],[3],[4]	276.36%	[1],[2],[6],[7]
Current Principal/Notional Amount	'		2,478,291,000
Fair Value	2,440,828,000	[2],[3],[4]	1,730,130,000	[2],[6],[7]
Investment Owned, at Cost	2,391,276,000	[2],[3],[4]	1,688,257,000	[2],[6],[7]
Long Investments [Member] | North America [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	294.75%		275.44%
Current Principal/Notional Amount	3,161,385,000		2,470,650,000
Fair Value	2,393,715,000		1,724,370,000
Investment Owned, at Cost	2,342,001,000		1,682,533,000
Long Investments [Member] | Europe [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	4.85%		0.92%
Current Principal/Notional Amount	43,235,000		7,641,000
Fair Value	39,427,000		5,760,000
Investment Owned, at Cost	41,351,000		5,724,000
Long Investments [Member] | Federal National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	92.40%		100.85%
Long Investments [Member] | Federal Home Loan Mortgage Corporation [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	44.08%		51.37%
Long Investments [Member] | Government National Mortgage Association [Member]	'		'
Schedule of Investments [Line Items]	'		'
Investment owned as a percentage of equity	8.30%		12.36%
Commercial Mortgage Loan With Extendable Maturity [Member] | Commercial Mortgage Loans [Member] | Various Issuer [Member]	'		'
Schedule of Investments [Line Items]	'		'
Fair Value	'		$5,000,000
[1]	Classification percentages are based on Total Equity.
[2]	See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[3]	The table below shows the Company's long investment ratings from Moody's, Standard and Poor's, or Fitch, as well as the Company's long investments that were unrated but guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, or the Government National Mortgage Association. Ratings tend to be a lagging credit indicator; as a result, the credit quality of the Company's long investment holdings may be lower than the credit quality implied based on the ratings listed below. In situations where an investment has a split rating, the lowest provided rating is used. The ratings descriptions include ratings qualified with a "+," "-," "1," "2," or "3."Rating Description Percent of EquityUnrated but Agency-Guaranteed 144.78%A/A/A 0.64%Baa/BBB/BBB 4.59%Ba/BB/BB or below 66.71%Unrated 83.84%
[4]	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)%
[5]	At September 30, 2014, the Company's long investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 92.40%, 44.08%, and 8.30% of equity, respectively.
[6]	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 %
[7]	The table below shows the ratings on the Company's long investments from Moody's, Standard and Poor's, or Fitch, as well as the Company's long investments that were unrated but guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, or the Government National Mortgage Association. Ratings tend to be a lagging credit indicator; as a result, the credit quality of the Company's long investment holdings may be lower than the credit quality implied based on the ratings listed below. In situations where an investment has a split rating, the lowest provided rating is used. The ratings descriptions include ratings qualified with a "+," "-," "1," "2," or "3."Rating Description Percent ofEquityUnrated but Agency-Guaranteed 164.58%A/A/A 0.34%Baa/BBB/BBB 2.97%Ba/BB/BB or below 97.95%Unrated 10.52%
[8]	At December 31, 2013, the Company's long investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 100.85%, 51.37%, and 12.36% of equity, respectively.
[9]	Private trust 100% backed by interest in Government National Mortgage Association collateralized mortgage obligation certificates.
[10]	Includes non-performing commercial loans in the amount of $10.6 million whereby principal and/or interest is past due and a maturity date is not applicable.
[11]	Includes a loan with a fair value in the amount of $5.0 million where the maturity date may be extended through November 4, 2015 as well as non-performing commercial mortgage loans.
[12]	Number of properties not shown in thousands, represents actual number of properties owned.

Consolidated_Condensed_Schedul1

Consolidated Condensed Schedule Of Investments (Repurchase Agreements) (Repurchase Agreements [Member], USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Deutsche Bank Securities Collateralized By Par Value $15,657 Sovereign Government Bond Coupon 3.75% Maturity Date 2018-10 [Member]

Deutsche Bank Securities Collateralized By Par Value $7,580 Sovereign Government Bond, Coupon 2.75% Maturity Date 2019-04 [Member]

Barclays Capital Inc. Collateralized By Par Value $7,669 US Treasury Bond, Coupon 3.13% Maturity Date 2044-08 [Member]

Barclays Capital Inc. Collateralized By Par Value, $7,500 U.S. Treasury Note Coupon 1.63% Maturity Date 2019-08 [Member]

Barclays Capital Inc. Collateralized By Par Value $5,000 US Treasury Note Coupon 1.25% Maturity Date 2018-10 [Member]

Deutsche Bank Securities Collateralized By Par Value $28 US Treasury Note Coupon, 1.00% Maturity Date 2017-09[Member]

JP Morgan Securities Inc Collateralized by Par Value $20,000 U.S. Treasury Note Coupon 1.25% Maturity Date 2018-10 [Member]

Deutsche Bank Securities Collateralized by Par Value $5,625 Sovereign Bond Coupon 3.75% Maturity Date 2018-10 [Member]

North America [Member]

North America [Member]

Europe [Member]

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.

Consolidated_Condensed_Schedul2

Consolidated Condensed Schedule Of Investments (Investments Sold Short) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Investments Sold, Not yet Purchased [Line Items]	'		'
Financial derivatives-liabilities, at fair value Net proceeds	($33,950)		($29,746)
Financial derivatives–liabilities, at fair value-	-47,331	[1]	-44,791	[1]
Investments sold short, at fair value-	-1,221,894		-845,614
Proceeds from investments sold short	-1,223,043		-847,602
Financial derivatives–assets, at fair value Net cost	45,074		50,533
Financial derivatives–assets, at fair value-	56,366	[1]	59,664	[1]
Investment Owned, at Cost	2,391,276		1,688,257
Fair Value	2,440,828		1,730,130
TBA - Fixed Rate Agency Securities Sold Short [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-142.70%	[2],[3],[4],[5]	-129.69%	[2],[3],[6],[7]
Current Principal/Notional Amount	-1,101,218		-784,888
Investments sold short, at fair value-	-1,158,892	[3],[4],[5]	-811,957	[3],[6],[7]
Proceeds from investments sold short	-1,158,171	[3],[4],[5]	-813,757	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 4.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-248,558	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-261,957	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 3.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-192,422	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	3.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-196,669	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 Year) 3.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-119,830	[3],[4],[5]	'
Description	'Federal National Mortgage Association (15 year)	[3],[4],[5]	'
Rate	3.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-126,046	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 Year) 4.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-115,217	[3],[4],[5]	'
Description	'Federal Home Loan Mortgage Corporation (30 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-121,293	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 4.50% 2014-10 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-84,730	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	4.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-91,429	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 5.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-62,750	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	5.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-69,263	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 Year) 3.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-61,110	[3],[4],[5]	'
Description	'Federal National Mortgage Association (15 year)	[3],[4],[5]	'
Rate	3.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-62,943	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 Year) 2.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-38,900	[3],[4],[5]	'
Description	'Federal National Mortgage Association (15 year)	[3],[4],[5]	'
Rate	2.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-39,119	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (15 Year) 3.50%[Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-29,700	[3],[4],[5]	'
Description	'Federal Home Loan Mortgage Corporation (15 year)	[3],[4],[5]	'
Rate	3.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-31,180	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 4.00% 2014-11 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-29,300	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-11	[3],[4],[5]	'
Investments sold short, at fair value-	-30,788	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 5.00% 2014-12 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-27,300	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	5.00%	[3],[4],[5]	'
Investments maturity date	'2014-12	[3],[4],[5]	'
Investments sold short, at fair value-	-30,014	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 4.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-17,500	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	4.50%	[3],[4],[5]	'
Investments maturity date	'2014-11	[3],[4],[5]	'
Investments sold short, at fair value-	-18,837	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 Year) 4.50% 2014-11 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-17,300	[3],[4],[5]	'
Description	'Federal Home Loan Mortgage Corporation (30 year)	[3],[4],[5]	'
Rate	4.50%	[3],[4],[5]	'
Investments maturity date	'2014-11	[3],[4],[5]	'
Investments sold short, at fair value-	-18,616	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Government National Mortgage Association (30 Year) 4.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-14,900	[3],[4],[5]	'
Description	'Government National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-11	[3],[4],[5]	'
Investments sold short, at fair value-	-15,768	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 Year) 4.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-12,631	[3],[4],[5]	'
Description	'Federal Home Loan Mortgage Corporation (30 year)	[3],[4],[5]	'
Rate	4.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-13,625	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 Year) 4.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-9,870	[3],[4],[5]	'
Description	'Federal National Mortgage Association (15 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-10,447	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 Year) 5.50% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-6,700	[3],[4],[5]	'
Description	'Federal National Mortgage Association (30 year)	[3],[4],[5]	'
Rate	5.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-7,464	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 year) 5.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-6,000	[3],[4],[5]	-23,200	[3],[6],[7]
Description	'Federal Home Loan Mortgage Corporation (30 year)	[3],[4],[5]	'Federal Home Loan Mortgage Corporation (30 year)	[3],[6],[7]
Rate	5.00%	[3],[4],[5]	5.00%	[3],[6],[7]
Investments maturity date	'2014-10	[3],[4],[5]	'2014-02	[3],[6],[7]
Investments sold short, at fair value-	-6,612	[3],[4],[5]	-24,996	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (15 Year) 3.00% [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-4,100	[3],[4],[5]	'
Description	'Federal Home Loan Mortgage Corporation (15 year)	[3],[4],[5]	'
Rate	3.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-4,216	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal Home Loan Mortgage Corporation (30 Year) [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-1,300	[3],[4],[5]	'
Description	'Other Federal Home Loan Mortgage Corporation (30 year)		'
Rate	5.50%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-1,444	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal Home Loan Mortgage Corporation (15 Year) [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-1,100	[3],[4],[5]	'
Description	'Other Federal Home Loan Mortgage Corporation (15 year)	[3],[4],[5]	'
Rate	4.00%	[3],[4],[5]	'
Investments maturity date	'2014-10	[3],[4],[5]	'
Investments sold short, at fair value-	-1,162	[3],[4],[5]	'
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 4.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-156,890	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		4.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-161,689	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 3.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-136,182	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		3.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-135,427	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 4.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-96,700	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		4.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-102,559	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 year) 3.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-89,600	[3],[6],[7]
Description	'		'Federal National Mortgage Association (15 year)	[3],[6],[7]
Rate	'		3.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-93,716	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 5.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-57,600	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		5.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-62,617	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 year) 3.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-58,960	[3],[6],[7]
Description	'		'Federal National Mortgage Association (15 year)	[3],[6],[7]
Rate	'		3.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-60,158	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 year) 4.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-57,837	[3],[6],[7]
Description	'		'Federal Home Loan Mortgage Corporation (30 year)	[3],[6],[7]
Rate	'		4.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-59,409	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 year) 2.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-31,150	[3],[6],[7]
Description	'		'Federal National Mortgage Association (15 year)	[3],[6],[7]
Rate	'		2.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-30,816	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 4.50% 2014-02 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-24,400	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		4.50%	[3],[6],[7]
Investments maturity date	'		'2014-02	[3],[6],[7]
Investments sold short, at fair value-	'		-25,798	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (15 year) 4.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-16,604	[3],[6],[7]
Description	'		'Federal National Mortgage Association (15 year)	[3],[6],[7]
Rate	'		4.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-17,589	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (15 year) 3.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-8,200	[3],[6],[7]
Description	'		'Federal Home Loan Mortgage Corporation (15 year)	[3],[6],[7]
Rate	'		3.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-8,550	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association (30 year) 5.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-6,700	[3],[6],[7]
Description	'		'Federal National Mortgage Association (30 year)	[3],[6],[7]
Rate	'		5.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-7,373	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 year) 3.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-6,550	[3],[6],[7]
Description	'		'Federal Home Loan Mortgage Corporation (30 year)	[3],[6],[7]
Rate	'		3.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-6,495	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (15 year) 3.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-4,100	[3],[6],[7]
Description	'		'Federal Home Loan Mortgage Corporation (15 year)	[3],[6],[7]
Rate	'		3.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-4,175	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation (30 year) 4.50% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-3,900	[3],[6],[7]
Description	'		'Federal Home Loan Mortgage Corporation (30 year)	[3],[6],[7]
Rate	'		4.50%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-4,129	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal National Mortgage Association (30 year) 6.00% 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-2,500	[3],[6],[7]
Description	'		'Other Federal National Mortgage Association (30 Year)	[3],[6],[7]
Rate	'		6.00%	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-2,776	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal Home Loan Mortgage Corporation (30 year) 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	'		-3,815	[3],[6],[7]
Description	'		'Other Federal Home Loan Mortgage Corporation (30 Year)	[3],[6],[7]
Investments maturity date	'		'2014-01	[3],[6],[7]
Investments sold short, at fair value-	'		-3,685	[3],[6],[7]
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal National Mortgage Association [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-116.36%		-111.89%
TBA - Fixed Rate Agency Securities Sold Short [Member] | Federal Home Loan Mortgage Corporation [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-24.40%		-17.80%
TBA - Fixed Rate Agency Securities Sold Short [Member] | Government National Mortgage Association [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-1.94%		'
Government debt sold short [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-5.38%	[2],[3],[4]	-4.36%	[2],[3],[6]
Investments sold short, at fair value-	-43,646	[3],[4]	-27,288	[3],[6]
Proceeds from investments sold short	-44,034	[3],[4]	-27,532	[3],[6]
Government debt sold short [Member] | US Treasury Bond Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-8	[3],[4]	'
Description	'U.S. Treasury Bond	[3],[4]	'
Rate	3.13%	[3],[4]	'
Investments maturity date	'2044-08	[3],[4]	'
Investments sold short, at fair value-	-7,550	[3],[4]	'
Government debt sold short [Member] | Sovereign Debt Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-21,367	[3],[4]	-7,337	[3],[6]
Description	'European Sovereign Bonds	[3],[4]	'European Sovereign Bond	[3],[6]
Rate	'		3.75%	[3],[6]
Investments maturity date	'		'2018-10	[3],[6]
Investments sold short, at fair value-	-23,707	[3],[4]	-7,681	[3],[6]
Government debt sold short [Member] | US Treasury Notes Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Current Principal/Notional Amount	-12,500	[3],[4]	-20,000	[3],[6]
Description	'U.S. Treasury Note	[3],[4]	'U.S. Treasury Note	[3],[6]
Rate	'		1.25%	[3],[6]
Investments maturity date	'		'2018-10	[3],[6]
Investments sold short, at fair value-	-12,389	[3],[4]	-19,607	[3],[6]
Common Stock Sold Short [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-2.38%	[2],[3],[4]	-1.02%	[2],[3],[6]
Investments sold short, at fair value-	-19,356	[3],[4]	-6,369	[3],[6]
Proceeds from investments sold short	-20,838	[3],[4]	-6,313	[3],[6]
Common Stock Sold Short [Member] | Publicly Traded Real Estate Investment Trusts [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Description	'Publicly Traded Real Estate Investment Trusts	[3],[4]	'Publicly Traded Real Estate Investment Trusts	[3],[6]
Investments sold short, at fair value-	-19,356	[3],[4]	-6,369	[3],[6]
Investment Sold, Not yet Purchased, Balance, Shares	-2,113	[3],[4]	-763	[3],[6]
Securities Sold Short - Securities Sold, Not Yet Purchased [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-150.46%	[2],[3],[4]	-135.07%	[2],[3],[6]
Investments sold short, at fair value-	-1,221,894	[3],[4]	-845,614	[3],[6]
Proceeds from investments sold short	-1,223,043	[3],[4]	-847,602	[3],[6]
Minimum [Member] | TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal Home Loan Mortgage Corporation (30 year) 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	'		2.50%	[3],[6],[7]
Minimum [Member] | Government debt sold short [Member] | Sovereign Debt Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	2.75%	[3],[4]	'
Investments maturity date	'2018-10	[3],[4]	'
Minimum [Member] | Government debt sold short [Member] | US Treasury Notes Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	1.25%	[3],[4]	'
Investments maturity date	'2018-10	[3],[4]	'
Maximum [Member] | TBA - Fixed Rate Agency Securities Sold Short [Member] | Other Federal Home Loan Mortgage Corporation (30 year) 2014-01 [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	'		5.50%	[3],[6],[7]
Maximum [Member] | Government debt sold short [Member] | Sovereign Debt Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	3.75%	[3],[4]	'
Investments maturity date	'2019-04	[3],[4]	'
Maximum [Member] | Government debt sold short [Member] | US Treasury Notes Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Rate	1.63%	[3],[4]	'
Investments maturity date	'2019-08	[3],[4]	'
Europe [Member] | Securities Sold Short - Securities Sold, Not Yet Purchased [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	'		-1.23%
Current Principal/Notional Amount	'		-7,337
Investments sold short, at fair value-	'		-7,681
Proceeds from investments sold short	'		-7,633
Europe [Member] | Sovereign Debt Securities [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-2.92%		'
Current Principal/Notional Amount	-21,367		'
Investments sold short, at fair value-	-23,707		'
Proceeds from investments sold short	-24,110		'
North America [Member] | Common Stock Sold Short [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-2.38%		-1.02%
Investments sold short, at fair value-	-19,356		-6,369
Investment Sold, Not yet Purchased, Balance, Shares	-2,113		-763
Proceeds from investments sold short	-20,838		-6,313
North America [Member] | Securities Sold Short - Securities Sold, Not Yet Purchased [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	'		-132.82%
Current Principal/Notional Amount	'		-804,888
Investments sold short, at fair value-	'		-831,564
Proceeds from investments sold short	'		-833,656
North America [Member] | Securities Sold Short Securities Sold Not Yet Purchased TBAs and Government Debt [Member]	'		'
Investments Sold, Not yet Purchased [Line Items]	'		'
Investment Sold, Not yet Purchased, Percent of Equity	-145.16%		'
Current Principal/Notional Amount	-1,121,387		'
Investments sold short, at fair value-	-1,178,831		'
Proceeds from investments sold short	($1,178,095)		'
[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]	Classification percentages are based on Total Equity.
[3]	See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[4]	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)%
[5]	At September 30, 2014, the Company's short investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 116.36%, 24.40%, and 1.94% of equity, respectively.
[6]	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 %
[7]	At December 31, 2013, the Company's short investments guaranteed by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation represented 111.89% and 17.80% of equity, respectively.

Consolidated_Condensed_Schedul3

Consolidated Condensed Schedule Of Investments (Financial Derivatives) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
	contracts		contracts
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset	$56,366,000	[1]	$59,664,000	[1]
Derivative Liabilities	-47,331,000	[1]	-44,791,000	[1]
Net cost	45,074,000		50,533,000
Net proceeds	-33,950,000		-29,746,000
Index multiplier	50		'
Eurodollar Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Future contract notional	1,000,000		1,000,000
Future contract	1		1
Long US Treasury Note Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Number of contracts	1,934		1,847
Short US Treasury Note Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Number of contracts	29		'
Financial Derivatives - Assets [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset, Notional Amount	625,805,000		'
Derivative Asset	56,366,000	[2],[3]	59,664,000	[2],[4]
Investment owned as a percentage of equity	6.94%	[2],[3],[5]	9.53%	[2],[4],[5]
Net cost	45,074,000	[2],[3]	50,533,000	[2],[4]
Financial Derivatives - Assets [Member] | Long Credit Default Swap On Asset Backed Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[3],[6]	'Credit	[2],[4],[7]
Derivative Asset, Notional Amount	1,789,000	[2],[3],[6]	1,990,000	[2],[4],[7]
Range of expiration dates	'2037-12	[2],[3],[6]	'2037-12	[2],[4],[7]
Derivative Asset	57,000	[2],[3],[6]	61,000	[2],[4],[7]
Net proceeds	217,000	[2],[3],[6]	-217,000	[2],[4],[7]
Financial Derivatives - Assets [Member] | Long Credit Default Swap On Corporate Bond Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[3],[6]	'Credit	[2],[4],[8]
Derivative Asset, Notional Amount	114,693,000	[2],[3],[6]	70,425,000	[2],[4],[8]
Range of expiration dates	'		'2018-12	[2],[4],[8]
Derivative Asset	20,044,000	[2],[3],[6]	14,273,000	[2],[4],[8]
Net cost	19,410,000	[2],[3],[6]	13,248,000	[2],[4],[8]
Financial Derivatives - Assets [Member] | Long Credit Default Swap On Corporate Bond Indices [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2018-12	[2],[3],[6]	'
Financial Derivatives - Assets [Member] | Long Credit Default Swap On Corporate Bond Indices [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-06	[2],[3],[6]	'
Financial Derivatives - Assets [Member] | Long Interest Rate Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[3],[9]	'Interest Rates	[2],[4],[9]
Derivative Asset, Notional Amount	682,994,000	[2],[3],[9]	153,100,000	[2],[4],[9]
Derivative Asset	8,446,000	[2],[3],[9]	1,978,000	[2],[4],[9]
Financial Derivatives - Assets [Member] | Long Interest Rate Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-09	[2],[3],[9]	'2018-07	[2],[4],[9]
Financial Derivatives - Assets [Member] | Long Interest Rate Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2044-09	[2],[3],[9]	'2023-09	[2],[4],[9]
Financial Derivatives - Assets [Member] | Long Total Return Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Equity Market	[10],[2],[4]
Derivative Asset, Notional Amount	'		3,044,000	[10],[2],[4]
Derivative Asset	'		4,000	[10],[2],[4]
Financial Derivatives - Assets [Member] | Long Total Return Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'		'2014-06	[10],[2],[4]
Financial Derivatives - Assets [Member] | Long Total Return Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'		'2015-06	[10],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Securities [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'Credit	[12],[2],[4]
Derivative Asset, Notional Amount	-18,892,000	[11],[2],[3]	-23,426,000	[12],[2],[4]
Derivative Asset	12,788,000	[11],[2],[3]	16,646,000	[12],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Securities [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2034-09	[11],[2],[3]	'2034-09	[12],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Securities [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2036-05	[11],[2],[3]	'2036-05	[12],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'Credit	[13],[2],[4]
Derivative Asset, Notional Amount	-66,061,000	[11],[2],[3]	-72,422,000	[13],[2],[4]
Derivative Asset	2,247,000	[11],[2],[3]	4,876,000	[13],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Indices [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2046-05	[11],[2],[3]	'2046-05	[13],[2],[4]
Financial Derivatives - Assets [Member] | Short Credit Default Swap On Asset Backed Indices [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2063-05	[11],[2],[3]	'2063-05	[13],[2],[4]
Financial Derivatives - Assets [Member] | Short Interest Rate Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[14],[2],[3]	'Interest Rates	[14],[2],[4]
Derivative Asset, Notional Amount	-1,059,638,000	[14],[2],[3]	-840,600,000	[14],[2],[4]
Derivative Asset	11,518,000	[14],[2],[3]	21,575,000	[14],[2],[4]
Financial Derivatives - Assets [Member] | Short Interest Rate Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-02	[14],[2],[3]	'2016-11	[14],[2],[4]
Financial Derivatives - Assets [Member] | Short Interest Rate Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2044-09	[14],[2],[3]	'2043-08	[14],[2],[4]
Financial Derivatives - Assets [Member] | Short Total Return Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Equity Market	[10],[2],[3]	'Equity Market	[10],[2],[4]
Derivative Asset, Notional Amount	-3,065,000	[10],[2],[3]	-23,000	[10],[2],[4]
Range of expiration dates	'		'2015-09	[10],[2],[4]
Derivative Asset	29,000	[10],[2],[3]	0	[10],[2],[4]
Financial Derivatives - Assets [Member] | Short Total Return Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-10	[10],[2],[3]	'
Financial Derivatives - Assets [Member] | Short Total Return Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2018-10	[10],[2],[3]	'
Financial Derivatives - Assets [Member] | Swap [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset	55,129,000	[2],[3]	59,413,000	[2],[4]
Investment owned as a percentage of equity	6.79%	[2],[3],[5]	9.49%	[2],[4],[5]
Net cost	45,042,000	[2],[3]	50,039,000	[2],[4]
Financial Derivatives - Assets [Member] | Long US Treasury Note Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[15],[2],[3]	'
Derivative Asset, Notional Amount	242,100,000	[15],[2],[3]	'
Range of expiration dates	'2014-12	[15],[2],[3]	'
Derivative Asset	477,000	[15],[2],[3]	'
Financial Derivatives - Assets [Member] | Long Eurodollar Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[16],[2],[3]	'
Derivative Asset, Notional Amount	18,000,000	[16],[2],[3]	'
Range of expiration dates	'2014-12	[16],[2],[3]	'
Derivative Asset	0	[16],[2],[3]	'
Financial Derivatives - Assets [Member] | Short Eurodollar Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[16],[2],[3]	'
Derivative Asset, Notional Amount	-186,000,000	[16],[2],[3]	'
Derivative Asset	65,000	[16],[2],[3]	'
Financial Derivatives - Assets [Member] | Short Eurodollar Future [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2015-09	[16],[2],[3]	'
Financial Derivatives - Assets [Member] | Short Eurodollar Future [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-12	[16],[2],[3]	'
Financial Derivatives - Assets [Member] | Short Equity Index Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[17],[2],[3]	'
Derivative Asset, Notional Amount	-2,850,000	[17],[2],[3]	'
Range of expiration dates	'2014-12	[17],[2],[3]	'
Derivative Asset	7,000	[17],[2],[3]	'
Financial Derivatives - Assets [Member] | Purchased Options on Eurodollar Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[18],[2],[3]	'
Derivative Asset, Notional Amount	150,000,000	[18],[2],[3]	'
Range of expiration dates	'2015-03	[18],[2],[3]	'
Derivative Asset	31,000	[18],[2],[3]	'
Financial Derivatives - Assets [Member] | Option on CDS on Corporate Bond Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Credit	[19],[2],[4]
Derivative Asset, Notional Amount	'		22,588,000	[19],[2],[4]
Range of expiration dates	'		'2014-06	[19],[2],[4]
Derivative Asset	'		190,000	[19],[2],[4]
Financial Derivatives - Assets [Member] | Interest Rate Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Interest Rates	[2],[20],[4]
Derivative Asset, Notional Amount	'		15,000,000	[2],[20],[4]
Range of expiration dates	'		'2014-04	[2],[20],[4]
Derivative Asset	'		61,000	[2],[20],[4]
Financial Derivatives - Assets [Member] | Payer Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[20],[3]	'
Derivative Asset, Notional Amount	774,000,000	[2],[20],[3]	'
Derivative Asset	261,000	[2],[20],[3]	'
Financial Derivatives - Assets [Member] | Payer Swaption [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-02	[2],[20],[3]	'
Financial Derivatives - Assets [Member] | Payer Swaption [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-03	[2],[20],[3]	'
Financial Derivatives - Assets [Member] | Options [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset	292,000	[2],[3]	251,000	[2],[4]
Investment owned as a percentage of equity	0.03%	[2],[3],[5]	0.04%	[2],[4],[5]
Net cost	32,000	[2],[3]	494,000	[2],[4]
Financial Derivatives - Assets [Member] | Long Currency Forward [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Currency	[2],[21],[3]	'
Derivative Asset, Notional Amount	-21,265,000	[2],[21],[3]	'
Range of expiration dates	'2014-12	[2],[21],[3]	'
Derivative Asset	396,000	[2],[21],[3]	'
Financial Derivatives - Assets [Member] | Forwards [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset	396,000	[2],[3]	'
Investment owned as a percentage of equity	0.05%	[2],[3],[5]	'
Financial Derivatives - Assets [Member] | Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset	549,000	[2],[3]	'
Investment owned as a percentage of equity	0.07%	[2],[3],[5]	'
Financial Derivatives - Liabilities [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liability, Notional Amount	-634,575,000		'
Derivative Liabilities	-47,331,000	[2],[3]	-44,791,000	[2],[4]
Investment owned as a percentage of equity	-5.83%	[2],[3],[5]	-7.16%	[2],[4],[5]
Net proceeds	-33,950,000	[2],[3]	-29,746,000	[2],[4]
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Asset Backed Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[3],[6]	'Credit	[2],[4],[7]
Derivative Liability, Notional Amount	14,770,000	[2],[3],[6]	44,082,000	[2],[4],[7]
Derivative Liabilities	-4,311,000	[2],[3],[6]	-11,866,000	[2],[4],[7]
Net proceeds	-5,461,000	[2],[3],[6]	-14,331,000	[2],[4],[7]
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Asset Backed Indices [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2047-01	[2],[3],[6]	'2049-12	[2],[4],[7]
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Asset Backed Indices [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2052-10	[2],[3],[6]	'2052-10	[2],[4],[7]
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Corporate Bond Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[3],[6]	'Credit	[2],[4],[8]
Derivative Liability, Notional Amount	3,756,000	[2],[3],[6]	4,000,000	[2],[4],[8]
Range of expiration dates	'2017-12	[2],[3],[6]	'2017-12	[2],[4],[8]
Derivative Liabilities	-1,166,000	[2],[3],[6]	-1,047,000	[2],[4],[8]
Net proceeds	-1,200,000	[2],[3],[6]	-1,200,000	[2],[4],[8]
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Corporate Bonds [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[3],[6]	'
Derivative Liability, Notional Amount	5,005,000	[2],[3],[6]	'
Derivative Liabilities	-2,583,000	[2],[3],[6]	'
Net proceeds	-1,968,000	[2],[3],[6]	'
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Corporate Bonds [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-06	[2],[3],[6]	'
Financial Derivatives - Liabilities [Member] | Long Credit Default Swap On Corporate Bonds [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-12	[2],[3],[6]	'
Financial Derivatives - Liabilities [Member] | Long Interest Rate Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[3],[9]	'Interest Rates	[2],[4],[9]
Derivative Liability, Notional Amount	438,894,000	[2],[3],[9]	234,600,000	[2],[4],[9]
Derivative Liabilities	-1,141,000	[2],[3],[9]	-2,857,000	[2],[4],[9]
Financial Derivatives - Liabilities [Member] | Long Interest Rate Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-07	[2],[3],[9]	'2017-10	[2],[4],[9]
Financial Derivatives - Liabilities [Member] | Long Interest Rate Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2044-10	[2],[3],[9]	'2043-07	[2],[4],[9]
Financial Derivatives - Liabilities [Member] | Long Total Return Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Equity Market	[10],[2],[3]	'Equity Market	[10],[2],[4]
Derivative Liability, Notional Amount	76,371,000	[10],[2],[3]	47,974,000	[10],[2],[4]
Range of expiration dates	'		'2015-06	[10],[2],[4]
Derivative Liabilities	-40,000	[10],[2],[3]	0	[10],[2],[4]
Financial Derivatives - Liabilities [Member] | Long Total Return Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2018-06	[10],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Long Total Return Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-10	[10],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Short Credit Default Swap On Asset Backed Securities [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'Credit	[12],[2],[4]
Derivative Liability, Notional Amount	-3,000,000	[11],[2],[3]	-3,000,000	[12],[2],[4]
Range of expiration dates	'2035-03	[11],[2],[3]	'2035-03	[12],[2],[4]
Derivative Liabilities	-378,000	[11],[2],[3]	-350,000	[12],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Credit Default Swap On Asset Backed Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'
Derivative Liability, Notional Amount	-16,250,000	[11],[2],[3]	'
Range of expiration dates	'2063-05	[11],[2],[3]	'
Derivative Liabilities	-74,000	[11],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'Credit	[2],[22],[4]
Derivative Liability, Notional Amount	-284,577,000	[11],[2],[3]	-337,815,000	[2],[22],[4]
Derivative Liabilities	-22,463,000	[11],[2],[3]	-23,902,000	[2],[22],[4]
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps On Corporate Bond Indices [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2016-12	[11],[2],[3]	'2016-12	[2],[22],[4]
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps On Corporate Bond Indices [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-06	[11],[2],[3]	'2018-12	[2],[22],[4]
Financial Derivatives - Liabilities [Member] | Short Interest Rate Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[14],[2],[3]	'Interest Rates	[14],[2],[4]
Derivative Liability, Notional Amount	-1,098,816,000	[14],[2],[3]	-323,800,000	[14],[2],[4]
Derivative Liabilities	-14,625,000	[14],[2],[3]	-2,207,000	[14],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Interest Rate Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2015-03	[14],[2],[3]	'2015-03	[14],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Interest Rate Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2044-09	[14],[2],[3]	'2043-09	[14],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Total Return Swaps [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Equity Market	[10],[2],[3]	'Equity Market	[10],[2],[4]
Derivative Liability, Notional Amount	-7,051,000	[10],[2],[3]	-10,374,000	[10],[2],[4]
Range of expiration dates	'2018-10	[10],[2],[3]	'
Derivative Liabilities	0	[10],[2],[3]	-67,000	[10],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Total Return Swaps [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'		'2014-09	[10],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Total Return Swaps [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'		'2015-09	[10],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps on Corporate Bonds [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[11],[2],[3]	'
Derivative Liability, Notional Amount	-2,475,000	[11],[2],[3]	'
Derivative Liabilities	-112,000	[11],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps on Corporate Bonds [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-06	[11],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Short Credit Default Swaps on Corporate Bonds [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2019-09	[11],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Swap [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liabilities	-46,893,000	[2],[3]	-42,296,000	[2],[4]
Investment owned as a percentage of equity	-5.77%	[2],[3],[5]	-6.76%	[2],[4],[5]
Net proceeds	-33,692,000	[2],[3]	-29,746,000	[2],[4]
Financial Derivatives - Liabilities [Member] | Long US Treasury Note Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Interest Rates	[2],[23],[4]
Derivative Liability, Notional Amount	'		227,200,000	[2],[23],[4]
Range of expiration dates	'		'2014-03	[2],[23],[4]
Derivative Liabilities	'		-2,370,000	[2],[23],[4]
Financial Derivatives - Liabilities [Member] | Long Eurodollar Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[16],[2],[3]	'
Derivative Liability, Notional Amount	91,000,000	[16],[2],[3]	'
Derivative Liabilities	-22,000	[16],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Long Eurodollar Future [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-03	[16],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Long Eurodollar Future [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-06	[16],[2],[3]	'
Financial Derivatives - Liabilities [Member] | Short Eurodollar Future [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[16],[2],[3]	'Interest Rates	[16],[2],[4]
Derivative Liability, Notional Amount	-143,000,000	[16],[2],[3]	-14,000,000	[16],[2],[4]
Derivative Liabilities	-39,000	[16],[2],[3]	-3,000	[16],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Eurodollar Future [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2015-03	[16],[2],[3]	'2014-03	[16],[2],[4]
Financial Derivatives - Liabilities [Member] | Short Eurodollar Future [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2015-06	[16],[2],[3]	'2015-09	[16],[2],[4]
Financial Derivatives - Liabilities [Member] | Option on CDS on Corporate Bond Indices [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Credit	[2],[24],[3]	'
Derivative Liability, Notional Amount	-59,202,000	[2],[24],[3]	'
Derivative Liabilities	-158,000	[2],[24],[3]	'
Financial Derivatives - Liabilities [Member] | Option on CDS on Corporate Bond Indices [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2014-10	[2],[24],[3]	'
Financial Derivatives - Liabilities [Member] | Option on CDS on Corporate Bond Indices [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2014-11	[2],[24],[3]	'
Financial Derivatives - Liabilities [Member] | Written Options on Eurodollar Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[25],[3]	'
Derivative Liability, Notional Amount	-150,000,000	[2],[25],[3]	'
Range of expiration dates	'2015-03	[2],[25],[3]	'
Derivative Liabilities	-6,000	[2],[25],[3]	'
Financial Derivatives - Liabilities [Member] | Interest Rate Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Interest Rates	[2],[26],[4]
Derivative Liability, Notional Amount	'		-4,000,000	[2],[26],[4]
Range of expiration dates	'		'2014-04	[2],[26],[4]
Derivative Liabilities	'		-84,000	[2],[26],[4]
Financial Derivatives - Liabilities [Member] | Straddle Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[27],[3]	'
Derivative Liability, Notional Amount	-34,000,000	[2],[27],[3]	'
Range of expiration dates	'2025-09	[2],[27],[3]	'
Derivative Liabilities	-25,000	[2],[27],[3]	'
Financial Derivatives - Liabilities [Member] | Payer Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[20],[3]	'
Derivative Liability, Notional Amount	504,000,000	[2],[20],[3]	'
Derivative Liabilities	-109,000	[2],[20],[3]	'
Financial Derivatives - Liabilities [Member] | Payer Swaption [Member] | Minimum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-01	[2],[20],[3]	'
Financial Derivatives - Liabilities [Member] | Payer Swaption [Member] | Maximum [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Range of expiration dates	'2017-02	[2],[20],[3]	'
Financial Derivatives - Liabilities [Member] | Purchased Straddle Swaption [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'Interest Rates	[2],[28],[3]	'
Derivative Liability, Notional Amount	30,000,000	[2],[28],[3]	'
Range of expiration dates	'2029-05	[2],[28],[3]	'
Derivative Liabilities	-79,000	[2],[28],[3]	'
Financial Derivatives - Liabilities [Member] | Options [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liabilities	-377,000	[2],[3]	-84,000	[2],[4]
Investment owned as a percentage of equity	-0.05%	[2],[3],[5]	-0.01%	[2],[4],[5]
Net proceeds	-258,000	[2],[3]	'
Financial Derivatives - Liabilities [Member] | Forwards [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liabilities	'		-38,000	[2],[4]
Investment owned as a percentage of equity	'		-0.01%	[2],[4],[5]
Financial Derivatives - Liabilities [Member] | Short Currency Forward [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Primary risk exposure	'		'Currency	[2],[4]
Derivative Liability, Notional Amount	'		-6,575,000	[2],[4]
Range of expiration dates	'		'2014-03	[2],[4]
Derivative Liabilities	'		-38,000	[2],[4]
Financial Derivatives - Liabilities [Member] | Futures [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liabilities	-61,000	[2],[3]	-2,373,000	[2],[4]
Investment owned as a percentage of equity	-0.01%	[2],[3],[5]	-0.38%	[2],[4],[5]
North America [Member] | Financial Derivatives - Assets [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset, Notional Amount	634,538,000		'
Derivative Asset	56,365,000		'
Investment owned as a percentage of equity	6.94%		'
Net cost	45,074,000		'
North America [Member] | Financial Derivatives - Liabilities [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liability, Notional Amount	-617,900,000		'
Derivative Liabilities	-45,569,000		'
Investment owned as a percentage of equity	-5.61%		'
Net proceeds	-32,133,000		'
Europe [Member] | Financial Derivatives - Assets [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Asset, Notional Amount	-8,733,000		'
Derivative Asset	1,000		'
Investment owned as a percentage of equity	0.00%		'
Net cost	0		'
Europe [Member] | Financial Derivatives - Liabilities [Member]	'		'
Investment Holdings, Other than Securities [Line Items]	'		'
Derivative Liability, Notional Amount	-16,675,000		'
Derivative Liabilities	-1,762,000		'
Investment owned as a percentage of equity	-0.22%		'
Net proceeds	($1,817,000)		'
[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, 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.
[6]	For long credit default swaps, the Company sold protection.
[7]	For long credit default swaps on asset-backed indices, the Company sold protection.
[8]	For long credit default swaps on corporate bond indices, the Company sold protection.
[9]	For long interest rate swap contracts, a floating rate is being paid and a fixed rate is being received.
[10]	Notional value represents number of underlying shares times the closing price of the underlying security.
[11]	For short credit default swaps, the Company purchased protection.
[12]	For short credit default swaps on asset-backed securities, the Company purchased protection.
[13]	For short credit default swaps on asset-backed indices, the Company purchased protection.
[14]	For short interest rate swap contracts, a fixed rate is being paid and a floating rate is being received.
[15]	Notional value represents the total face amount of U.S. Treasury Notes underlying all contracts held; as of September 30, 2014, 1,934 contracts were held.
[16]	Every $1,000,000 in notional value represents one contract.
[17]	Notional value represents the number of contracts held times 50 times the Index price at September 30, 2014; as of September 30, 2014, 29 contracts were held.
[18]	Represents the option on the part of the Company to enter into a futures contract with a counterparty. Every $1,000,000 in notional value represents one contract.
[19]	Represents the option on the part of the Company to enter into a credit default swap on a corporate bond index whereby the Company would pay a fixed rate and receive credit protection payments.
[20]	Represents the option on the part of the Company to enter into an interest rate swap whereby the Company would pay a fixed rate and receive a floating rate.
[21]	Notional amount represents U.S. Dollars to be received by the Company at the maturity of the forward contract.
[22]	For short credit default swaps on corporate bond indices, the Company purchased protection.
[23]	Notional value represents the total face amount of U.S. Treasury Notes underlying all contracts held; as of December 31, 2013 1,847 contracts were held.
[24]	Represents the option on the part of a counterparty to enter into a credit default swap on a corporate bond index whereby the Company would receive a fixed rate and pay credit protection payments.
[25]	Represents the option on the part of a counterparty to enter into a futures contract with the Company. Every $1,000,000 in notional value represents one contract.
[26]	Represents the option on the part of a counterparty to enter into an interest rate swap with the Company whereby the Company would receive a fixed rate and pay a floating rate.
[27]	Represents the combination of a written payer swaption and a written receiver swaption on the same underlying swap.
[28]	Represents the combination of a purchased payer swaption and a purchased receiver swaption on the same underlying swap.

Consolidated_Statement_Of_Oper

Consolidated Statement Of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INVESTMENT INCOME	'	'	'	'
Interest income	$22,521	$24,069	$65,014	$62,786
EXPENSES	'	'	'	'
Base management fee	3,056	2,378	7,789	6,751
Incentive fee	1,400	2,038	1,400	5,275
Interest expense	2,179	3,277	7,222	8,001
Other investment related expenses	1,184	85	2,846	412
Compensation expense	358	523	1,030	1,283
Custody and other fees	560	355	1,411	1,010
Professional fees	553	436	1,772	1,214
Agency and administration fees	306	295	893	838
Insurance expense	191	176	573	529
Directors' fees and expenses	70	57	200	200
Share-based LTIP expense	65	43	191	129
Total expenses	9,922	9,663	25,327	25,642
NET INVESTMENT INCOME	12,599	14,406	39,687	37,144
Net realized gain (loss) on:	'	'	'	'
Investments	2,449	10,731	16,887	35,326
Financial derivatives	-9,477	-6,442	-9,075	-12,774
Foreign currency transactions	-1,455	0	-1,202	0
Total net realized gain (loss) on investments, financial derivatives, and foreign currency transactions	-8,483	4,289	6,610	22,552
Change in net unrealized gain (loss) on:	'	'	'	'
Investments	-2,560	-4,867	7,096	-10,000
Financial derivatives	12,056	-2,005	3,845	14,578
Foreign currency translation	-465	0	-48	0
Total Net Unrealized Gain Loss On Investments, Financial derivatives, and Foreign currency translation	9,031	-6,872	10,893	4,578
NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY TRANSACTIONS/TRANSLATION	548	-2,583	17,503	27,130
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	13,147	11,823	57,190	64,274
Net Income (Loss) Attributable to Noncontrolling Interest	199	96	660	612
Net Income (Loss) Attributable to Parent	$12,948	$11,727	$56,530	$63,662
NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS PER SHARE:	'	'	'	'
Basic and Diluted (in usd per share)	$0.46	$0.45	$2.13	$2.73

Consolidated_Statement_Of_Chan

Consolidated Statement Of Changes In Equity (USD $)		Total		Parent [Member]	Noncontrolling Interest [Member]
In Thousands, unless otherwise specified
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2012		$506,355		'	'
Stockholders' Equity Attributable to Noncontrolling Interest at Dec. 31, 2012		'		'	0
Stockholders' Equity Attributable to Parent at Dec. 31, 2012		'		506,355	'
CHANGE IN SHAREHOLDERS’ EQUITY RESULTING FROM OPERATIONS		'		'	'
Net investment income		37,144		'	'
Net realized gain (loss) on investments, financial derivatives, and foreign currency transactions		22,552		'	'
Total Net Unrealized Gain Loss On Investments, Financial derivatives, and Foreign currency translation		4,578		'	'
Net Income (Loss) Attributable to Parent		63,662		63,662	'
Net Income (Loss) Attributable to Noncontrolling Interest		612		'	612
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		64,274		'	'
CHANGE IN EQUITY RESULTING FROM TRANSACTIONS		'		'	'
Proceeds from the issuance of shares	[1]	125,600		125,600	'
Shares issued in connection with incentive fee payment		1,058		1,058	'
Noncontrolling Interest, Increase from Sale of Parent Equity Interest		4,664		'	4,664
Dividends	[2]	-72,016	[3]	-71,368	-648
Distributions to non-controlling interest		0		'	0
Adjustments to non-controlling interests		0		0	0
Offering costs		-262		-262	'
Share-based LTIP awards		129		128	1
Net increase (decrease) in equity from transactions		59,173		55,156	4,017
Net increase in equity		123,447		118,818	4,629
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Sep. 30, 2013		629,802		'	'
Stockholders' Equity Attributable to Noncontrolling Interest at Sep. 30, 2013		'		'	4,629
Stockholders' Equity Attributable to Parent at Sep. 30, 2013		'		625,173	'
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2013		626,049		'	'
Stockholders' Equity Attributable to Noncontrolling Interest at Dec. 31, 2013		5,648		'	5,648
Stockholders' Equity Attributable to Parent at Dec. 31, 2013		620,401		620,401	'
CHANGE IN SHAREHOLDERS’ EQUITY RESULTING FROM OPERATIONS		'		'	'
Net investment income		39,687		'	'
Net realized gain (loss) on investments, financial derivatives, and foreign currency transactions		6,610		'	'
Total Net Unrealized Gain Loss On Investments, Financial derivatives, and Foreign currency translation		10,893		'	'
Net Income (Loss) Attributable to Parent		56,530		56,530	'
Net Income (Loss) Attributable to Noncontrolling Interest		660		'	660
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		57,190		'	'
CHANGE IN EQUITY RESULTING FROM TRANSACTIONS		'		'	'
Proceeds from the issuance of shares	[1]	188,400		188,400	'
Shares issued in connection with incentive fee payment		309		309	'
Noncontrolling Interest, Increase from Sale of Parent Equity Interest		1,524		'	1,524
Dividends	[2]	-60,210	[3]	-59,720	-490
Distributions to non-controlling interest		-1,099		'	-1,099
Adjustments to non-controlling interests		0		-486	486
Offering costs		-247		-247	'
Share-based LTIP awards		191		190	1
Net increase (decrease) in equity from transactions		128,868		128,446	422
Net increase in equity		186,058		184,976	1,082
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Sep. 30, 2014		812,107		'	'
Stockholders' Equity Attributable to Noncontrolling Interest at Sep. 30, 2014		6,730		'	6,730
Stockholders' Equity Attributable to Parent at Sep. 30, 2014		$805,377		$805,377	'
[1]	For the nine month period ended September 30, 2014 proceeds from the issuance of shares is net of an underwriters' discount of $3.0 million.
[2]	For the nine month periods ended September 30, 2014 and 2013, dividends totaling $2.31 and $3.06, respectively, per common share and convertible unit outstanding, were declared and paid.
[3]	The Company pays quarterly dividends in arrears, so a portion of the dividends paid in each calendar year relate to the prior year's earnings.

Consolidated_Statement_Of_Chan1

Consolidated Statement Of Changes In Equity (Parenthetical) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Statement of Stockholders' Equity [Abstract]	'	'
Underwriting discount	$3	'
Dividends (in usd per share)	$2.31	$3.06

Consolidated_Statement_Of_Cash

Consolidated Statement Of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS:	'	'
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$57,190	$64,274
Reconciliation of the net increase in equity resulting from operations to net cash provided by (used in) operating activities:	'	'
Change in net unrealized (gain) loss on investments and financial derivatives, and foreign currency translation	-10,678	-4,578
Net realized (gain) loss on investments, financial derivatives, and foreign currency transactions	-8,115	-22,552
Amortization of premiums and accretion of discounts (net)	-6,036	-15,485
Purchase of investments	-2,899,745	-1,763,022
Proceeds from disposition of investments	2,118,261	1,166,380
Proceeds from principal payments of investments	135,376	145,570
Proceeds from investments sold short	1,429,501	905,142
Repurchase of investments sold short	-1,087,703	-652,073
Payments made to open financial derivatives	-18,692	-11,720
Proceeds received to close financial derivatives	41,677	35,406
Proceeds received to open financial derivatives	43,471	27,986
Payments made to close financial derivatives	-65,865	-26,686
Shares issued in connection with incentive fee payment	309	1,058
Share-based LTIP expense	191	129
(Increase) decrease in assets:	'	'
Increase in repurchase agreements	-19,077	-27,344
Increase in receivable for securities sold	-363,200	-299,719
Increase in due from brokers	-58,926	-42,415
Increase in interest and principal receivable	-4,122	-972
Increase in other assets	-1,182	-713
Increase (decrease) in liabilities:	'	'
Decrease in due to brokers	-7,752	-17,214
Increase in payable for securities purchased	383,408	173,317
Increase in accounts payable and accrued expenses	440	262
Decrease in incentive fee payable	-1,691	-5,305
Increase (decrease) in other payables	0	-396
Increase in interest and dividends payable	617	768
Increase in base management fee payable	692	444
Net cash used in operating activities	-341,651	-369,458
Cash flows provided by (used in) financing activities:	'	'
Proceeds from the issuance of shares	188,400	125,600
Contribution from non-controlling interest	1,524	4,664
Offering costs paid	-151	-350
Dividends paid	-60,210	-72,016
Distributions to non-controlling Interest	-1,099	0
Principal payments on securitized debt	-144	-292
Reverse repurchase agreements, net of repayments	158,966	439,505
Net cash provided by financing activities	287,286	497,111
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-54,365	127,653
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	183,489	59,084
CASH AND CASH EQUIVALENTS, END OF PERIOD	129,124	186,737
Supplemental disclosure of cash flow information:	'	'
Interest paid	7,110	7,217
Shares issued in connection with incentive fee payment (non-cash)	309	1,058
Share-based LTIP awards (non-cash)	191	129
Aggregate TBA trade activity (buys sells) (non-cash)	$20,616,947	$16,476,137

Organization_and_Investment_Ob

Organization and Investment Objective	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization and Investment Objective	'
	Organization and Investment Objective
	Ellington Financial LLC was formed as a Delaware limited liability company on July 9, 2007 and commenced operations on August 17, 2007. Ellington Financial Operating Partnership LLC (the "Operating Partnership"), a 99.4% owned consolidated subsidiary of Ellington Financial LLC, was formed as a Delaware limited liability company on December 14, 2012 and commenced operations on January 1, 2013. All of the Company's operations and business activities are conducted through the Operating Partnership. Ellington Financial LLC, the Operating Partnership, and their consolidated subsidiaries are hereafter collectively referred to as the "Company." All inter-company accounts are eliminated in consolidation.
	The Company is a specialty finance company that primarily acquires and manages mortgage-related assets, including residential mortgage-backed securities, or "RMBS," residential mortgage loans, commercial mortgage-backed securities, or "CMBS," commercial mortgage loans and other commercial real estate debt, real property and mortgage-related derivatives. The Company also invests in corporate debt and equity securities, asset-backed securities backed by consumer and commercial assets, or "ABS," non-mortgage-related derivatives and other financial assets.
	Ellington Financial Management LLC ("EFM" or the "Manager") is a registered investment adviser and a registered commodity pool operator that serves as the Manager to the Company pursuant to the terms of a management agreement (the "Management Agreement"). EFM is an affiliate of Ellington Management Group, L.L.C., an investment management firm that is registered as both an investment adviser and a commodity pool operator. In accordance with the terms of the Management Agreement, the Manager implements the investment strategy and manages the business and operations on a day-to-day basis for the Company and performs certain services for the Company, subject to oversight by the Board of Directors.

Significant_Accounting_Policie

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Significant Accounting Policies	'
	Significant Accounting Policies
	(A) Basis of Presentation: The Company's unaudited interim consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America, or "U.S. GAAP," for investment companies, ASC 946, Financial Services—Investment Companies ("ASC 946"). ASC 946 requires, among other things, that investments be reported at fair value in the financial statements. The consolidated financial statements include the accounts of the Company, the Operating Partnership, and its subsidiaries. All inter-company balances and transactions have been eliminated. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Interim results are not necessarily indicative of the results that may be expected for the entire fiscal year. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2013.
	(B) Valuation: The Company applies ASC 820-10, Fair Value Measurement and Disclosures ("ASC 820-10"), to its holdings of financial instruments. ASC 820-10 establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows:
	•	Level 1—inputs to the valuation methodology are observable and reflect quoted prices (unadjusted) for identical assets or liabilities in active markets,
	•	Level 2—inputs to the valuation methodology other than quoted prices included in Level 1 are observable for the asset or liability, either directly or indirectly, and
	•	Level 3—inputs to the valuation methodology are unobservable and significant to the fair value measurement.
	A financial instrument's categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in these securities.
	(C) Securities Transactions and Investment Income: Purchases and sales of investments are generally recorded on trade date. Realized and unrealized gains and losses are calculated based on identified cost. Interest income, which includes accretion of discounts and amortization of premiums on mortgage-backed securities, or "MBS," ABS, commercial and residential mortgage loans, U.S. Treasury securities, sovereign debt, and securitized debt, is recognized over the life of the investment using the effective interest method. For purposes of determining the effective interest rate, management estimates the future expected cash flows of its investment holdings based on assumptions including, but not limited to, assumptions for future prepayment rates, default rates and loss severities (each of which may in turn incorporate various macro-economic assumptions, such as future housing prices). These assumptions are re-evaluated not less than quarterly and require the use of a significant amount of judgment. Principal write-offs are generally treated as realized losses. The Company uses the cost recovery method for certain non-performing commercial and residential mortgage loans that have principal and/or interest payments that are more than 90 days past due and for which future cash flows are not estimable.
	(D) Cash and Cash Equivalents: Cash and cash equivalents include amounts held in an interest bearing overnight account and money market funds.
	(E) Financial Derivatives: The Company enters into various types of financial derivatives. The Company's derivatives are predominantly subject to bilateral collateral arrangements or clearing in accordance with the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. The Company may be required to deliver or receive cash or securities as collateral upon entering into derivative transactions. In addition, changes in the relative value of derivative transactions may require the Company or the counterparty to post or receive additional collateral. In the case of cleared derivatives, the clearinghouse becomes the Company's counterparty and a futures commission merchant, or "FCM," acts as an intermediary between the Company and the clearinghouse with respect to all facets of the related transaction, including the posting and receipt of required collateral. Cash collateral received by the Company is reflected on the Consolidated Statement of Assets, Liabilities, and Equity as "Due to Brokers." Conversely, cash collateral posted by the Company is reflected as "Due from Brokers" on the Consolidated Statement of Assets, Liabilities, and Equity. The major types of derivatives utilized by the Company are swaps, futures, options and swaptions, and forwards.
	Swaps: The Company may enter into various types of swaps, including interest rate swaps, credit default swaps, and total return swaps. The primary risk associated with the Company's interest rate swap activity is interest rate risk. The primary risk associated with the Company's credit default swaps is credit risk and the primary risk associated with the Company's total return swap activity is equity market risk.
	The Company is subject to interest rate risk exposure in the normal course of pursuing its investment objectives. Primarily to help mitigate interest rate risk, the Company enters into interest rate swaps. Interest rate swaps are contractual agreements whereby one party pays a floating rate of interest on a notional principal amount and receives a fixed rate on the same notional principal, or vice versa, for a fixed period of time. Interest rate swaps change in value with movements in interest rates.
	The Company enters into credit default swaps. A credit default swap is a contract under which one party agrees to compensate another party for the financial loss associated with the occurrence of a "credit event" in relation to a "reference amount" or notional value of a credit obligation (usually a bond, loan, or a basket of bonds or loans). The definition of a credit event often varies from contract to contract. A credit event may occur (i) when the underlying reference asset(s) fails to make scheduled principal or interest payments to its holders, (ii) with respect to credit default swaps referencing mortgage/asset-backed securities and indices, when the underlying reference obligation is downgraded below a certain rating level, or (iii) with respect to credit default swaps referencing corporate entities and indices, upon the bankruptcy of the underlying reference obligor. The Company typically writes (sells) protection to take a "long" position or purchases (buys) protection to take a "short" position with respect to underlying reference assets or to hedge exposure to other investment holdings.
	The Company enters into total return swaps in order to take a "long" or "short" position with respect to an underlying reference asset. The Company is subject to market price volatility of the underlying reference asset. A total return swap involves commitments to pay interest in exchange for a market-linked return based on a notional value. To the extent that the total return of the security, group of securities or index underlying the transaction exceeds or falls short of the offsetting interest obligation, the Company will receive a payment from or make a payment to the counterparty.
	Swaps change in value with movements in interest rates or total return of the reference securities. During the term of swap contracts, changes in value are recognized as unrealized gains or losses. When a contract is terminated, the Company realizes a gain or loss equal to the difference between the proceeds from (or cost of) the closing transaction and the Company's basis in the contract, if any. Periodic payments or receipts required by swap agreements are recorded as unrealized gains or losses when accrued and realized gains or losses when received or paid. Upfront payments paid and/or received by the Company to open swap contracts are recorded as an asset and/or liability on the Consolidated Statement of Assets, Liabilities, and Equity and are recorded as a realized gain or loss on the termination date.
	Futures Contracts: A futures contract is an exchange-traded agreement to buy or sell an asset for a set price on a future date. The Company enters into Eurodollar and/or U.S. Treasury Note futures contracts to hedge its interest rate risk. Initial margin deposits are made upon entering into futures contracts and can be either in the form of cash or securities. During the period the futures contract is open, changes in the value of the contract are recognized as unrealized gains or losses by marking-to-market to reflect the current market value of the contract. Variation margin payments are made or received periodically, depending upon whether unrealized losses or gains are incurred. When the contract is closed, the Company records a realized gain or loss equal to the difference between the proceeds of the closing transaction and the Company's basis in the contract.
	Options: The Company may purchase or write put or call options or enter into swaptions. Generally, the Company enters into options primarily to help mitigate overall market, credit, or interest rate risk depending on the type of option. When the Company purchases an option, the option asset is initially recorded at an amount equal to the premium paid, if any, and is subsequently marked-to-market. Premiums paid for purchasing options that expire unexercised are recognized on the expiration date as realized losses. If an option is exercised, the premium paid is subtracted from the proceeds of the sale or added to the cost of the purchase to determine whether the Company has realized a gain or loss on the related transaction. When the Company writes an option, the option liability is initially recorded at an amount equal to the premium received, if any, and is subsequently marked-to-market. Premiums received for writing options that expire unexercised are recognized on the expiration date as realized gains. If an option is exercised, the premium received is subtracted from the cost of the purchase or added to the proceeds of the sale to determine whether the Company has realized a gain or loss on the related investment transaction. When the Company enters into a closing transaction, the Company will realize a gain or loss depending upon whether the amount from the closing transaction is greater or less than the premiums paid or received. The Company may also enter into options that contain forward-settling premiums. In this case, no money is exchanged upfront. Instead the agreed-upon premium is paid by the buyer upon expiration of the option, regardless of whether or not the option is exercised.
	Forward Currency Contracts: A forward currency contract is an agreement between two parties to purchase or sell a specific quantity of currency with the delivery and settlement at a specific future date and exchange rate. During the period the forward currency contract is open, changes in the value of the contract are recognized as unrealized gains or losses. When the contract is settled, the Company records a realized gain or loss equal to the difference between the proceeds of the closing transaction and the Company's basis in the contract.
	Financial derivatives disclosed on the Consolidated Condensed Schedule of Investments include: credit default swaps on asset-backed securities, credit default swaps on asset-backed indices, credit default swaps on corporate bond indices, credit default swaps on corporate bonds, interest rate swaps, total return swaps, futures, foreign currency forwards, and options contracts.
	Financial derivative assets are included in Financial derivatives—assets, at fair value on the Consolidated Statement of Assets, Liabilities, and Equity. Financial derivative liabilities are included in Financial derivatives—liabilities, at fair value on the Consolidated Statement of Assets, Liabilities, and Equity. In addition, financial derivative contracts are summarized by type on the Consolidated Condensed Schedule of Investments.
	(F) Investments Sold Short: When the Company sells securities short, it typically satisfies its security delivery settlement obligation by obtaining the security sold from the same or a different counterparty. The Company generally is required to deliver cash or securities as collateral to the counterparty for the Company's obligation to return the borrowed security. The amount by which the market value of the obligation falls short of or exceeds the proceeds from the short sale is treated as an unrealized gain or loss, respectively. A realized gain or loss will be recognized upon the termination of a short sale if the market price is less or greater than the proceeds originally received.
	(G) Reverse Repurchase Agreements and Repurchase Agreements: The Company enters into reverse repurchase agreements with third-party broker-dealers whereby it sells securities under agreements to be repurchased at an agreed-upon price and date. The Company also enters into repurchase agreement transactions with third-party broker-dealers whereby it purchases securities under agreements to resell at an agreed-upon price and date. In general, securities received pursuant to repurchase agreements are delivered to counterparties of short sale transactions. The Company accounts for reverse repurchase agreements as collateralized borrowings, with the initial sale price representing the amount borrowed, and with the future repurchase price consisting of the amount borrowed plus interest, at the implied interest rate of the reverse repurchase agreement, on the amount borrowed over the term of the reverse repurchase agreement. The interest rate on a reverse repurchase agreement or a repurchase agreement is based on competitive rates (or competitive market spreads, in the case of agreements with floating interest rates) at the time such agreement is entered into. When the Company enters into a reverse repurchase agreement, the lender establishes and maintains an account containing cash and securities having a value not less than the repurchase price, including accrued interest, of the reverse repurchase agreement. Assets held pursuant to repurchase agreements are reflected as assets on the Consolidated Statement of Assets, Liabilities, and Equity. Repurchase and reverse repurchase agreements that are conducted with the same counterparty may be reported on a net basis if they meet the requirements of ASC 210-20, Balance Sheet Offsetting. There are no repurchase and reverse repurchase agreements netted in the Company's consolidated financial statements. Reverse repurchase agreements are carried at their contractual amounts, which approximate fair value as the debt is short-term in nature.
	(H) Securitized Debt: The Company entered into a resecuritization transaction in January 2012, which is accounted for as a collateralized borrowing. The asset contributed to the securitization was not derecognized but rather, the liability issued by the securitization was recorded to reflect the term financing of the re-securitized asset. Under ASC 825-10, the Company has elected to carry securitized debt at fair value.
	(I) When-Issued/Delayed Delivery Securities: The Company may purchase or sell securities on a when-issued or delayed delivery basis. Securities purchased or sold on a when-issued basis are traded for delivery beyond the normal settlement date at a stated price or yield, and no income accrues to the purchaser prior to settlement. Purchasing or selling securities on a when-issued or delayed delivery basis involves the risk that the market price or yield at the time of settlement may be lower or higher than the agreed-upon price or yield, in which case a realized loss may be incurred.
	The Company transacts in the forward settling To Be Announced MBS ("TBA") market. The Company typically does not take delivery of TBAs, but rather settles the associated receivable and payable with its trading counterparties on a net basis. Transactions with the same counterparty for the same TBA that result in a reduction of the position are treated as extinguished. The market value of the securities that the Company is required to purchase pursuant to a TBA transaction may decline below the agreed-upon purchase price. Conversely, the market value of the securities that the Company is required to sell pursuant to a TBA transaction may increase above the agreed upon sale price. As part of its TBA activities, the Company may "roll" its TBA positions, whereby the Company may sell (buy) securities for delivery (receipt) in an earlier month and simultaneously contract to repurchase (sell) similar, but not identical, securities at an agreed-upon price on a fixed date in a later month (with the later-month price typically lower than the earlier-month price). The Company accounts for its TBA transactions (including those related to TBA rolls) as purchases and sales.
	(J) Investments in Operating Entities: The Company may make non-controlling investments in operating entities such as mortgage originators. Investments in such operating entities may be in the form of preferred and/or common equity, or debt. The Company carries its investments in such entities at fair value.
	(K) Offering Costs/Underwriters' Discount: Offering costs and underwriters' discount are charged against shareholders' equity.
	(L) LTIP Units: Long term incentive plan units ("LTIP units") have been issued to the Company's dedicated or partially dedicated personnel and independent directors as well as the Manager. Costs associated with LTIP units issued to dedicated or partially dedicated personnel and independent directors are amortized over the vesting period in accordance with ASC 718-10, Compensation—Stock Compensation. Costs associated with LTIP units issued to the Manager are amortized over the vesting period in accordance with ASC 505-50, Equity-Based Payments to Non-Employees. The vesting periods for units issued under the Ellington Incentive Plan for Individuals (the "Individual LTIP") to dedicated or partially dedicated personnel are typically one year and can be up to two years. The vesting periods of Individual LTIP units are typically one year for independent directors. The vesting period for units issued to the Manager under the Ellington Incentive Plan for Entities (the "Manager LTIP") occurred over a three year period that ended in August 2010. The cost of the Manager LTIP units fluctuated with the price per share until the vesting date, whereas the cost of the Individual LTIP units is based on the price per share at the initial grant date.
	(M) Non-controlling interests: Non-controlling interests include the interest in the Operating Partnership owned by an affiliate of the Manager and certain related parties and consist of units convertible into the Company's common shares. Non-controlling interests also include the interest of a joint venture partner in a consolidated subsidiary. The joint venture partner's interest does not consist of units convertible into the Company's common shares. The Company adjusts the non-controlling interests owned by an affiliate of the Manager and certain related parties to align their carrying value with the share of total outstanding operating partnership units ("OP Units") issued by the Operating Partnership to the non-controlling interest. Any such adjustments are reflected in "Adjustment to non-controlling interest" on the Consolidated Statement of Changes in Equity. See Note 9 for further discussion of non-controlling interests.
	(N) Dividends: Dividends payable by the Company are recorded in the consolidated financial statements on the ex-dividend date. Dividends are typically declared and paid on a quarterly basis in arrears.
	(O) Shares Repurchased: Common shares that are repurchased by the Company subsequent to issuance decrease total number of shares outstanding and issued.
	(P) Earnings Per Share ("EPS"): Basic EPS is computed using the two class method by dividing net increase (decrease) in shareholders' equity resulting from operations after adjusting for the impact of LTIP units deemed to be participating securities, by the weighted average number of common shares outstanding calculated including LTIP units. Because the Company's LTIP units are deemed to be participating securities, they are included in the calculation of basic and diluted EPS. OP Units relating to a non-controlling interest are also considered participating securities and, accordingly, are included in the calculation of both basic and diluted EPS.
	(Q) Foreign Currency: Assets and liabilities denominated in foreign currencies are translated into U.S. dollars at current exchange rates at the following dates: (i) assets, liabilities, and unrealized gains/losses—at the valuation date; and (ii) income, expenses, and realized gains/losses—at the accrual/transaction date. The Company isolates the portion of realized and change in unrealized gain (loss) resulting from changes in foreign currency exchange rates on investments and financial derivatives from the fluctuations arising from changes in fair value of investments and financial derivatives held. Changes in realized and change in unrealized gain (loss) due to foreign currency are included in Foreign currency transactions and Foreign currency translation, respectively, on the Consolidated Statement of Operations.
	(R) Income Taxes: The Company intends to be treated as a partnership for U.S. federal income tax purposes. Certain of the Company's subsidiaries are not consolidated for U.S. federal income tax purposes, but are also treated as partnerships. In general, partnerships are not subject to entity-level tax on their income, but the income of a partnership is taxable to its owners on a flow-through basis. As of December 31, 2013, a subsidiary of the Company has elected to be treated as a corporation for U.S. federal income tax purposes. To date, this subsidiary has recognized a small loss.
	The Company follows the provisions of ASC 740-10, Income Taxes ("ASC 740-10"), which requires management to determine whether a tax position of the Company is more likely than not to be sustained upon examination by the applicable taxing authority, including resolution of any related appeals, based on the technical merits of the position. The Company did not have any additions to unrecognized tax benefits resulting from tax positions related either to the current period or to 2013, 2012, 2011, or 2010 (its open tax years), and no reductions resulting from tax positions of prior years or due to settlements, and thus had no unrecognized tax benefits or reductions since inception. The Company does not expect any change in unrecognized tax benefits within the next fiscal year. There were no amounts accrued for tax penalties or interest as of or during the periods presented in these consolidated financial statements.
	The Company may take positions with respect to certain tax issues which depend on legal interpretation of facts or applicable tax regulations. Should the relevant tax regulators successfully challenge any of such positions, the Company might be found to have a tax liability that has not been recorded in the accompanying consolidated financial statements. Also, management's conclusions regarding ASC 740-10 may be subject to review and adjustment at a later date based on factors including, but not limited to, further implementation guidance from the Financial Accounting Standards Board, or "FASB," and ongoing analyses of tax laws, regulations and interpretations thereof.
	To date there have been no material differences between the tax and U.S. GAAP bases of the Company's investments.
	(S) Recent Accounting Pronouncements: In June 2013, the FASB issued ASU 2013-08, Financial Services-Investment Companies ("ASC 946"). This update modifies the guidance for ASC 946 for determining whether an entity is an investment company for U.S. GAAP purposes. It requires entities that adopted AICPA Statement of Position 07-1 prior to its deferral to reassess whether they continue to meet the definition of an investment company for U.S. GAAP purposes. The guidance is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2013, with retrospective application; earlier application is prohibited. Management has determined that the Company still meets the definition of an investment company under ASC 946 and, as a result, the presentation of its financial statements has not changed as a result of this ASU.
	In January 2014, the FASB issued ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure ("ASU 2014-04"). This update modifies the guidance for ASC 310-40, Receivables-Troubled Debt Restructurings by Creditors. ASU 2014-04 clarifies when an in-substance repossession or foreclosure occurs that would require a transfer of a mortgage loan to real estate owned. Under ASU 2014-04, repossession or foreclosure is deemed to have occurred, and the creditor is considered to have received physical possession of residential real estate property collateralizing a mortgage loan when the creditor obtains legal title to the property upon completion of a foreclosure or the borrower conveys all interest in the property to the creditor through a deed in lieu of foreclosure or a similar legal agreement. ASU 2014-04 will become effective for annual and interim periods beginning after December 15, 2014 with early adoption permitted. ASU 2014-04 can be adopted using either a modified retrospective method or a prospective transition method with the cumulative effect being recognized in the beginning retained earnings of the earliest annual period for which ASU 2014-04 is adopted. The Company elected to adopt ASU 2014-04 effective January 1, 2014; such adoption did not have a material impact on the financial statements.
	In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures ("ASU 2014-11"). This amends ASC 860, Transfers and Servicing ("ASC 860"), to require disclosure of repurchase-to maturity transactions to be accounted for as secured borrowings rather than sales of an asset, and transfers of financial assets with a contemporaneous repo will no longer be evaluated to determine whether they should be accounted for on a combined basis as forward contracts. The new guidance also prescribes additional disclosures particularly on the nature of collateral pledged under repurchase agreements accounted for as secured borrowings. ASU 2014-11 is effective for interim and annual periods beginning after December 15, 2014. The adoption of ASC 860, as amended by ASU 2014-11 is not expected to have a material impact on the Company's consolidated financial statements.

Valuation

Valuation	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Valuation	'
	Valuation
	The following is a description of the valuation methodologies used for the Company's financial instruments.
	Level 1 valuation methodologies include the observation of quoted prices (unadjusted) for identical assets or liabilities in active markets, often received from widely recognized data providers.
	Level 2 valuation methodologies include the observation of (i) quoted prices for similar assets or liabilities in active markets, (ii) inputs other than quoted prices that are observable for the asset or liability (for example, interest rates and yield curves) in active markets and (iii) quoted prices for identical or similar assets or liabilities in markets that are not active.
	Level 3 valuation methodologies include (i) the solicitation of valuations from third parties (typically, pricing services and broker-dealers), (ii) the use of proprietary models that require the use of a significant amount of judgment and the application of various assumptions including, but not limited to, prepayment assumptions and default rate assumptions, (iii) the assessment of observable or reported recent trading activity, and (iv) principally in connection with investments in private operating entities, other metrics, such as estimated market multiples. The Company utilizes such information to assign a good faith fair value (the estimated price that would be received to sell an asset or paid to transfer a liability in an orderly transaction at the valuation date) to each such financial instrument.
	Excluding its investments in private operating entities, the Company generally seeks to obtain at least one third-party indicative valuation for each instrument, and often obtains multiple indicative valuations when available. Third-party valuation providers often utilize proprietary models that are highly subjective and also require the use of a significant amount of judgment and the application of various assumptions including, but not limited to, prepayment assumptions and default rate assumptions. The Company has been able to obtain third-party valuations on the vast majority of the Company's assets and expects to continue to solicit third-party valuations on substantially all of its assets in the future to the extent practical. The Company generally values each financial instrument at the average of third-party valuations received and not rejected as described below. Third-party valuations are not binding on the Company and while the Company generally does not adjust valuations it receives, the Company may challenge or reject a valuation when, based on validation criteria, the Company determines that such valuation is unreasonable or erroneous. Furthermore, the Company may determine, based on validation criteria, that for a given instrument the average of the third-party valuations received does not result in what the Company believes to be fair value, and in such circumstances the Company may override this average with its own good faith valuation. The validation criteria include the use of the Company's own models, recent trading activity in the same or similar instruments, and valuations received from third parties. The Company's valuation process, including the application of validation criteria, is overseen by the Manager's valuation committee. Because of the inherent uncertainty of valuation, these estimated values may differ significantly from the values that would have been used had a ready market for the financial instruments existed and the differences could be material to the consolidated financial statements.
	The table below reflects the value of the Company's Level 1, Level 2, and Level 3 financial instruments at September 30, 2014:
	Description		Level 1				Level 2				Level 3				Total
	Assets:		(In thousands)
	Cash and cash equivalents		$	129,124			$	—			$	—			$	129,124
	Investments, at fair value-
	Agency residential mortgage-backed securities and U.S. Treasury securities		$	—			$	1,682,568			$	38,572			$	1,721,140
	Private label residential mortgage-backed securities		—				—				502,070				502,070
	Private label commercial mortgage-backed securities		—				—				46,317				46,317
	Commercial mortgage loans		—				—				29,852				29,852
	Residential mortgage loans		—				—				17,147				17,147
	Other asset-backed securities and loans		—				—				109,152				109,152
	Description		Level 1				Level 2				Level 3				Total
	Investments, at fair value- (continued):		(In thousands)
	Real estate owned		$	—			$	—			$	7,464			$	7,464
	Private corporate investments		—				—				7,686				7,686
	Total investments, at fair value		—				1,682,568				758,260				2,440,828
	Financial derivatives–assets, at fair value-
	Credit default swaps on asset-backed securities		—				—				12,788				12,788
	Credit default swaps on corporate bond indices		—				20,044				—				20,044
	Credit default swaps on asset-backed indices		—				2,304				—				2,304
	Interest rate swaps		—				19,964				—				19,964
	Total return swaps		—				29				—				29
	Swaptions		—				261				—				261
	Options		—				31				—				31
	Futures		549				—				—				549
	Forwards		—				396				—				396
	Total financial derivatives–assets, at fair value		549				43,029				12,788				56,366
	Repurchase agreements		—				47,039				—				47,039
	Total investments and financial derivatives–assets, at fair value and repurchase agreements		$	549			$	1,772,636			$	771,048			$	2,544,233
	Liabilities:
	Investments sold short, at fair value-
	Agency residential mortgage-backed securities		$	—			$	(1,158,892	)		$	—			$	(1,158,892	)
	Government debt		—				(43,646		)		—				(43,646		)
	Common stock		(19,356		)		—				—				(19,356		)
	Total investments sold short, at fair value		(19,356		)		(1,202,538		)		—				(1,221,894		)
	Financial derivatives–liabilities, at fair value-
	Credit default swaps on corporate bond indices		—				(23,629		)		—				(23,629		)
	Credit default swaps on corporate bonds		—				(2,695		)		—				(2,695		)
	Credit default swaps on asset-backed indices		—				(4,385		)		—				(4,385		)
	Credit default swaps on asset-backed securities		—				—				(378		)		(378		)
	Interest rate swaps		—				(15,766		)		—				(15,766		)
	Total return swaps		—				(40		)		—				(40		)
	Options		—				(164		)		—				(164		)
	Swaptions		—				(213		)		—				(213		)
	Futures		(61		)		—				—				(61		)
	Forwards		—				—				—				—
	Total financial derivatives–liabilities, at fair value		(61		)		(46,892		)		(378		)		(47,331		)
	Securitized debt(1)		—				—				(870		)		(870		)
	Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value		$	(19,417	)		$	(1,249,430	)		$	(1,248	)		$	(1,270,095	)
	-1	The asset subject to the resecuritization had a fair value of $2.3 million as of September 30, 2014, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.
	Investments under the Agency residential mortgage-backed securities Level 3 category are investments in Agency interest only RMBS securities. There were no transfers of financial instruments between Level 1, Level 2, or Level 3 during the nine month period ended September 30, 2014. The Company's reverse repurchase agreements are carried at cost, which approximates fair value. These liabilities are classified as Level 2 liabilities based on the adequacy of the collateral and their short term nature.
	The following table identifies the significant unobservable inputs that affect the valuation of the Company's Level 3 assets and liabilities as of September 30, 2014:
		Fair Value				Valuation		Unobservable Input		Range								Weighted
	Description					Technique				Min				Max				Average
		(In thousands)
	Private label residential mortgage-backed securities (1)	$	422,033			Market Quotes		Non Binding Indicative Price		$	1.96			$	109.91			$	76.65
	Other asset-backed securities and loans	102,804				Market Quotes		Non Binding Indicative Price		48				162				102.08
Private label residential mortgage-backed securities	79,167				Discounted Cash Flows		Yield		3.6		%		16.1		%		7.3		%
							Projected Collateral Prepayments		7.6		%		83.6		%		40.1		%
							Projected Collateral Losses		3		%		45.2		%		13.1		%
							Projected Collateral Recoveries		0		%		25.5		%		8.3		%
							Projected Collateral Scheduled Amortization		0		%		79.5		%		38.5		%
																	100		%
Private label commercial mortgage-backed securities	12,950				Discounted Cash Flows		Yield		14.5		%		28.4		%		22.7		%
							Projected Collateral Losses		0.2		%		1.1		%		0.8		%
							Projected Collateral Recoveries		2.8		%		14.1		%		8.4		%
							Projected Collateral Scheduled Amortization		84.9		%		97		%		90.8		%
																	100		%
Other asset-backed securities and loans	6,348				Discounted Cash Flows		Yield		5.9		%		13.9		%		9.2		%
							Projected Collateral Prepayments		—		%		73.8		%		9.5		%
							Projected Collateral Losses		1.1		%		94.6		%		75.6		%
							Projected Collateral Recoveries		—		%		92.8		%		7.3		%
							Projected Collateral Scheduled Amortization		—		%		28		%		7.6		%
																	100		%
Private label commercial mortgage-backed securities	33,367				Market Quotes		Non Binding Indicative Price		$	10.02			$	97.09			$	57.28
Performing commercial mortgage loans	19,108				Discounted Cash Flows		Yield		10		%		19.7		%		17.5		%
Non-performing commercial mortgage loans	10,744				Discounted Cash Flows		Yield		10.3		%		15		%		13.9		%
							Months to Resolution		3				28				7.9
Non-performing residential mortgage loan pools and real estate owned	24,611				Discounted Cash Flows		Yield		6.5		%		12		%		7.4		%
							Months to Resolution		4				26				12.7
Agency interest only residential mortgage-backed securities	35,069				Market Quotes		Non Binding Indicative Price		$	3.76			$	30.14			$	13.65
Agency interest only residential mortgage-backed securities	3,503				Option Adjusted Spread ("OAS")		LIBOR OAS(2)		(44		)		1,401				671
							Projected Collateral Prepayments		57.2		%		100		%		77		%
							Projected Collateral Scheduled Amortization		0		%		42.8		%		23		%
																	100		%
(continued)
	Fair Value				Valuation		Unobservable Input		Range								Weighted
Description					Technique				Min				Max				Average
	(In thousands)
Credit default swaps on asset-backed securities	12,410				Net Discounted Cash Flows		Projected Collateral Prepayments		18.7		%		56.9		%		32.2		%
							Projected Collateral Losses		15.8		%		46.4		%		31		%
							Projected Collateral Recoveries		7.6		%		16.9		%		12.5		%
							Projected Collateral Scheduled Amortization		15.9		%		42.1		%		24.3		%
																	100		%
Preferred equity investment in commercial mortgage-related private partnership	5,000				Discounted Cash Flows		Yield		10.7		%		10.7		%		10.7		%
							Expected Holding Period (Months)		47.9				47.9				47.9
Equity investment in mortgage originator	2,686				Recent Transactions		Transaction Price		N/A				N/A				N/A
-1	Includes securitized debt with a fair value of $0.9 million as of September 30, 2014.
-2	Shown in basis points.
Third-party non-binding indicative prices are validated by comparing such prices to internally generated prices based on the Company's models and to recent trading activity in the same or similar instruments.
For those instruments valued using discounted and net discounted cash flows, collateral prepayments, losses, recoveries, and scheduled amortization are projected over the remaining life of the collateral and expressed as a percentage of the collateral's current principal balance. Averages are weighted based on the fair value of the related instrument. In the case of credit default swaps on asset-backed securities, averages are weighted based on each instrument's bond equivalent value. Bond equivalent value represents the investment amount of a corresponding position in the reference obligation, calculated as the difference between the outstanding principal balance of the underlying reference obligation and the fair value, inclusive of accrued interest, of the derivative contract. For those assets valued using the LIBOR Option Adjusted Spread ("OAS") valuation methodology, cash flows are projected using the Company's models over multiple interest rate scenarios, and these projected cash flows are then discounted using the LIBOR rates implied by each interest rate scenario. The LIBOR OAS of an asset is then computed as the unique constant yield spread that, when added to all LIBOR rates in each interest rate scenario generated by the model, will equate (a) the expected present value of the projected asset cash flows over all model scenarios to (b) the actual current market price of the asset. LIBOR OAS is therefore model-dependent. Generally speaking, LIBOR OAS measures the additional yield spread over LIBOR that an asset provides at its current market price after taking into account any interest rate options embedded in the asset. The Company considers the expected timeline to resolution in the determination of fair value for its non-performing commercial and residential loans.
Material changes in any of the inputs above in isolation could result in a significant change to reported fair value measurements. Additionally, fair value measurements are impacted by the interrelationships of these inputs. For example, a higher expectation of collateral prepayments will generally be accompanied by a lower expectation of collateral losses. Conversely, higher losses will generally be accompanied by lower prepayments. Because the Company's credit default swaps on asset-backed security holdings represent credit default swap contracts whereby the Company has purchased credit protection, such default swaps on asset-backed securities generally have the directionally opposite sensitivity to prepayments, losses, and recoveries as compared to the Company's long securities holdings. Prepayments do not represent a significant input for the Company's commercial mortgage-backed securities and commercial mortgage loans. Losses and recoveries do not represent a significant input for the Company's Agency RMBS interest only securities, given the guarantee of the issuing government agency or government-sponsored enterprise.
The table below reflects the value of the Company's Level 1, Level 2, and Level 3 financial instruments at December 31, 2013:
(In thousands)
Description		Level 1				Level 2				Level 3				Total
Assets:
Cash and cash equivalents		$	183,489			$	—			$	—			$	183,489
Investments, at fair value-
Agency residential mortgage-backed securities		$	—			$	989,842			$	40,504			$	1,030,346
Private label residential mortgage-backed securities		—				—				580,772				580,772
Private label commercial mortgage-backed securities		—				—				32,994				32,994
Commercial mortgage loans		—				—				23,887				23,887
Residential mortgage loans		—				—				24,062				24,062
Other asset-backed securities		—				—				38,069				38,069
Total investments, at fair value		—				989,842				740,288				1,730,130
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities		—				—				16,646				16,646
Credit default swaps on corporate bond indices		—				14,273				—				14,273
Credit default swaps on asset-backed indices		—				4,937				—				4,937
Interest rate swaps		—				23,553				—				23,553
Total return swaps		—				4				—				4
Options		—				251				—				251
Total financial derivatives–assets, at fair value		—				43,018				16,646				59,664
Repurchase agreements		—				27,962				—				27,962
Total investments and financial derivatives–assets, at fair value and repurchase agreements		$	—			$	1,060,822			$	756,934			$	1,817,756
Liabilities:
Investments sold short, at fair value-
Agency residential mortgage-backed securities		$	—			$	(811,957	)		$	—			$	(811,957	)
Government debt		—				(27,288		)		—				(27,288		)
Common stock		(6,369		)		—				—				(6,369		)
Total investments sold short, at fair value		(6,369		)		(839,245		)		—				(845,614		)
Financial derivatives–liabilities, at fair value-
Credit default swaps on corporate bond indices		—				(24,949		)		—				(24,949		)
Credit default swaps on asset-backed indices		—				(11,866		)		—				(11,866		)
Credit default swaps on asset-backed securities		—				—				(350		)		(350		)
Interest rate swaps		—				(5,064		)		—				(5,064		)
Total return swaps		—				(67		)		—				(67		)
Options		—				(84		)		—				(84		)
Futures		(2,373		)		—				—				(2,373		)
Forwards		—				(38		)		—				(38		)
Total financial derivatives–liabilities, at fair value		(2,373		)		(42,068		)		(350		)		(44,791		)
Securitized debt(1)		—				—				(983		)		(983		)
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value		$	(8,742	)		$	(881,313	)		$	(1,333	)		$	(891,388	)
-1	The asset subject to the resecuritization had a fair value of $2.3 million as of December 31, 2013, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.
Investments under the Agency residential mortgage-backed securities Level 3 category are investments in Agency interest only RMBS securities. There were no transfers of financial instruments between Level 1, Level 2, or Level 3 during the year ended December 31, 2013.
The Company's reverse repurchase agreements are carried at cost, which approximates fair value. These liabilities are classified as Level 2 liabilities based on the adequacy of the collateral and their short term nature.
The following table identifies the significant unobservable inputs that affect the valuation of the Company's Level 3 assets and liabilities as of December 31, 2013:
	Fair Value				Valuation		Unobservable Input		Range								Weighted
Description					Technique				Min				Max				Average
	(In thousands)
Private label residential mortgage-backed securities and Other asset-backed securities(1)	$	550,701			Market Quotes		Non Binding Indicative Price		$	1.8			$	110.35			$	78.09
Private label residential mortgage-backed securities	67,158				Discounted Cash Flows		Yield		3.8		%		20.5		%		8		%
							Projected Collateral Prepayments		6.9		%		64.5		%		29.7		%
							Projected Collateral Losses		4.3		%		35.2		%		17.4		%
							Projected Collateral Recoveries		0.3		%		17.1		%		9.1		%
							Projected Collateral Scheduled Amortization		14.1		%		87.3		%		43.8		%
																	100		%
Private label commercial mortgage-backed securities	3,480				Discounted Cash Flows		Yield		9.2		%		18.2		%		13.5		%
							Projected Collateral Losses		0.2		%		0.2		%		0.2		%
							Projected Collateral Recoveries		15.4		%		15.4		%		15.4		%
							Projected Collateral Scheduled Amortization		84.4		%		84.4		%		84.4		%
																	100		%
Private label commercial mortgage-backed securities and commercial mortgage loans	34,489				Market Quotes		Non Binding Indicative Price		$	14.25			$	102.89			$	74.24
Performing commercial mortgage loans	8,788				Discounted Cash Flows		Yield		12.7		%		12.8		%		12.7		%
Non-performing commercial mortgage loans	10,123				Discounted Cash Flows		Yield		15		%		15		%		15		%
							Months to Resolution		5				7				6
Non-performing residential mortgage loan pools	24,062				Discounted Cash Flows		Yield		7.4		%		7.4		%		7.4		%
							Months to Resolution		16.3				16.3				16.3
Agency interest only residential mortgage-backed securities	38,783				Market Quotes		Non Binding Indicative Price		$	6.26			$	33.77			$	14.53
Agency interest only residential mortgage-backed securities	1,721				Option Adjusted Spread ("OAS")		LIBOR OAS(2)		349				645				422
							Projected Collateral Prepayments		49		%		58.1		%		51.2		%
							Projected Collateral Scheduled Amortization		41.9		%		51		%		48.8		%
																	100		%
Credit default swaps on asset-backed securities	16,296				Net Discounted Cash Flows		Projected Collateral Prepayments		19.3		%		59		%		29.9		%
							Projected Collateral Losses		15.5		%		47.8		%		34.8		%
							Projected Collateral Recoveries		8.2		%		15.2		%		13.1		%
							Projected Collateral Scheduled Amortization		15.7		%		41.2		%		22.2		%
																	100		%
-1	Includes securitized debt with a fair value of $1.0 million as of December 31, 2013.
-2	Shown in basis points.
For those instruments valued using discounted and net discounted cash flows, collateral prepayments, losses, recoveries, and scheduled amortization are projected over the remaining life of the collateral and expressed as a percentage of the collateral's current principal balance. Averages are weighted based on the fair value of the related instrument. In the case of credit default swaps on asset-backed securities, averages are weighted based on each instrument's bond equivalent value. Bond equivalent value represents the investment amount of a corresponding position in the reference obligation, calculated as the difference between the outstanding principal balance of the underlying reference obligation and the fair value, inclusive of accrued interest, of the derivative contract. For those assets valued using the LIBOR Option Adjusted Spread ("OAS") valuation methodology, cash flows are projected using the Company's models over multiple interest rate scenarios, and these projected cash flows are then discounted using the LIBOR rates implied by each interest rate scenario. The LIBOR OAS of an asset is then computed as the unique constant yield spread that, when added to all LIBOR rates in each interest rate scenario generated by the model, will equate (a) the expected present value of the projected asset cash flows over all model scenarios to (b) the actual current market price of the asset. LIBOR OAS is therefore model-dependent. Generally speaking, LIBOR OAS measures the additional yield spread over LIBOR that an asset provides at its current market price after taking into account any interest rate options embedded in the asset.
Material changes in any of the inputs above in isolation could result in a significant change to reported fair value measurements. Additionally, fair value measurements are impacted by the interrelationships of these inputs. For example, a higher expectation of collateral prepayments will generally be accompanied by a lower expectation of collateral losses. Conversely, higher losses will generally be accompanied by lower prepayments. Because the Company's credit default swaps on asset-backed security holdings represent credit default swap contracts whereby the Company has purchased credit protection, such default swaps on asset-backed securities generally have the directionally opposite sensitivity to prepayments, losses, and recoveries as compared to the Company's long securities holdings. Prepayments do not represent a significant input for the Company's commercial mortgage-backed securities and commercial mortgage loans. Losses and recoveries do not represent a significant input for the Company's Agency RMBS interest only securities, given the guarantee of the issuing government agency or government-sponsored enterprise.
The tables below include a roll-forward of the Company's financial instruments for the three month periods ended September 30, 2014 and 2013 (including the change in fair value), for financial instruments classified by the Company within Level 3 of the valuation hierarchy.
Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
Three Month Period Ended September 30, 2014
(In thousands)	Ending				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
	Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
	30-Jun-14				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-14
					Premiums)
Assets:
Investments, at fair value-
Agency residential mortgage-backed securities	$	36,240			$	(2,188	)		$	286			$	492			$	4,695		$	(953	)	$	—	$	38,572
Private label residential mortgage-backed securities	485,902				4,770				3,684				(5,030		)		79,431			(66,687		)	—		502,070
Private label commercial mortgage-backed securities	28,047				145				1,089				(378		)		29,496			(12,082		)	—		46,317
Commercial mortgage loans	37,415				832				1,029				(382		)		8,113			(17,155		)	—		29,852
Residential mortgage loans	23,371				878				501				(131		)		(547		)	(6,925		)	—		17,147
Other asset-backed securities and loans	81,315				(2,791		)		(170		)		(637		)		43,353			(11,918		)	—		109,152
Real estate owned	1,641				—				18				229				6,033			(457		)	—		7,464
Private corporate investments	—				—				—				(239		)		7,925			—			—		7,686
Total investments, at fair value	693,931				1,646				6,437				(6,076		)		178,499			(116,177		)	—		758,260
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	14,162				—				(2,860		)		3,004				75			(1,593		)	—		12,788
Total financial derivatives– assets, at fair value	14,162				—				(2,860		)		3,004				75			(1,593		)	—		12,788
Total investments and financial derivatives–assets, at fair value	$	708,093			$	1,646			$	3,577			$	(3,072	)		$	178,574		$	(117,770	)	$	—	$	771,048
Liabilities:
Financial derivatives–liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(350	)		$	—			$	(20	)		$	(28	)		$	—		$	20		$	—	$	(378	)
Total financial derivatives– liabilities, at fair value	(350		)		—				(20		)		(28		)		—			20			—		(378		)
Securitized debt:
Securitized debt	(925		)		(1		)		—				(2		)		58			—			—		(870		)
Total securitized debt	(925		)		(1		)		—				(2		)		58			—			—		(870		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,275	)		$	(1	)		$	(20	)		$	(30	)		$	58		$	20		$	—	$	(1,248	)
All amounts of net realized and change in net unrealized gain (loss) in the table above are reflected in the accompanying Consolidated Statement of Operations. The table above incorporates changes in net unrealized gain (loss) for both Level 3 financial instruments held by the Company at September 30, 2014, as well as Level 3 financial instruments disposed of by the Company during the three month period ended September 30, 2014. For Level 3 financial instruments held by the Company at September 30, 2014, change in net unrealized gain (loss) of $(2.9) million, $(0.7) million, $(28.6) thousand and $(2.0) thousand, for the three month period ended September 30, 2014 relate to investments, financial derivatives–assets, and securitized debt, respectively.
Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
Three Month Period Ended September 30, 2013
(In thousands)	Beginning				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
	Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
	June 30,				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-13
	2013				Premiums)
Assets:
Investments, at fair value-
Agency residential mortgage-backed securities	$	27,397			$	(1,844	)		$	—			$	875			$	10,605		$	—		$	—	$	37,033
Private label residential mortgage-backed securities	694,510				7,289				11,187				(5,865		)		106,194			(161,333		)	—		651,982
Private label commercial mortgage-backed securities	23,906				161				647				139				21,760			(13,342		)	—		33,271
Commercial mortgage loans	7,563				31				—				411				6,931			—			—		14,936
Other asset-backed securities	39,840				(658		)		38				60				8,334			(2,359		)	—		45,255
Total investments, at fair value	793,216				4,979				11,872				(4,380		)		153,824			(177,034		)	—		782,477
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	21,134				—				(3,113		)		2,995				58			(3,459		)	—		17,615
Total financial derivatives– assets, at fair value	21,134				—				(3,113		)		2,995				58			(3,459		)	—		17,615
Total investments and financial derivatives–assets, at fair value	$	814,350			$	4,979			$	8,759			$	(1,385	)		$	153,882		$	(180,493	)	$	—	$	800,092
Liabilities:
Financial derivatives–liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(541	)		$	—			$	(2	)		$	222			$	—		$	2		$	—	$	(319	)
Total financial derivatives– liabilities, at fair value	(541		)		—				(2		)		222				—			2			—		(319		)
Securitized debt:
Securitized debt	(1,168		)		(10		)		—				30				110			—			—		(1,038		)
Total securitized debt	(1,168		)		(10		)		—				30				110			—			—		(1,038		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,709	)		$	(10	)		$	(2	)		$	252			$	110		$	2		$	—	$	(1,357	)
All amounts of net realized and change in net unrealized gain (loss) in the table above are reflected in the accompanying Consolidated Statement of Operations. The table above incorporates changes in net unrealized gain (loss) for both Level 3 financial instruments held by the Company at September 30, 2013, as well as Level 3 financial instruments disposed of by the Company during the three month period ended September 30, 2013. For Level 3 financial instruments held by the Company at September 30, 2013, change in net unrealized gain (loss) of $4.3 million, $1.0 million, $2.2 million, and $30.0 thousand, for the three month period ended September 30, 2013 relate to investments, financial derivatives–assets, financial derivatives–liabilities, and securitized debt, respectively.
Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
Nine Month Period Ended September 30, 2014
(In thousands)	Beginning				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
	Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
	December 31,				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-14
	2013				Premiums)
Assets:
Investments, at fair value-
Agency residential mortgage-backed securities	$	40,504			$	(6,523	)		$	457			$	515			$	7,249		$	(3,630	)	$	—	$	38,572
Private label residential mortgage-backed securities	580,772				15,359				34,862				(14,366		)		233,654			(348,211		)	—		502,070
Private label commercial mortgage-backed securities	32,994				497				5,479				(842		)		95,665			(87,476		)	—		46,317
Commercial mortgage loans	23,887				1,916				1,901				(673		)		32,117			(29,296		)	—		29,852
Residential mortgage loans	24,062				878				878				823				1,148			(10,642		)	—		17,147
Other asset-backed securities and loans	38,069				(3,444		)		184				(581		)		97,539			(22,615		)	—		109,152
Real estate owned	—				—				7				212				7,792			(547		)	—		7,464
Private corporate investments	—				—				—				(239		)		7,925			—			—		7,686
Total investments, at fair value	740,288				8,683				43,768				(15,151		)		483,089			(502,417		)	—		758,260
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	16,646				—				(2,135		)		2,379				530			(4,632		)	—		12,788
Total financial derivatives– assets, at fair value	16,646				—				(2,135		)		2,379				530			(4,632		)	—		12,788
Total investments and financial derivatives–assets, at fair value	$	756,934			$	8,683			$	41,633			$	(12,772	)		$	483,619		$	(507,049	)	$	—	$	771,048
Liabilities:
Financial derivatives–liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(350	)		$	—			$	(59	)		$	(28	)		$	—		$	59		$	—	$	(378	)
Total financial derivatives– liabilities, at fair value	(350		)		—				(59		)		(28		)		—			59			—		(378		)
Securitized debt:
Securitized debt	(983		)		(14		)		—				(17		)		144			—			—		(870		)
Total securitized debt	(983		)		(14		)		—				(17		)		144			—			—		(870		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,333	)		$	(14	)		$	(59	)		$	(45	)		$	144		$	59		$	—	$	(1,248	)
All amounts of net realized and change in net unrealized gain (loss) in the table above are reflected in the accompanying Consolidated Statement of Operations. The table above incorporates changes in net unrealized gain (loss) for both Level 3 financial instruments held by the Company at September 30, 2014, as well as Level 3 financial instruments disposed of by the Company during the nine month period ended September 30, 2014. For Level 3 financial instruments held by the Company at September 30, 2014, change in net unrealized gain (loss) of $2.3 million, $(1.9) million, $(28.4) thousand and $(17.0) thousand, for the nine month period ended September 30, 2014 relate to investments, financial derivatives–assets, financial derivatives–liabilities, and securitized debt, respectively.
Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
Nine Month Period Ended September 30, 2013
(In thousands)	Ending				Accreted				Net Realized				Change in				Purchases/			Sales/			Transfers In		Ending
	Balance as of December 31, 2012				Discounts /				Gain/				Net				Payments			Issuances			and/or Out		Balance as of September 30, 2013
					(Amortized				(Loss)				Unrealized										of Level 3
					Premiums)								Gain/(Loss)
Assets:
Investments, at fair value-
Agency residential mortgage-backed securities	$	6,644			$	(3,846	)		$	—			$	1,180			$	33,055		$	—		$	—	$	37,033
Private label residential mortgage-backed securities	528,366				20,401				30,977				11,518				363,056			(302,336		)	—		651,982
Private label commercial mortgage-backed securities	19,327				258				(477		)		2,612				58,928			(47,377		)	—		33,271
Commercial mortgage loans	9,546				58				482				497				9,481			(5,128		)	—		14,936
Other asset-backed securities	—				(775		)		569				(866		)		56,435			(10,108		)	—		45,255
Total investments, at fair value	563,883				16,096				31,551				14,941				520,955			(364,949		)	—		782,477
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	36,031				—				(404		)		(1,497		)		149			(16,664		)	—		17,615
Total financial derivatives– assets, at fair value	36,031				—				(404		)		(1,497		)		149			(16,664		)	—		17,615
Total investments and financial derivatives–assets, at fair value	$	599,914			$	16,096			$	31,147			$	13,444			$	521,104		$	(381,613	)	$	—	$	800,092
Liabilities:
Financial derivatives– liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(1	)		$	—			$	(59	)		$	(318	)		$	—		$	59		$	—	$	(319	)
Total financial derivatives– liabilities, at fair value	(1		)		—				(59		)		(318		)		—			59			—		(319		)
Securitized debt:
Securitized debt	(1,335		)		(31		)		—				36				292			—			—		(1,038		)
Total securitized debt	(1,335		)		(31		)		—				36				292			—			—		(1,038		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,336	)		$	(31	)		$	(59	)		$	(282	)		$	292		$	59		$	—	$	(1,357	)
All amounts of net realized and change in net unrealized gain (loss) in the table above are reflected in the accompanying Consolidated Statement of Operations. The table above incorporates changes in net unrealized gain (loss) for both Level 3 financial instruments held by the Company at September 30, 2013, as well as Level 3 financial instruments disposed of by the Company during the nine month period ended September 30, 2013. For Level 3 financial instruments held by the Company at September 30, 2013, change in net unrealized gain (loss) of $19.6 million, $(8.8) million, $(0.3) million, and $36.0 thousand for the nine month period ended September 30, 2013 relate to investments, financial derivatives–assets, financial derivatives–liabilities, and securitized debt, respectively.

To_Be_Announced_RMBS

To Be Announced RMBS	9 Months Ended
	Sep. 30, 2014
To Be Announced RMBS [Abstract]	'
To Be Announced RMBS	'
	To Be Announced RMBS
	In addition to investing in pools of Agency RMBS, the Company transacts in the forward settling To Be Announced MBS ("TBA") market. Pursuant to these TBA transactions, the Company agrees to purchase or sell, for future delivery, Agency RMBS with certain principal and interest terms and certain types of underlying collateral, but the particular Agency RMBS to be delivered is not identified until shortly before the TBA settlement date. TBAs are liquid and have quoted market prices and represent the most actively traded class of MBS. The Company uses TBAs primarily for hedging purposes, typically in the form of short positions. However, the Company may also invest in TBAs for speculative purposes, including holding long positions. Overall, the Company typically holds a net short position.
	The Company does not generally take delivery of TBAs; rather, it settles the associated receivable and payable with its trading counterparties on a net basis. Transactions with the same counterparty for the same TBA that result in a reduction of the position are treated as extinguished. The fair value of the Company's positions in long TBA contracts are reflected on the Schedule of Investments under TBA - Fixed Rate Agency Securities and the fair value of the Company's positions in TBA contracts sold short are reflected on the Schedule of Investments under TBA - Fixed Rate Agency Securities Sold Short. The payables and receivables related to the Company's TBA securities are included on the Consolidated Statement of Assets, Liabilities, and Equity in Payable for securities purchased and Receivable for securities sold, respectively.
	The below table details TBA assets, liabilities, and the respective related payables and receivables as of September 30, 2014 and December 31, 2013:
		As of
		September 30, 2014			31-Dec-13
	Assets:	(In thousands)
	TBA securities, at fair value (Current principal: $112,448 and $101,150, respectively)	$	111,624		$	96,856
	Receivable for securities sold relating to unsettled TBA sales	1,158,168			813,933
	Liabilities:
	TBA securities sold short, at fair value (Current principal: -$1,101,218 and -$784,888, respectively)	$	(1,158,892	)	$	(811,957	)
	Payable for securities purchased relating to unsettled TBA purchases	(112,286		)	(96,762		)
	Net short TBA securities, at fair value	(1,047,268		)	(715,101		)

Financial_Derivatives

Financial Derivatives	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Financial Derivatives	'
	Financial Derivatives
	Gains and losses on the Company's derivative contracts for the three and nine month periods ended September 30, 2014 and 2013 are summarized in the tables below:
	September 30, 2014:
	Derivative Type		Primary Risk		Net Realized				Change in Net			Net Realized			Change in Net
			Exposure		Gain/(Loss) for				Unrealized			Gain/(Loss) for			Unrealized
					the Three Month Period Ended				Gain/(Loss) for			the Nine Month Period Ended			Gain/(Loss) for
					30-Sep-14				the Three Month Period Ended			30-Sep-14			the Nine Month Period Ended
									30-Sep-14						30-Sep-14
	(In thousands)
	Financial derivatives–assets
	Credit default swaps on asset-backed securities		Credit		$	(2,860	)		$	3,004		$	(2,135	)	$	2,379
	Credit default swaps on asset-backed indices		Credit		(2,145		)		2,327			(4,261		)	2,367
	Credit default swaps on corporate bond indices		Credit		(1,459		)		414			653			(361		)
	Total return swaps		Equity Market		1,079				4			8,846			24
	Interest rate swaps		Interest Rates		1,953				191			1,904			(3,940		)
	Futures		Interest Rates		299				(2,023		)	1,266			550
	Forwards		Currency		2,218				345			2,722			396
	Other		Credit/		(60		)		(97		)	48			504
			Interest Rates
					(975		)		4,165			9,043			1,919
	Financial derivatives–liabilities
	Credit default swaps on asset-backed securities		Credit		(20		)		(28		)	(59		)	(28		)
	Credit default swaps on asset-backed indices		Credit		166				(55		)	2,608			(1,180		)
	Credit default swaps on corporate bond indices		Credit		(1,878		)		5,034			(7,639		)	8,948
	Credit default swaps on corporate bonds		Credit		369				(395		)	510			(620		)
	Total return swaps		Equity Market		(4,067		)		3			(5,041		)	27
	Interest rate swaps		Interest Rates		(2,218		)		174			(6,075		)	(7,539		)
	Futures		Interest Rates		39				2,650			14			2,315
	Forwards		Currency		(997		)		314			(1,926		)	38
	Other		Credit/		104				194			(510		)	(35		)
			Interest Rates/Equity Market
					(8,502		)		7,891			(18,118		)	1,926
	Total				$	(9,477	)		$	12,056		$	(9,075	)	$	3,845
	September 30, 2013:
	Derivative Type		Primary Risk		Net Realized				Change in Net			Net Realized			Change in Net
			Exposure		Gain/(Loss) for				Unrealized			Gain/(Loss) for			Unrealized
					the Three Month Period Ended				Gain/(Loss) for			the Nine Month Period Ended			Gain/(Loss) for
					30-Sep-13				the Three Month Period Ended			30-Sep-13			the Nine Month Period Ended
									30-Sep-13						30-Sep-13
	(In thousands)
	Financial derivatives–assets
	Credit default swaps on asset-backed securities		Credit		$	(3,113	)		$	2,995		$	(404	)	$	(1,497	)
	Credit default swaps on asset-backed indices		Credit		(181		)		(1,011		)	(4,302		)	2,503
	Credit default swaps on corporate bond indices		Credit		(84		)		44			(3		)	—
	Total return swaps		Equity Market		907				(112		)	911			15
	Interest rate swaps		Interest Rates		(512		)		(195		)	(229		)	15,768
	Futures		Interest Rates		255				970			103			975
	Other		Interest Rates		67				(41		)	67			(41		)
					(2,661		)		2,650			(3,857		)	17,723
	Financial derivatives–liabilities
	Credit default swaps on asset-backed securities		Credit		(2		)		222			(59		)	(318		)
	Credit default swaps on asset-backed indices		Credit		339				959			539			1,772
	Credit default swaps on corporate bond indices		Credit		(2,985		)		(1,959		)	(7,517		)	(1,759		)
	Total return swaps		Equity Market		(53		)		96			(448		)	43
	Interest rate swaps		Interest Rates		(10		)		(4,099		)	282			(2,997		)
	Futures		Interest Rates		(1,029		)		82			(1,673		)	70
	Other		Interest Rates/ Equity Market		(41		)		44			(41		)	44
					(3,781		)		(4,655		)	(8,917		)	(3,145		)
	Total				$	(6,442	)		$	(2,005	)	$	(12,774	)	$	14,578
	The Company uses period end notional values as a percentage of average monthly notional values outstanding by instrument type as an indicator of the volume of activity with respect to financial derivatives. For options, interest rate swaps, total return swaps, credit default swaps, futures, and forwards notional values reflected on the Consolidated Condensed Schedule of Investments represent approximately 263%, 165%, 164%, 105%, 96%, and 56%, respectively, of average monthly notional values of each such category outstanding during the nine month period ended September 30, 2014. For options, total return swaps, interest rate swaps, futures, and credit default swaps, notional values reflected on the Consolidated Condensed Schedule of Investments represent approximately 387%, 210%, 187%, 179%, and 174%, respectively, of average monthly notional values of each such category outstanding during the year ended December 31, 2013. The Company started trading foreign currency forward contracts in December 2013; foreign currency contracts outstanding at December 31, 2013 represented the entire foreign currency forward activity for the year ended December 31, 2013.
	From time to time the Company enters into credit derivative contracts for which the Company sells credit protection ("written credit derivatives"). As of September 30, 2014 and December 31, 2013, all of the Company's open written credit derivatives were credit default swaps on either mortgage/asset-backed indices (ABX and CMBX indices), corporate bond indices (CDX), collectively referred to as credit indices, or on individual corporate bonds, for which the Company receives periodic payments at fixed rates from credit protection buyers, and is obligated to make payments to the credit protection buyer upon the occurrence of a "credit event" with respect to underlying reference assets.
	Written credit derivatives held by the Company at September 30, 2014 and December 31, 2013, are summarized below:
	Credit Derivatives		Amount at				Amount at
30-Sep-14			December 31, 2013
(In thousands)
Fair Value of Written Credit Derivatives, Net		$	12,041			$	1,421
Fair Value of Purchased Credit Derivatives Offsetting Written Credit Derivatives with Third Parties (1)		$	334			$	57
Notional Amount of Written Credit Derivatives (2)		$	(140,013	)		$	(120,497	)
Notional Amount of Purchased Credit Derivatives Offsetting Written Credit Derivatives with Third Parties (1)		$	1,910			$	249
-1	Offsetting transactions with third parties include purchased credit derivatives which have the same reference obligation.
-2	The notional value is the maximum amount that a seller of credit protection would be obligated to pay, and a buyer of credit protection would receive upon occurrence of a "credit event." Movements in the value of credit default swap transactions may require the Company or the counterparty to post or receive collateral. Amounts due or owed under credit derivative contracts with an International Swaps and Derivatives Association, or "ISDA," counterparty may be offset against amounts due or owed on other credit derivative contracts with the same ISDA counterparty. As a result, the notional amount of written credit derivatives involving a particular underlying reference asset or index has been reduced (but not below zero) by the notional amount of any contracts where the Company has purchased credit protection on the same reference asset or index with the same ISDA counterparty.
A credit default swap on a credit index or a corporate bond typically terminates at the stated maturity date in the case of corporate indices or bonds, or, in the case of ABX and CMBX indices, the date that all of the reference assets underlying the index are paid off in full, retired, or otherwise cease to exist. Implied credit spreads may be used to determine the market value of such contracts and are reflective of the cost of buying/selling credit protection. Higher spreads would indicate a greater likelihood that a seller will be obligated to perform (i.e., make payment) under the contract. In situations where the credit quality of the underlying reference assets has deteriorated, the percentage of notional values paid up front ("points up front") is frequently used as an indication of credit risk. Credit protection sellers entering the market would expect to be paid points up front corresponding to the approximate fair value of the contract. Total net up-front payments received relating to written credit derivatives outstanding at September 30, 2014 and December 31, 2013 were $10.6 million and $2.5 million, respectively.

Borrowings_under_Reverse_Repur

Borrowings under Reverse Repurchase Agreements	9 Months Ended
	Sep. 30, 2014
Borrowings under Reverse Repurchase Agreements [Abstract]	'
Borrowings under Reverse Repurchase Agreements	'
	Borrowings under Reverse Repurchase Agreements
	The Company enters into reverse repurchase agreements. A reverse repurchase agreement involves the sale of an asset to a counterparty together with a simultaneous agreement to repurchase the transferred asset or similar asset from such counterparty at a future date. The Company accounts for its reverse repurchase agreements as collateralized borrowings, with the transferred assets effectively serving as collateral for the related borrowing. The Company's reverse repurchase agreements typically range in term from 30 to 180 days. The principal economic terms of each reverse repurchase agreement—such as loan amount, interest rate, and maturity date—are typically negotiated on a transaction-by-transaction basis. Other terms and conditions, such as relating to events of default, are typically governed under the Company's master repurchase agreements, or "MRAs." Absent an event of default, the Company maintains beneficial ownership of the transferred securities during the term of the reverse repurchase agreement and receives the related principal and interest payments. Interest rates on these borrowings are generally fixed based on prevailing rates corresponding to the terms of the borrowings, and interest is paid at the termination of the reverse repurchase agreement at which time the Company may enter into a new reverse repurchase agreement at prevailing market rates with the same counterparty, repay that counterparty and possibly negotiate financing terms with a different counterparty, or choose to no longer finance the related asset. In response to a decline in the fair value of the transferred securities, whether as a result of changes in market conditions, security paydowns, or other factors, reverse repurchase agreement counterparties will typically make a margin call, whereby the Company will be required to post additional securities and/or cash as collateral with the counterparty in order to re-establish the agreed-upon collateralization requirements. The contractual amount (loan amount) of the Company's reverse repurchase agreements approximates their fair value, as the debt is short-term in nature.
	In September 2014, the Company entered into a $150 million "non-mark-to-market" reverse repo facility with an existing counterparty which provides financing for certain types of non-Agency assets for a period of at least two years. After the first 18 months, the facility converts to a rolling facility with a six month cancellation notice period and automatic termination in September 2017. Under the terms of the facility, no additional collateral is required to be posted by the Company based on changes in market values of the underlying assets; however, all payments and prepayments of principal received on financed assets are applied to reduce the amount outstanding under the facility. As of September 30, 2014, the Company had $58.4 million in borrowings outstanding under the facility and intends to utilize the remaining available credit over the near term.
	At any given time, the Company seeks to have its outstanding borrowings under reverse repurchase agreements with several different counterparties in order to reduce the exposure to any single counterparty. The Company had outstanding borrowings under reverse repurchase agreements with seventeen counterparties and fourteen counterparties, as of September 30, 2014 and December 31, 2013, respectively.
	At September 30, 2014, approximately 20% of open reverse repurchase agreements were with one counterparty. At December 31, 2013, approximately 39% of open reverse repurchase agreements were with two counterparties. As of September 30, 2014 remaining days to maturity on the Company's open reverse repurchase agreements ranged from 1 to 723 days and from 2 to 180 days as of December 31, 2013. Interest rates on the Company's open reverse repurchase agreements ranged from (0.10)% to 2.41% as of September 30, 2014 and from 0.32% to 2.27% as of December 31, 2013. The negative interest rate at September 30, 2014 was related to a reverse repurchase agreement on a U.S. Treasury security.
	The following table details the Company's outstanding borrowings under reverse repurchase agreements by remaining maturity as of September 30, 2014 and December 31, 2013:
	(In thousands)	30-Sep-14					31-Dec-13
				Weighted Average					Weighted Average
	Remaining Maturity	Outstanding		Interest Rate		Remaining Days to Maturity	Outstanding		Interest Rate		Remaining Days to Maturity
		Borrowings					Borrowings
	30 Days or Less	$	609,777	0.35	%	11	$	369,861	0.53	%	14
	31-60 Days	331,753		0.69	%	46	402,206		1.12	%	45
	61-90 Days	284,665		0.42	%	72	320,161		0.78	%	72
	91-120 Days	36,338		0.4	%	106	8,233		1.4	%	100
	121-150 Days	7,053		0.9	%	134	38,856		0.49	%	135
	151-180 Days	67,134		1.71	%	166	96,849		1.9	%	179
	>360 Days	58,412		2.41	%	723	—		—	%	—
		$	1,395,132	0.61	%	72	$	1,236,166	0.9	%	56
	Reverse repurchase agreements involving underlying investments that we sold prior to period end, for settlement following period end, are shown using their original maturity dates even though such reverse repurchase agreements may be expected to be terminated early upon settlement of the sale of the underlying investment. Not included above are any reverse repurchase agreements that we may have entered into prior to period end for which delivery of the borrowed funds is not scheduled until after period end.
	As of September 30, 2014 and December 31, 2013, the fair value of investments transferred as collateral under outstanding borrowings under reverse repurchase agreements was $1.56 billion and $1.46 billion, respectively. Collateral transferred under outstanding borrowings as of September 30, 2014 include investments in the amount of $27.0 million that were sold prior to period end but for which such sale had not yet settled. Collateral transferred under outstanding borrowings as of December 31, 2013 include investments in the amount of $13.3 million that were sold prior to period end but for which such sale had not yet settled. In addition the Company posted net cash collateral of $14.3 million and additional securities with a fair value of $11.4 million as of September 30, 2014 as a result of margin calls with various counterparties. The Company posted additional net cash collateral of $2.9 million and additional securities with a fair value of $20.6 million as of December 31, 2013 as a result of margin calls with various counterparties. As of September 30, 2014, our reverse repos included overnight borrowings on U.S. Treasury securities in the amount of $224.4 million.

Base_Management_Fee_And_Incent

Base Management Fee And Incentive Fee	9 Months Ended
	Sep. 30, 2014
Base Management Fee And Incentive Fee [Abstract]	'
Base Management Fee and Incentive Fee	'
	Base Management Fee and Incentive Fee
	The Company is party to a Management Agreement (which may be amended from time to time), pursuant to which the Manager manages the assets, operations, and affairs of the Company, in consideration of which the Company pays the Manager management and incentive fees. Effective March 13, 2014, the Board of Directors approved a Fifth Amended and Restated Management Agreement, between the Company and the Manager. The descriptions of the Base Management Fees and Incentive Fees are detailed below.
	Base Management Fees
	The Operating Partnership pays the Manager 1.50% per annum of total equity of the Operating Partnership calculated in accordance with U.S. GAAP as of the end of each fiscal quarter (before deductions for base management fees and incentive fees payable with respect to such fiscal quarter), provided that total equity is adjusted to exclude one-time events pursuant to changes in U.S. GAAP, as well as non-cash charges after discussion between the Manager and the Company's independent directors, and approval by a majority of the Company's independent directors in the case of non-cash charges.
	Summary information—For the three month periods ended September 30, 2014 and 2013, the total base management fee incurred was $3.1 million and $2.4 million, respectively. For the nine month periods ended September 30, 2014 and 2013, the total base management fee incurred was $7.8 million and $6.8 million, respectively.
	Incentive Fees
	The Manager is entitled to receive a quarterly incentive fee equal to the positive excess, if any, of (i) the product of (A) 25% and (B) the excess of (1) Adjusted Net Income (described below) for the Incentive Calculation Period (which means such fiscal quarter and the immediately preceding three fiscal quarters) over (2) the sum of the Hurdle Amounts (described below) for the Incentive Calculation Period, over (ii) the sum of the incentive fees already paid or payable for each fiscal quarter in the Incentive Calculation Period preceding such fiscal quarter.
	For purposes of calculating the incentive fee, "Adjusted Net Income" for the Incentive Calculation Period means the net increase in equity from operations of the Operating Partnership, after all base management fees but before any incentive fees for such period, and excluding any non-cash equity compensation expenses for such period, as reduced by any Loss Carryforward (as described below) as of the end of the fiscal quarter preceding the Incentive Calculation Period.
	For purposes of calculating the incentive fee, the "Loss Carryforward" as of the end of any fiscal quarter is calculated by determining the excess, if any, of (1) the Loss Carryforward as of the end of the immediately preceding fiscal quarter over (2) the Company's net increase in equity from operations (expressed as a positive number) or net decrease in equity from operations (expressed as a negative number) of the Operating Partnership for such fiscal quarter. As of September 30, 2014 there was no Loss Carryforward.
	For purposes of calculating the incentive fee, the "Hurdle Amount" means, with respect to any fiscal quarter, the product of (i) one-fourth of the greater of (A) 9% and (B) 3% plus the 10-year U.S. Treasury rate for such fiscal quarter, (ii) the sum of (A) the weighted average gross proceeds per share of all common share and OP Unit issuances since inception of the Company and up to the end of such fiscal quarter, with each issuance weighted by both the number of shares and OP Units issued in such issuance and the number of days that such issued shares and OP Units were outstanding during such fiscal quarter, using a first-in first-out basis of accounting (i.e. attributing any share and OP Unit repurchases to the earliest issuances first) and (B) the result obtained by dividing (I) retained earnings attributable to common shares and OP Units at the beginning of such fiscal quarter by (II) the average number of common shares and OP Units outstanding for each day during such fiscal quarter, (iii) the sum of the average number of common shares, LTIP Units, and OP Units outstanding for each day during such fiscal quarter. For purposes of determining the Hurdle Amount, issuances of common shares and OP Units (a) as equity incentive awards, (b) to the Manager as part of its base management fee or incentive fee and (c) to the Manager or any of its affiliates in privately negotiated transactions, are excluded from the calculation. The payment of the incentive fee will be in a combination of common shares and cash, provided that at least 10% of any quarterly payment will be made in common shares.
	Summary information— Total incentive fee incurred for the three and nine month periods ended September 30, 2014 was $1.4 million. Total incentive fee incurred for the three and nine month periods ended September 30, 2013 was $2.0 million and $5.3 million, respectively.

LongTerm_Incentive_Plan_Units

Long-Term Incentive Plan Units	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Long-Term Incentive Plan Units	'
	Long-Term Incentive Plan Units
	In 2007, the Company established the Manager LTIP and the Individual LTIP. Pursuant to the terms of the Manager LTIP, the Company issued 375,000 long-term incentive plan units to its Manager, which as of August 17, 2010 have been fully vested and expensed. Pursuant to the terms of the Individual LTIP, each year since inception the Company has issued annual awards to its independent directors and, beginning in 2010, issued awards to certain of its dedicated or partially dedicated personnel.
	Units held pursuant to the Individual LTIPs are generally exercisable by the holder at any time after vesting. Each unit is convertible into one common share. Costs associated with the Individual LTIPs are measured as of the grant date and expensed ratably over the vesting period. Total expense associated with Individual LTIPs for the three month periods ended September 30, 2014 and 2013 was $0.07 million and $0.04 million, respectively. Total expense associated with Individual LTIPs for the nine month periods ended September 30, 2014 and 2013 was $0.19 million and $0.13 million, respectively.
	Detailed below is a roll-forward of the Company's LTIP units outstanding for the three month periods ended September 30, 2014 and 2013:
		Three Month Period Ended					Three Month Period Ended
		30-Sep-14					30-Sep-13
		Manager	Director/		Total		Manager	Director/		Total
			Employee					Employee
	LTIP Units Outstanding (6/30/2014 and 6/30/2013, respectively)	375,000	36,052		411,052		375,000	22,096		397,096
	Granted	—	5,841		5,841		—	5,466		5,466
	Exercised	—	(1,822	)	(1,822	)	—	(1,782	)	(1,782	)
	LTIP Units Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	40,071		415,071		375,000	25,780		400,780
	LTIP Units Vested and Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	23,958		398,958		375,000	17,814		392,814
	Detailed below is a roll-forward of the Company's LTIP units outstanding for the nine month periods ended September 30, 2014 and 2013:
		Nine Month Period Ended					Nine Month Period Ended
		30-Sep-14					30-Sep-13
		Manager	Director/		Total		Manager	Director/		Total
			Employee					Employee
	LTIP Units Outstanding (12/31/2013 and 12/31/2012, respectively)	375,000	36,052		411,052		375,000	22,096		397,096
	Granted	—	5,841		5,841		—	5,466		5,466
	Exercised	—	(1,822	)	(1,822	)	—	(1,782	)	(1,782	)
	LTIP Units Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	40,071		415,071		375,000	25,780		400,780
	LTIP Units Vested and Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	23,958		398,958		375,000	17,814		392,814

Noncontrolling_Interests

Non-controlling Interests	9 Months Ended
	Sep. 30, 2014
Noncontrolling Interest [Abstract]	'
Noncontrolling Interest Disclosure [Text Block]	'
	Non-controlling Interests
	Operating Partnership
	Non-controlling interests include the interest in the Operating Partnership owned by an affiliate of the Manager and certain related parties. On January 1, 2013, 212,000 OP Units were issued to the initial non-controlling interest member. Income allocated to the non-controlling interest is based on the non-controlling interest owners' ownership percentage of the Operating Partnership during the quarter, calculated using a daily weighted average of all common shares and convertible units outstanding during the quarter. Holders of OP Units are entitled to receive the same distributions that holders of common shares receive, and OP Units are convertible into common shares on a one-for-one basis following the expiration of a two-year holding period subject to additional limitations. OP Units are non-voting with respect to matters as to which common shareholders are entitled to vote. As of September 30, 2014, non-controlling interest related to the outstanding 212,000 OP Units represented an interest of approximately 0.6% in the Operating Partnership.
	EF SBC 2013-1 LLC
	Non-controlling interests also include the interest of a joint venture partner in a consolidated subsidiary of the Company, EF SBC 2013-1 LLC, or "EF SBC." EF SBC holds the Company's investments in certain distressed commercial mortgage loans. The joint venture partner participates in EF SBC on a pari passu basis with the Company at a predetermined percentage, and therefore participates proportionally in all income, expense, gains and losses of EF SBC. The joint venture partner makes capital contributions to EF SBC as new approved investments are purchased by EF SBC, and is generally entitled to distributions when investments are sold or otherwise disposed of. As of September 30, 2014 the joint venture partner's interest in EF SBC was $1.7 million, representing an approximately 5% interest in EF SBC.
	The joint venture partner's interest in EF SBC is not convertible into common shares of the Company or OP Units, nor is the joint venture partner entitled to receive distributions that holders of common shares of the Company receive.

Common_Share_Capitalization

Common Share Capitalization	9 Months Ended
	Sep. 30, 2014
Stockholders' Equity Note [Abstract]	'
Common Share Capitalization	'
	Common Share Capitalization
	Dividends are declared and paid on a quarterly basis in arrears. During the three month periods ended September 30, 2014 and 2013 the Board of Directors authorized second quarter dividends of $0.77 per share. During the nine month periods ended September 30, 2014 and 2013, the Board of Directors authorized three dividends totaling $2.31 per share and $3.06 per share, respectively. Total dividends paid during the three month periods ended September 30, 2014 and 2013 were $20.1 million and $20.0 million, respectively. Total dividends paid during the nine month periods ended September 30, 2014 and 2013 were $60.2 million and $72.0 million, respectively.
	On September 8, 2014 the Company completed a follow-on offering of eight million of its common shares. The offering generated net proceeds, after underwriters' discounts and offering costs, in the amount of $188.2 million.
	Detailed below is a roll-forward of the Company's common shares outstanding for the three month periods ended September 30, 2014 and 2013:
		Three Month	Three Month
		Period Ended	Period Ended
		30-Sep-14	30-Sep-13
	Common Shares Outstanding	25,441,750	25,412,011
	(6/30/2014 and 6/30/2013, respectively)
	Share Activity:
	Shares issued	8,000,000	—
	Shares issued in connection with incentive fee payment	—	5,144
	Director LTIP units exercised	1,822	1,782
	Common Shares Outstanding	33,443,572	25,418,937
	(9/30/2014 and 9/30/2013, respectively)
	Detailed below is a roll-forward of the Company's common shares outstanding for the nine month periods ended September 30, 2014 and 2013:
		Nine Month	Nine Month
		Period Ended	Period Ended
		30-Sep-14	30-Sep-13
	Common Shares Outstanding	25,428,186	20,370,469
	(12/31/2013 and 12/31/2012, respectively)
	Share Activity:
	Shares issued	8,000,000	5,000,000
	Shares issued in connection with incentive fee payment	13,564	46,686
	Director LTIP units exercised	1,822	1,782
	Common Shares Outstanding	33,443,572	25,418,937
	(9/30/2014 and 9/30/2013, respectively)
	If all LTIP and OP Units that have been previously issued were to become fully vested and exchanged for common shares as of September 30, 2014 and 2013, the Company's issued and outstanding common shares would increase to 34,070,643 and 26,031,717 shares, respectively, resulting in equity per share of $23.79 and $24.19, respectively, as of September 30, 2014 and 2013.
	On August 4, 2011, the Company's Board of Directors approved the adoption of a $10 million share repurchase program. The program, which is open-ended in duration, allows the Company to make repurchases from time to time on the open market or in negotiated transactions. Repurchases are at the Company's discretion, subject to applicable law, share availability, price, and the Company's financial performance, among other considerations. As of September 30, 2014, the Company has repurchased 217,619 shares under its current share repurchase program at an aggregate cost of $4.5 million, or at an average per share price of $20.59.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	The components of the computation of basic and diluted EPS were as follows:
			Three Month Period Ended						Nine Month Period Ended
			September 30,						September 30,
			2014			2013			2014			2013
	(In thousands except share amounts)
	Net increase in shareholders' equity resulting from operations		$	12,948		$	11,727		$	56,530		$	63,662
	Add: Net increase in equity resulting from operations attributable to the participating non-controlling interest(1)		98			96			456			612
	Net increase in equity resulting from operations related to common shares, LTIP unit holders, and participating non-controlling interest		13,046			11,823			56,986			64,274
	Net increase in shareholders' equity resulting from operations available to common share and LTIP unit holders:
	Net increase in shareholders' equity resulting from operations– common shares		12,756			11,546			55,653			62,579
	Net increase in shareholders' equity resulting from operations– LTIP units		192			181			877			1,083
	Dividends Paid(2):
	Common shareholders		(19,590		)	(19,571		)	(58,934		)	(70,152		)
	LTIP unit holders		(317		)	(306		)	(950		)	(1,216		)
	Non-controlling interest		(163		)	(163		)	(326		)	(648		)
	Total dividends paid to common shareholders, LTIP unit holders, and non-controlling interest		(20,070		)	(20,040		)	(60,210		)	(72,016		)
	Undistributed (Distributed in excess of) earnings:
	Common shareholders		(6,834		)	(8,025		)	(3,281		)	(7,573		)
	LTIP unit holders		(125		)	(125		)	(73		)	(133		)
	Non-controlling interest		(65		)	(67		)	130			(36		)
	Total undistributed (distributed in excess of) earnings attributable to common shareholders, LTIP unit holders, and non-controlling interest		$	(7,024	)	$	(8,217	)	$	(3,224	)	$	(7,742	)
	Weighted average shares outstanding (basic and diluted):
	Weighted average common shares outstanding		27,442,146			25,415,809			26,113,839			22,968,604
	Weighted average participating LTIP units		411,926			397,897			411,346			397,366
	Weighted average non-controlling interest units		212,000			212,000			212,000			212,000
	Basic earnings per common share:
	Distributed		$	0.77		$	0.77		$	2.31		$	3.06
	Undistributed (Distributed in excess of)		(0.31		)	(0.32		)	(0.18		)	(0.33		)
			$	0.46		$	0.45		$	2.13		$	2.73
	Diluted earnings per common share:
	Distributed		$	0.77		$	0.77		$	2.31		$	3.06
	Undistributed (Distributed in excess of)		(0.31		)	(0.32		)	(0.18		)	(0.33		)
			$	0.46		$	0.45		$	2.13		$	2.73
	-1	For the three and nine month periods ended September 30, 2014, excludes net increase in equity resulting from operations of $0.1 million and $0.2 million, respectively attributable to the joint venture partner, which has a non-participating interest as described in Note 9.
	-2	The Company pays quarterly dividends in arrears, so a portion of the dividends paid in each calendar year relate to the prior year's earnings.

Counterparty_Risk

Counterparty Risk	9 Months Ended
	Sep. 30, 2014
Risks and Uncertainties [Abstract]	'
Counterparty Risk	'
	Counterparty Risk
	As of September 30, 2014, investments with an aggregate value of approximately $1.56 billion were held with dealers as collateral for various reverse repurchase agreements. The investments held as collateral include securities in the amount of $27.0 million that were sold prior to period end but for which such sale had not yet settled as of September 30, 2014.
	The following table details the percentage of such collateral held by counterparties who hold greater than 15% of the aggregate $1.56 billion in collateral for various reverse repurchase agreements as of September 30, 2014. In addition to the below, unencumbered investments, on a settlement date basis, of approximately $332.2 million were held in custody at the Bank of New York Mellon Corporation.
	Dealer	% of Total
		Collateral on
		Reverse Repurchase
		Agreements
	Royal Bank of Canada	19%
	The following table details the percentage of collateral amounts held by dealers who hold greater than 15% of the Company's Due from Brokers, included as of September 30, 2014:
	Dealer	% of Total Due
		from Brokers
	Morgan Stanley	50%
	J.P. Morgan Securities Inc.	24%
	The following table details the percentage of amounts held by dealers who hold greater than 15% of the Company's Receivable for securities sold as of September 30, 2014:
	Dealer	% of Total Receivable
		for Securities Sold
	CS First Boston	26%
	Citigroup	21%
	In addition the Company held cash and cash equivalents of $129.1 million and $183.5 million as of September 30, 2014 and December 31, 2013, respectively. The below table details the concentration of cash and cash equivalents held by each counterparty:
		As of
	Counterparty	September 30, 2014	31-Dec-13
	Bank of New York Mellon Corporation	100%	73%
	JP Morgan Prime Money Market Premier Fund	—%	27%

Offsetting_of_Assets_and_Liabi

Offsetting of Assets and Liabilities	9 Months Ended
	Sep. 30, 2014
Offsetting of Assets and Liabilities [Abstract]	'
Offsetting of Assets and Liabilities [Text Block]	'
	Offsetting of Assets and Liabilities
	The Company records financial instruments at fair value as described in Note 3. All financial instruments are recorded on a gross basis on the Condensed Statement of Assets, Liabilities, and Equity. In connection with its derivative, repurchase and reverse repurchase agreements, and the related trading agreements, the Company and its counterparties are required to pledge collateral. Cash or other collateral is exchanged as required with each of the Company's counterparties in connection with open derivative positions, repurchase agreements, and reverse repurchase agreements.
	The following tables present information about certain assets and liabilities representing financial instruments as of September 30, 2014 and December 31, 2013. The Company has not entered into master netting agreements with any of its counterparties. Certain of the Company's repurchase and reverse repurchase agreements and financial derivative transactions are governed by underlying agreements that generally provide a right of offset in the event of default or in the event of a bankruptcy of either party to the transaction.
	September 30, 2014:
	Description		Amount of Assets (Liabilities) Presented in the Consolidated Statements of Assets, Liabilities, and Equity(1)			Financial Instruments Available for Offset			Financial Instruments Transferred or Pledged as Collateral(2)(3)		Cash Collateral (Received) Pledged(2)(3)			Net Amount
	(In thousands)
	Assets
	Financial derivatives–assets		$	56,366		$	(22,108	)	$	—	$	(11,773	)	$	22,484
	Repurchase agreements		47,039			(47,039		)	—		—			—
	Liabilities
	Financial derivatives–liabilities		(47,331		)	22,108			—		25,223			—
	Reverse repurchase agreements		(1,395,132		)	47,039			1,333,817		14,276			—
	December 31, 2013:
	Description		Amount of Assets (Liabilities) Presented in the Consolidated Statements of Assets, Liabilities, and Equity(1)			Financial Instruments Available for Offset			Financial Instruments Transferred or Pledged as Collateral(2)(3)		Cash Collateral (Received) Pledged(2)(3)			Net Amount
	(In thousands)
	Assets
	Financial derivatives–assets		$	59,664		$	(24,162	)	$	—	$	(17,273	)	$	18,229
	Repurchase agreements		27,962			(27,962		)	—		—			—
	Liabilities
	Financial derivatives–liabilities		(44,791		)	24,162			—		20,629			—
	Reverse repurchase agreements		(1,236,166		)	27,962			1,205,278		2,926			—
	-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	For the purpose of this presentation, for each row the total amount of financial instruments transferred or 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 transferred or pledged as collateral related to our reverse repurchase agreements and cash collateral pledged on our financial derivative liabilities. Total financial instruments transferred or pledged as collateral on our reverse repurchase agreements as of September 30, 2014 and December 31, 2013 were $1.58 billion and $1.48 billion, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $24.4 million and $3.2 million, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $27.7 million and $36.4 million, respectively.
	-3	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.

Contingencies_And_Commitments

Contingencies And Commitments	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Contingencies and Commitments	'
	Contingencies and Commitments
	The Company provides current directors and officers with a limited indemnification against liabilities arising in connection with the performance of their duties to the Company.
	In the normal course of business the Company may also enter into contracts that contain a variety of representations, warranties and general indemnifications. The Company's maximum exposure under these arrangements, including future claims that may be made against the Company that have not yet occurred, is unknown. The Company has not incurred any costs to defend lawsuits or settle claims related to these indemnification agreements. The Company has no liabilities recorded for these agreements as of September 30, 2014 and December 31, 2013.

Financial_Highlights

Financial Highlights	9 Months Ended
	Sep. 30, 2014
Financial Highlights [Abstract]	'
Financial Highlights	'
	Financial Highlights
	Results of Operations for a Share Outstanding Throughout the Periods:
		Three Month Period Ended			Three Month Period Ended			Nine Month Period Ended			Nine Month Period Ended
		30-Sep-14			30-Sep-13			30-Sep-14			30-Sep-13
	Beginning Shareholders' Equity Per Share (6/30/2014, 6/30/2013, 12/31/2013, and 12/31/2012, respectively)	$	24.53		$	24.92		$	24.4		$	24.86
	Net Investment Income	0.46			0.57			1.52			1.62
	Net Realized/Unrealized Gains (Losses)	0.02			(0.10		)	0.67			1.18
	Results of Operations Attributable to Equity	0.48			0.47			2.19			2.8
	Less: Results of Operations Attributable to Non-controlling Interests	(0.01		)	—			(0.03		)	(0.03		)
	Results of Operations Attributable to Shareholders' Equity(1)	0.47			0.47			2.16			2.77
	Dividends Paid to Common Shareholders	(0.77		)	(0.77		)	(2.31		)	(3.06		)
	Weighted Average Share Impact on Dividends Paid (2)	0.03			(0.02		)	—			(0.08		)
	Accretive (Dilutive) Effect of Share Issuances (Net of Offering Costs), Share Repurchases, and Adjustments to Non-controlling Interest	(0.18		)	(0.01		)	(0.17		)	0.1
	Ending Shareholders' Equity Per Share (9/30/2014, 9/30/2013, 9/30/2014, and 9/30/2013, respectively)(3)	$	24.08		$	24.59		$	24.08		$	24.59
	Shares Outstanding, end of period	33,443,572			25,418,937			33,443,572			25,418,937
	-1	Calculated based on average common shares outstanding and can differ from the calculation for EPS (See Note 11).
	-2	Per share impact on dividends paid relating to share issuances/repurchases during the period as well as dividends paid to LTIP and OP Unit holders.
	-3	If all LTIP units and OP Units previously issued were vested and exchanged for common shares as of September 30, 2014 and 2013, shareholders' equity per share would be $23.79 and $24.19, respectively.
	Total Return:
	The Company calculates its total return two ways, one based on its reported net asset value and the other based on its publicly-traded share price.
	The following table illustrates the Company's total return for the periods presented based on net asset value:
	Net Asset Value Based Total Return for a Shareholder: (1)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Total Return	1.32%		1.82%	8.44%		11.57%
	-1	Total return is calculated assuming reinvestment of distributions at shareholders' equity per share during the period.
	Supplemental Information—Net Asset Value Based Total Return for a Shareholder assuming conversion of all LTIP and OP Units: (1)
		Three Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-14
	Total Return	0.08%		7.11%
	-1	Total return is calculated assuming all LTIP and OP Units had been converted into common shares at September 30, 2014. LTIP and OP Units outstanding at September 30, 2014 totaled 627,071 and represent 1.84% of total common shares and LTIP and OP Units outstanding as of that date.
	Market Based Total Return for a Shareholder:
	For the three month periods ended September 30, 2014 and 2013, the Company's market based total return based on the closing price as reported by the New York Stock Exchange was (4.54)% and 1.97%, respectively. For the nine month periods ended September 30, 2014 and 2013, the Company's market based total return based on the closing price as reported by the New York Stock Exchange was 7.65% and 44.75%, respectively. Calculation of market based total return assumes the reinvestment of dividends at the closing price as reported by the New York Stock Exchange as of the ex-date.
	Net Investment Income Ratio to Average Equity: (1)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Net Investment Income (2)(3)	8.02%		9.99%	8.27%		8.89%
	-1	Average equity is calculated using month end values.
	-2	Includes incentive fee in calculation which can vary substantially over periods.
	-3	Includes all items of income and expense on an annualized basis except for incentive fee expense which is included on a non-annualized basis.
	Expense Ratios to Average Equity: (1)(2)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Operating expenses before incentive fee, interest expense, and other investment related expenses	-3.03%		-2.67%	-2.86%		-2.77%
	Incentive fee	-0.21%		-0.32%	-0.22%		-0.91%
	Interest expense and other investment related expenses	-1.98%		-2.11%	-2.08%		-1.94%
	Total Expenses	-5.22%		-5.10%	-5.16%		-5.62%
	-1	Average equity is calculated using month end values.
	-2	Ratios are annualized except for the incentive fee which is not annualized.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	On November 4, 2014, the Company's Board of Directors approved a dividend for the third quarter of 2014 in the amount of $0.77 per share payable on December 15, 2014 to shareholders of record as of December 1, 2014.

Significant_Accounting_Policie1

Significant Accounting Policies (Policy)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation: The Company's unaudited interim consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America, or "U.S. GAAP," for investment companies, ASC 946, Financial Services—Investment Companies ("ASC 946"). ASC 946 requires, among other things, that investments be reported at fair value in the financial statements. The consolidated financial statements include the accounts of the Company, the Operating Partnership, and its subsidiaries. All inter-company balances and transactions have been eliminated. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Interim results are not necessarily indicative of the results that may be expected for the entire fiscal year. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2013.
Valuation	'
	Valuation: The Company applies ASC 820-10, Fair Value Measurement and Disclosures ("ASC 820-10"), to its holdings of financial instruments. ASC 820-10 establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are defined as follows:
	•	Level 1—inputs to the valuation methodology are observable and reflect quoted prices (unadjusted) for identical assets or liabilities in active markets,
	•	Level 2—inputs to the valuation methodology other than quoted prices included in Level 1 are observable for the asset or liability, either directly or indirectly, and
	•	Level 3—inputs to the valuation methodology are unobservable and significant to the fair value measurement.
	A financial instrument's categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in these securities.
Securities Transactions and Investment Income	'
	Securities Transactions and Investment Income: Purchases and sales of investments are generally recorded on trade date. Realized and unrealized gains and losses are calculated based on identified cost. Interest income, which includes accretion of discounts and amortization of premiums on mortgage-backed securities, or "MBS," ABS, commercial and residential mortgage loans, U.S. Treasury securities, sovereign debt, and securitized debt, is recognized over the life of the investment using the effective interest method. For purposes of determining the effective interest rate, management estimates the future expected cash flows of its investment holdings based on assumptions including, but not limited to, assumptions for future prepayment rates, default rates and loss severities (each of which may in turn incorporate various macro-economic assumptions, such as future housing prices). These assumptions are re-evaluated not less than quarterly and require the use of a significant amount of judgment. Principal write-offs are generally treated as realized losses. The Company uses the cost recovery method for certain non-performing commercial and residential mortgage loans that have principal and/or interest payments that are more than 90 days past due and for which future cash flows are not estimable.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents: Cash and cash equivalents include amounts held in an interest bearing overnight account and money market funds.
Financial Derivatives	'
	Financial Derivatives: The Company enters into various types of financial derivatives. The Company's derivatives are predominantly subject to bilateral collateral arrangements or clearing in accordance with the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. The Company may be required to deliver or receive cash or securities as collateral upon entering into derivative transactions. In addition, changes in the relative value of derivative transactions may require the Company or the counterparty to post or receive additional collateral. In the case of cleared derivatives, the clearinghouse becomes the Company's counterparty and a futures commission merchant, or "FCM," acts as an intermediary between the Company and the clearinghouse with respect to all facets of the related transaction, including the posting and receipt of required collateral. Cash collateral received by the Company is reflected on the Consolidated Statement of Assets, Liabilities, and Equity as "Due to Brokers." Conversely, cash collateral posted by the Company is reflected as "Due from Brokers" on the Consolidated Statement of Assets, Liabilities, and Equity. The major types of derivatives utilized by the Company are swaps, futures, options and swaptions, and forwards.
	Swaps: The Company may enter into various types of swaps, including interest rate swaps, credit default swaps, and total return swaps. The primary risk associated with the Company's interest rate swap activity is interest rate risk. The primary risk associated with the Company's credit default swaps is credit risk and the primary risk associated with the Company's total return swap activity is equity market risk.
	The Company is subject to interest rate risk exposure in the normal course of pursuing its investment objectives. Primarily to help mitigate interest rate risk, the Company enters into interest rate swaps. Interest rate swaps are contractual agreements whereby one party pays a floating rate of interest on a notional principal amount and receives a fixed rate on the same notional principal, or vice versa, for a fixed period of time. Interest rate swaps change in value with movements in interest rates.
	The Company enters into credit default swaps. A credit default swap is a contract under which one party agrees to compensate another party for the financial loss associated with the occurrence of a "credit event" in relation to a "reference amount" or notional value of a credit obligation (usually a bond, loan, or a basket of bonds or loans). The definition of a credit event often varies from contract to contract. A credit event may occur (i) when the underlying reference asset(s) fails to make scheduled principal or interest payments to its holders, (ii) with respect to credit default swaps referencing mortgage/asset-backed securities and indices, when the underlying reference obligation is downgraded below a certain rating level, or (iii) with respect to credit default swaps referencing corporate entities and indices, upon the bankruptcy of the underlying reference obligor. The Company typically writes (sells) protection to take a "long" position or purchases (buys) protection to take a "short" position with respect to underlying reference assets or to hedge exposure to other investment holdings.
	The Company enters into total return swaps in order to take a "long" or "short" position with respect to an underlying reference asset. The Company is subject to market price volatility of the underlying reference asset. A total return swap involves commitments to pay interest in exchange for a market-linked return based on a notional value. To the extent that the total return of the security, group of securities or index underlying the transaction exceeds or falls short of the offsetting interest obligation, the Company will receive a payment from or make a payment to the counterparty.
	Swaps change in value with movements in interest rates or total return of the reference securities. During the term of swap contracts, changes in value are recognized as unrealized gains or losses. When a contract is terminated, the Company realizes a gain or loss equal to the difference between the proceeds from (or cost of) the closing transaction and the Company's basis in the contract, if any. Periodic payments or receipts required by swap agreements are recorded as unrealized gains or losses when accrued and realized gains or losses when received or paid. Upfront payments paid and/or received by the Company to open swap contracts are recorded as an asset and/or liability on the Consolidated Statement of Assets, Liabilities, and Equity and are recorded as a realized gain or loss on the termination date.
	Futures Contracts: A futures contract is an exchange-traded agreement to buy or sell an asset for a set price on a future date. The Company enters into Eurodollar and/or U.S. Treasury Note futures contracts to hedge its interest rate risk. Initial margin deposits are made upon entering into futures contracts and can be either in the form of cash or securities. During the period the futures contract is open, changes in the value of the contract are recognized as unrealized gains or losses by marking-to-market to reflect the current market value of the contract. Variation margin payments are made or received periodically, depending upon whether unrealized losses or gains are incurred. When the contract is closed, the Company records a realized gain or loss equal to the difference between the proceeds of the closing transaction and the Company's basis in the contract.
	Options: The Company may purchase or write put or call options or enter into swaptions. Generally, the Company enters into options primarily to help mitigate overall market, credit, or interest rate risk depending on the type of option. When the Company purchases an option, the option asset is initially recorded at an amount equal to the premium paid, if any, and is subsequently marked-to-market. Premiums paid for purchasing options that expire unexercised are recognized on the expiration date as realized losses. If an option is exercised, the premium paid is subtracted from the proceeds of the sale or added to the cost of the purchase to determine whether the Company has realized a gain or loss on the related transaction. When the Company writes an option, the option liability is initially recorded at an amount equal to the premium received, if any, and is subsequently marked-to-market. Premiums received for writing options that expire unexercised are recognized on the expiration date as realized gains. If an option is exercised, the premium received is subtracted from the cost of the purchase or added to the proceeds of the sale to determine whether the Company has realized a gain or loss on the related investment transaction. When the Company enters into a closing transaction, the Company will realize a gain or loss depending upon whether the amount from the closing transaction is greater or less than the premiums paid or received. The Company may also enter into options that contain forward-settling premiums. In this case, no money is exchanged upfront. Instead the agreed-upon premium is paid by the buyer upon expiration of the option, regardless of whether or not the option is exercised.
	Forward Currency Contracts: A forward currency contract is an agreement between two parties to purchase or sell a specific quantity of currency with the delivery and settlement at a specific future date and exchange rate. During the period the forward currency contract is open, changes in the value of the contract are recognized as unrealized gains or losses. When the contract is settled, the Company records a realized gain or loss equal to the difference between the proceeds of the closing transaction and the Company's basis in the contract.
	Financial derivatives disclosed on the Consolidated Condensed Schedule of Investments include: credit default swaps on asset-backed securities, credit default swaps on asset-backed indices, credit default swaps on corporate bond indices, credit default swaps on corporate bonds, interest rate swaps, total return swaps, futures, foreign currency forwards, and options contracts.
	Financial derivative assets are included in Financial derivatives—assets, at fair value on the Consolidated Statement of Assets, Liabilities, and Equity. Financial derivative liabilities are included in Financial derivatives—liabilities, at fair value on the Consolidated Statement of Assets, Liabilities, and Equity. In addition, financial derivative contracts are summarized by type on the Consolidated Condensed Schedule of Investments.
Investments Sold Short	'
	Investments Sold Short: When the Company sells securities short, it typically satisfies its security delivery settlement obligation by obtaining the security sold from the same or a different counterparty. The Company generally is required to deliver cash or securities as collateral to the counterparty for the Company's obligation to return the borrowed security. The amount by which the market value of the obligation falls short of or exceeds the proceeds from the short sale is treated as an unrealized gain or loss, respectively. A realized gain or loss will be recognized upon the termination of a short sale if the market price is less or greater than the proceeds originally received.
Reverse Repurchase Agreements and Repurchase Agreements	'
	Reverse Repurchase Agreements and Repurchase Agreements: The Company enters into reverse repurchase agreements with third-party broker-dealers whereby it sells securities under agreements to be repurchased at an agreed-upon price and date. The Company also enters into repurchase agreement transactions with third-party broker-dealers whereby it purchases securities under agreements to resell at an agreed-upon price and date. In general, securities received pursuant to repurchase agreements are delivered to counterparties of short sale transactions. The Company accounts for reverse repurchase agreements as collateralized borrowings, with the initial sale price representing the amount borrowed, and with the future repurchase price consisting of the amount borrowed plus interest, at the implied interest rate of the reverse repurchase agreement, on the amount borrowed over the term of the reverse repurchase agreement. The interest rate on a reverse repurchase agreement or a repurchase agreement is based on competitive rates (or competitive market spreads, in the case of agreements with floating interest rates) at the time such agreement is entered into. When the Company enters into a reverse repurchase agreement, the lender establishes and maintains an account containing cash and securities having a value not less than the repurchase price, including accrued interest, of the reverse repurchase agreement. Assets held pursuant to repurchase agreements are reflected as assets on the Consolidated Statement of Assets, Liabilities, and Equity. Repurchase and reverse repurchase agreements that are conducted with the same counterparty may be reported on a net basis if they meet the requirements of ASC 210-20, Balance Sheet Offsetting. There are no repurchase and reverse repurchase agreements netted in the Company's consolidated financial statements. Reverse repurchase agreements are carried at their contractual amounts, which approximate fair value as the debt is short-term in nature.
Securitized Debt	'
	Securitized Debt: The Company entered into a resecuritization transaction in January 2012, which is accounted for as a collateralized borrowing. The asset contributed to the securitization was not derecognized but rather, the liability issued by the securitization was recorded to reflect the term financing of the re-securitized asset. Under ASC 825-10, the Company has elected to carry securitized debt at fair value.
When-Issued/Delayed Delivery Securities	'
	When-Issued/Delayed Delivery Securities: The Company may purchase or sell securities on a when-issued or delayed delivery basis. Securities purchased or sold on a when-issued basis are traded for delivery beyond the normal settlement date at a stated price or yield, and no income accrues to the purchaser prior to settlement. Purchasing or selling securities on a when-issued or delayed delivery basis involves the risk that the market price or yield at the time of settlement may be lower or higher than the agreed-upon price or yield, in which case a realized loss may be incurred.
	The Company transacts in the forward settling To Be Announced MBS ("TBA") market. The Company typically does not take delivery of TBAs, but rather settles the associated receivable and payable with its trading counterparties on a net basis. Transactions with the same counterparty for the same TBA that result in a reduction of the position are treated as extinguished. The market value of the securities that the Company is required to purchase pursuant to a TBA transaction may decline below the agreed-upon purchase price. Conversely, the market value of the securities that the Company is required to sell pursuant to a TBA transaction may increase above the agreed upon sale price. As part of its TBA activities, the Company may "roll" its TBA positions, whereby the Company may sell (buy) securities for delivery (receipt) in an earlier month and simultaneously contract to repurchase (sell) similar, but not identical, securities at an agreed-upon price on a fixed date in a later month (with the later-month price typically lower than the earlier-month price). The Company accounts for its TBA transactions (including those related to TBA rolls) as purchases and sales.
Investments in Operating Entities	'
	Investments in Operating Entities: The Company may make non-controlling investments in operating entities such as mortgage originators. Investments in such operating entities may be in the form of preferred and/or common equity, or debt. The Company carries its investments in such entities at fair value.
Offering Costs/Underwriters' Discount	'
	Offering Costs/Underwriters' Discount: Offering costs and underwriters' discount are charged against shareholders' equity.
LTIP Units	'
	LTIP Units: Long term incentive plan units ("LTIP units") have been issued to the Company's dedicated or partially dedicated personnel and independent directors as well as the Manager. Costs associated with LTIP units issued to dedicated or partially dedicated personnel and independent directors are amortized over the vesting period in accordance with ASC 718-10, Compensation—Stock Compensation. Costs associated with LTIP units issued to the Manager are amortized over the vesting period in accordance with ASC 505-50, Equity-Based Payments to Non-Employees. The vesting periods for units issued under the Ellington Incentive Plan for Individuals (the "Individual LTIP") to dedicated or partially dedicated personnel are typically one year and can be up to two years. The vesting periods of Individual LTIP units are typically one year for independent directors. The vesting period for units issued to the Manager under the Ellington Incentive Plan for Entities (the "Manager LTIP") occurred over a three year period that ended in August 2010. The cost of the Manager LTIP units fluctuated with the price per share until the vesting date, whereas the cost of the Individual LTIP units is based on the price per share at the initial grant date.
Non-controlling interest	'
	Non-controlling interests: Non-controlling interests include the interest in the Operating Partnership owned by an affiliate of the Manager and certain related parties and consist of units convertible into the Company's common shares. Non-controlling interests also include the interest of a joint venture partner in a consolidated subsidiary. The joint venture partner's interest does not consist of units convertible into the Company's common shares. The Company adjusts the non-controlling interests owned by an affiliate of the Manager and certain related parties to align their carrying value with the share of total outstanding operating partnership units ("OP Units") issued by the Operating Partnership to the non-controlling interest. Any such adjustments are reflected in "Adjustment to non-controlling interest" on the Consolidated Statement of Changes in Equity. See Note 9 for further discussion of non-controlling interests.
Dividends	'
	Dividends: Dividends payable by the Company are recorded in the consolidated financial statements on the ex-dividend date. Dividends are typically declared and paid on a quarterly basis in arrears.
Shares Repurchased	'
	Shares Repurchased: Common shares that are repurchased by the Company subsequent to issuance decrease total number of shares outstanding and issued.
Earnings Per Share ("EPS")	'
	Earnings Per Share ("EPS"): Basic EPS is computed using the two class method by dividing net increase (decrease) in shareholders' equity resulting from operations after adjusting for the impact of LTIP units deemed to be participating securities, by the weighted average number of common shares outstanding calculated including LTIP units. Because the Company's LTIP units are deemed to be participating securities, they are included in the calculation of basic and diluted EPS. OP Units relating to a non-controlling interest are also considered participating securities and, accordingly, are included in the calculation of both basic and diluted EPS.
Foreign Currency	'
	Foreign Currency: Assets and liabilities denominated in foreign currencies are translated into U.S. dollars at current exchange rates at the following dates: (i) assets, liabilities, and unrealized gains/losses—at the valuation date; and (ii) income, expenses, and realized gains/losses—at the accrual/transaction date. The Company isolates the portion of realized and change in unrealized gain (loss) resulting from changes in foreign currency exchange rates on investments and financial derivatives from the fluctuations arising from changes in fair value of investments and financial derivatives held. Changes in realized and change in unrealized gain (loss) due to foreign currency are included in Foreign currency transactions and Foreign currency translation, respectively, on the Consolidated Statement of Operations.
Income Taxes	'
	Income Taxes: The Company intends to be treated as a partnership for U.S. federal income tax purposes. Certain of the Company's subsidiaries are not consolidated for U.S. federal income tax purposes, but are also treated as partnerships. In general, partnerships are not subject to entity-level tax on their income, but the income of a partnership is taxable to its owners on a flow-through basis. As of December 31, 2013, a subsidiary of the Company has elected to be treated as a corporation for U.S. federal income tax purposes. To date, this subsidiary has recognized a small loss.
	The Company follows the provisions of ASC 740-10, Income Taxes ("ASC 740-10"), which requires management to determine whether a tax position of the Company is more likely than not to be sustained upon examination by the applicable taxing authority, including resolution of any related appeals, based on the technical merits of the position. The Company did not have any additions to unrecognized tax benefits resulting from tax positions related either to the current period or to 2013, 2012, 2011, or 2010 (its open tax years), and no reductions resulting from tax positions of prior years or due to settlements, and thus had no unrecognized tax benefits or reductions since inception. The Company does not expect any change in unrecognized tax benefits within the next fiscal year. There were no amounts accrued for tax penalties or interest as of or during the periods presented in these consolidated financial statements.
	The Company may take positions with respect to certain tax issues which depend on legal interpretation of facts or applicable tax regulations. Should the relevant tax regulators successfully challenge any of such positions, the Company might be found to have a tax liability that has not been recorded in the accompanying consolidated financial statements. Also, management's conclusions regarding ASC 740-10 may be subject to review and adjustment at a later date based on factors including, but not limited to, further implementation guidance from the Financial Accounting Standards Board, or "FASB," and ongoing analyses of tax laws, regulations and interpretations thereof.
	To date there have been no material differences between the tax and U.S. GAAP bases of the Company's investments.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements: In June 2013, the FASB issued ASU 2013-08, Financial Services-Investment Companies ("ASC 946"). This update modifies the guidance for ASC 946 for determining whether an entity is an investment company for U.S. GAAP purposes. It requires entities that adopted AICPA Statement of Position 07-1 prior to its deferral to reassess whether they continue to meet the definition of an investment company for U.S. GAAP purposes. The guidance is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2013, with retrospective application; earlier application is prohibited. Management has determined that the Company still meets the definition of an investment company under ASC 946 and, as a result, the presentation of its financial statements has not changed as a result of this ASU.
	In January 2014, the FASB issued ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure ("ASU 2014-04"). This update modifies the guidance for ASC 310-40, Receivables-Troubled Debt Restructurings by Creditors. ASU 2014-04 clarifies when an in-substance repossession or foreclosure occurs that would require a transfer of a mortgage loan to real estate owned. Under ASU 2014-04, repossession or foreclosure is deemed to have occurred, and the creditor is considered to have received physical possession of residential real estate property collateralizing a mortgage loan when the creditor obtains legal title to the property upon completion of a foreclosure or the borrower conveys all interest in the property to the creditor through a deed in lieu of foreclosure or a similar legal agreement. ASU 2014-04 will become effective for annual and interim periods beginning after December 15, 2014 with early adoption permitted. ASU 2014-04 can be adopted using either a modified retrospective method or a prospective transition method with the cumulative effect being recognized in the beginning retained earnings of the earliest annual period for which ASU 2014-04 is adopted. The Company elected to adopt ASU 2014-04 effective January 1, 2014; such adoption did not have a material impact on the financial statements.
	In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures ("ASU 2014-11"). This amends ASC 860, Transfers and Servicing ("ASC 860"), to require disclosure of repurchase-to maturity transactions to be accounted for as secured borrowings rather than sales of an asset, and transfers of financial assets with a contemporaneous repo will no longer be evaluated to determine whether they should be accounted for on a combined basis as forward contracts. The new guidance also prescribes additional disclosures particularly on the nature of collateral pledged under repurchase agreements accounted for as secured borrowings. ASU 2014-11 is effective for interim and annual periods beginning after December 15, 2014. The adoption of ASC 860, as amended by ASU 2014-11 is not expected to have a material impact on the Company's consolidated financial statements.

Valuation_Tables

Valuation (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule Of Financial Instruments	'
	The table below reflects the value of the Company's Level 1, Level 2, and Level 3 financial instruments at September 30, 2014:
	Description		Level 1				Level 2				Level 3				Total
	Assets:		(In thousands)
	Cash and cash equivalents		$	129,124			$	—			$	—			$	129,124
	Investments, at fair value-
	Agency residential mortgage-backed securities and U.S. Treasury securities		$	—			$	1,682,568			$	38,572			$	1,721,140
	Private label residential mortgage-backed securities		—				—				502,070				502,070
	Private label commercial mortgage-backed securities		—				—				46,317				46,317
	Commercial mortgage loans		—				—				29,852				29,852
	Residential mortgage loans		—				—				17,147				17,147
	Other asset-backed securities and loans		—				—				109,152				109,152
	Description		Level 1				Level 2				Level 3				Total
	Investments, at fair value- (continued):		(In thousands)
	Real estate owned		$	—			$	—			$	7,464			$	7,464
	Private corporate investments		—				—				7,686				7,686
	Total investments, at fair value		—				1,682,568				758,260				2,440,828
	Financial derivatives–assets, at fair value-
	Credit default swaps on asset-backed securities		—				—				12,788				12,788
	Credit default swaps on corporate bond indices		—				20,044				—				20,044
	Credit default swaps on asset-backed indices		—				2,304				—				2,304
	Interest rate swaps		—				19,964				—				19,964
	Total return swaps		—				29				—				29
	Swaptions		—				261				—				261
	Options		—				31				—				31
	Futures		549				—				—				549
	Forwards		—				396				—				396
	Total financial derivatives–assets, at fair value		549				43,029				12,788				56,366
	Repurchase agreements		—				47,039				—				47,039
	Total investments and financial derivatives–assets, at fair value and repurchase agreements		$	549			$	1,772,636			$	771,048			$	2,544,233
	Liabilities:
	Investments sold short, at fair value-
	Agency residential mortgage-backed securities		$	—			$	(1,158,892	)		$	—			$	(1,158,892	)
	Government debt		—				(43,646		)		—				(43,646		)
	Common stock		(19,356		)		—				—				(19,356		)
	Total investments sold short, at fair value		(19,356		)		(1,202,538		)		—				(1,221,894		)
	Financial derivatives–liabilities, at fair value-
	Credit default swaps on corporate bond indices		—				(23,629		)		—				(23,629		)
	Credit default swaps on corporate bonds		—				(2,695		)		—				(2,695		)
	Credit default swaps on asset-backed indices		—				(4,385		)		—				(4,385		)
	Credit default swaps on asset-backed securities		—				—				(378		)		(378		)
	Interest rate swaps		—				(15,766		)		—				(15,766		)
	Total return swaps		—				(40		)		—				(40		)
	Options		—				(164		)		—				(164		)
	Swaptions		—				(213		)		—				(213		)
	Futures		(61		)		—				—				(61		)
	Forwards		—				—				—				—
	Total financial derivatives–liabilities, at fair value		(61		)		(46,892		)		(378		)		(47,331		)
	Securitized debt(1)		—				—				(870		)		(870		)
	Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value		$	(19,417	)		$	(1,249,430	)		$	(1,248	)		$	(1,270,095	)
	-1	The asset subject to the resecuritization had a fair value of $2.3 million as of September 30, 2014, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.
	The table below reflects the value of the Company's Level 1, Level 2, and Level 3 financial instruments at December 31, 2013:
	(In thousands)
	Description		Level 1				Level 2				Level 3				Total
	Assets:
	Cash and cash equivalents		$	183,489			$	—			$	—			$	183,489
	Investments, at fair value-
	Agency residential mortgage-backed securities		$	—			$	989,842			$	40,504			$	1,030,346
	Private label residential mortgage-backed securities		—				—				580,772				580,772
	Private label commercial mortgage-backed securities		—				—				32,994				32,994
	Commercial mortgage loans		—				—				23,887				23,887
	Residential mortgage loans		—				—				24,062				24,062
	Other asset-backed securities		—				—				38,069				38,069
	Total investments, at fair value		—				989,842				740,288				1,730,130
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities		—				—				16,646				16,646
Credit default swaps on corporate bond indices		—				14,273				—				14,273
Credit default swaps on asset-backed indices		—				4,937				—				4,937
Interest rate swaps		—				23,553				—				23,553
Total return swaps		—				4				—				4
Options		—				251				—				251
Total financial derivatives–assets, at fair value		—				43,018				16,646				59,664
Repurchase agreements		—				27,962				—				27,962
Total investments and financial derivatives–assets, at fair value and repurchase agreements		$	—			$	1,060,822			$	756,934			$	1,817,756
Liabilities:
Investments sold short, at fair value-
Agency residential mortgage-backed securities		$	—			$	(811,957	)		$	—			$	(811,957	)
Government debt		—				(27,288		)		—				(27,288		)
Common stock		(6,369		)		—				—				(6,369		)
Total investments sold short, at fair value		(6,369		)		(839,245		)		—				(845,614		)
Financial derivatives–liabilities, at fair value-
Credit default swaps on corporate bond indices		—				(24,949		)		—				(24,949		)
Credit default swaps on asset-backed indices		—				(11,866		)		—				(11,866		)
Credit default swaps on asset-backed securities		—				—				(350		)		(350		)
Interest rate swaps		—				(5,064		)		—				(5,064		)
Total return swaps		—				(67		)		—				(67		)
Options		—				(84		)		—				(84		)
Futures		(2,373		)		—				—				(2,373		)
Forwards		—				(38		)		—				(38		)
Total financial derivatives–liabilities, at fair value		(2,373		)		(42,068		)		(350		)		(44,791		)
Securitized debt(1)		—				—				(983		)		(983		)
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value		$	(8,742	)		$	(881,313	)		$	(1,333	)		$	(891,388	)
-1	The asset subject to the resecuritization had a fair value of $2.3 million as of December 31, 2013, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.
Schedule Of Significant Unobservable Inputs, Qualitative Information	'
	The following table identifies the significant unobservable inputs that affect the valuation of the Company's Level 3 assets and liabilities as of September 30, 2014:
		Fair Value				Valuation		Unobservable Input		Range								Weighted
	Description					Technique				Min				Max				Average
		(In thousands)
	Private label residential mortgage-backed securities (1)	$	422,033			Market Quotes		Non Binding Indicative Price		$	1.96			$	109.91			$	76.65
	Other asset-backed securities and loans	102,804				Market Quotes		Non Binding Indicative Price		48				162				102.08
	Private label residential mortgage-backed securities	79,167				Discounted Cash Flows		Yield		3.6		%		16.1		%		7.3		%
								Projected Collateral Prepayments		7.6		%		83.6		%		40.1		%
								Projected Collateral Losses		3		%		45.2		%		13.1		%
								Projected Collateral Recoveries		0		%		25.5		%		8.3		%
								Projected Collateral Scheduled Amortization		0		%		79.5		%		38.5		%
																		100		%
	Private label commercial mortgage-backed securities	12,950				Discounted Cash Flows		Yield		14.5		%		28.4		%		22.7		%
								Projected Collateral Losses		0.2		%		1.1		%		0.8		%
								Projected Collateral Recoveries		2.8		%		14.1		%		8.4		%
								Projected Collateral Scheduled Amortization		84.9		%		97		%		90.8		%
																		100		%
	Other asset-backed securities and loans	6,348				Discounted Cash Flows		Yield		5.9		%		13.9		%		9.2		%
								Projected Collateral Prepayments		—		%		73.8		%		9.5		%
								Projected Collateral Losses		1.1		%		94.6		%		75.6		%
								Projected Collateral Recoveries		—		%		92.8		%		7.3		%
								Projected Collateral Scheduled Amortization		—		%		28		%		7.6		%
																		100		%
	Private label commercial mortgage-backed securities	33,367				Market Quotes		Non Binding Indicative Price		$	10.02			$	97.09			$	57.28
	Performing commercial mortgage loans	19,108				Discounted Cash Flows		Yield		10		%		19.7		%		17.5		%
	Non-performing commercial mortgage loans	10,744				Discounted Cash Flows		Yield		10.3		%		15		%		13.9		%
								Months to Resolution		3				28				7.9
	Non-performing residential mortgage loan pools and real estate owned	24,611				Discounted Cash Flows		Yield		6.5		%		12		%		7.4		%
								Months to Resolution		4				26				12.7
	Agency interest only residential mortgage-backed securities	35,069				Market Quotes		Non Binding Indicative Price		$	3.76			$	30.14			$	13.65
	Agency interest only residential mortgage-backed securities	3,503				Option Adjusted Spread ("OAS")		LIBOR OAS(2)		(44		)		1,401				671
								Projected Collateral Prepayments		57.2		%		100		%		77		%
								Projected Collateral Scheduled Amortization		0		%		42.8		%		23		%
																		100		%
	(continued)
		Fair Value				Valuation		Unobservable Input		Range								Weighted
	Description					Technique				Min				Max				Average
		(In thousands)
	Credit default swaps on asset-backed securities	12,410				Net Discounted Cash Flows		Projected Collateral Prepayments		18.7		%		56.9		%		32.2		%
								Projected Collateral Losses		15.8		%		46.4		%		31		%
								Projected Collateral Recoveries		7.6		%		16.9		%		12.5		%
								Projected Collateral Scheduled Amortization		15.9		%		42.1		%		24.3		%
																		100		%
	Preferred equity investment in commercial mortgage-related private partnership	5,000				Discounted Cash Flows		Yield		10.7		%		10.7		%		10.7		%
								Expected Holding Period (Months)		47.9				47.9				47.9
	Equity investment in mortgage originator	2,686				Recent Transactions		Transaction Price		N/A				N/A				N/A
	-1	Includes securitized debt with a fair value of $0.9 million as of September 30, 2014.
	-2	Shown in basis points.
	The following table identifies the significant unobservable inputs that affect the valuation of the Company's Level 3 assets and liabilities as of December 31, 2013:
		Fair Value				Valuation		Unobservable Input		Range								Weighted
	Description					Technique				Min				Max				Average
		(In thousands)
	Private label residential mortgage-backed securities and Other asset-backed securities(1)	$	550,701			Market Quotes		Non Binding Indicative Price		$	1.8			$	110.35			$	78.09
	Private label residential mortgage-backed securities	67,158				Discounted Cash Flows		Yield		3.8		%		20.5		%		8		%
								Projected Collateral Prepayments		6.9		%		64.5		%		29.7		%
								Projected Collateral Losses		4.3		%		35.2		%		17.4		%
								Projected Collateral Recoveries		0.3		%		17.1		%		9.1		%
								Projected Collateral Scheduled Amortization		14.1		%		87.3		%		43.8		%
																		100		%
	Private label commercial mortgage-backed securities	3,480				Discounted Cash Flows		Yield		9.2		%		18.2		%		13.5		%
								Projected Collateral Losses		0.2		%		0.2		%		0.2		%
								Projected Collateral Recoveries		15.4		%		15.4		%		15.4		%
								Projected Collateral Scheduled Amortization		84.4		%		84.4		%		84.4		%
																	100		%
Private label commercial mortgage-backed securities and commercial mortgage loans	34,489				Market Quotes		Non Binding Indicative Price		$	14.25			$	102.89			$	74.24
Performing commercial mortgage loans	8,788				Discounted Cash Flows		Yield		12.7		%		12.8		%		12.7		%
Non-performing commercial mortgage loans	10,123				Discounted Cash Flows		Yield		15		%		15		%		15		%
							Months to Resolution		5				7				6
Non-performing residential mortgage loan pools	24,062				Discounted Cash Flows		Yield		7.4		%		7.4		%		7.4		%
							Months to Resolution		16.3				16.3				16.3
Agency interest only residential mortgage-backed securities	38,783				Market Quotes		Non Binding Indicative Price		$	6.26			$	33.77			$	14.53
Agency interest only residential mortgage-backed securities	1,721				Option Adjusted Spread ("OAS")		LIBOR OAS(2)		349				645				422
							Projected Collateral Prepayments		49		%		58.1		%		51.2		%
							Projected Collateral Scheduled Amortization		41.9		%		51		%		48.8		%
																	100		%
Credit default swaps on asset-backed securities	16,296				Net Discounted Cash Flows		Projected Collateral Prepayments		19.3		%		59		%		29.9		%
							Projected Collateral Losses		15.5		%		47.8		%		34.8		%
							Projected Collateral Recoveries		8.2		%		15.2		%		13.1		%
							Projected Collateral Scheduled Amortization		15.7		%		41.2		%		22.2		%
																	100		%
-1	Includes securitized debt with a fair value of $1.0 million as of December 31, 2013.
-2	Shown in basis points.
Fair Value Measurement Using Significant Unobservable Inputs	'
	Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
	Three Month Period Ended September 30, 2013
	(In thousands)	Beginning				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
		Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
		June 30,				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-13
		2013				Premiums)
	Assets:
	Investments, at fair value-
	Agency residential mortgage-backed securities	$	27,397			$	(1,844	)		$	—			$	875			$	10,605		$	—		$	—	$	37,033
	Private label residential mortgage-backed securities	694,510				7,289				11,187				(5,865		)		106,194			(161,333		)	—		651,982
	Private label commercial mortgage-backed securities	23,906				161				647				139				21,760			(13,342		)	—		33,271
	Commercial mortgage loans	7,563				31				—				411				6,931			—			—		14,936
	Other asset-backed securities	39,840				(658		)		38				60				8,334			(2,359		)	—		45,255
	Total investments, at fair value	793,216				4,979				11,872				(4,380		)		153,824			(177,034		)	—		782,477
	Financial derivatives–assets, at fair value-
	Credit default swaps on asset-backed securities	21,134				—				(3,113		)		2,995				58			(3,459		)	—		17,615
	Total financial derivatives– assets, at fair value	21,134				—				(3,113		)		2,995				58			(3,459		)	—		17,615
	Total investments and financial derivatives–assets, at fair value	$	814,350			$	4,979			$	8,759			$	(1,385	)		$	153,882		$	(180,493	)	$	—	$	800,092
	Liabilities:
	Financial derivatives–liabilities, at fair value-
	Credit default swaps on asset-backed securities	$	(541	)		$	—			$	(2	)		$	222			$	—		$	2		$	—	$	(319	)
	Total financial derivatives– liabilities, at fair value	(541		)		—				(2		)		222				—			2			—		(319		)
	Securitized debt:
	Securitized debt	(1,168		)		(10		)		—				30				110			—			—		(1,038		)
	Total securitized debt	(1,168		)		(10		)		—				30				110			—			—		(1,038		)
	Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,709	)		$	(10	)		$	(2	)		$	252			$	110		$	2		$	—	$	(1,357	)
	Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
	Nine Month Period Ended September 30, 2014
	(In thousands)	Beginning				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
		Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
		December 31,				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-14
		2013				Premiums)
	Assets:
	Investments, at fair value-
	Agency residential mortgage-backed securities	$	40,504			$	(6,523	)		$	457			$	515			$	7,249		$	(3,630	)	$	—	$	38,572
	Private label residential mortgage-backed securities	580,772				15,359				34,862				(14,366		)		233,654			(348,211		)	—		502,070
	Private label commercial mortgage-backed securities	32,994				497				5,479				(842		)		95,665			(87,476		)	—		46,317
	Commercial mortgage loans	23,887				1,916				1,901				(673		)		32,117			(29,296		)	—		29,852
	Residential mortgage loans	24,062				878				878				823				1,148			(10,642		)	—		17,147
	Other asset-backed securities and loans	38,069				(3,444		)		184				(581		)		97,539			(22,615		)	—		109,152
	Real estate owned	—				—				7				212				7,792			(547		)	—		7,464
	Private corporate investments	—				—				—				(239		)		7,925			—			—		7,686
	Total investments, at fair value	740,288				8,683				43,768				(15,151		)		483,089			(502,417		)	—		758,260
	Financial derivatives–assets, at fair value-
	Credit default swaps on asset-backed securities	16,646				—				(2,135		)		2,379				530			(4,632		)	—		12,788
	Total financial derivatives– assets, at fair value	16,646				—				(2,135		)		2,379				530			(4,632		)	—		12,788
	Total investments and financial derivatives–assets, at fair value	$	756,934			$	8,683			$	41,633			$	(12,772	)		$	483,619		$	(507,049	)	$	—	$	771,048
	Liabilities:
	Financial derivatives–liabilities, at fair value-
	Credit default swaps on asset-backed securities	$	(350	)		$	—			$	(59	)		$	(28	)		$	—		$	59		$	—	$	(378	)
	Total financial derivatives– liabilities, at fair value	(350		)		—				(59		)		(28		)		—			59			—		(378		)
	Securitized debt:
	Securitized debt	(983		)		(14		)		—				(17		)		144			—			—		(870		)
	Total securitized debt	(983		)		(14		)		—				(17		)		144			—			—		(870		)
	Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,333	)		$	(14	)		$	(59	)		$	(45	)		$	144		$	59		$	—	$	(1,248	)
	Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
	Nine Month Period Ended September 30, 2013
	(In thousands)	Ending				Accreted				Net Realized				Change in				Purchases/			Sales/			Transfers In		Ending
		Balance as of December 31, 2012				Discounts /				Gain/				Net				Payments			Issuances			and/or Out		Balance as of September 30, 2013
						(Amortized				(Loss)				Unrealized										of Level 3
						Premiums)								Gain/(Loss)
	Assets:
	Investments, at fair value-
Agency residential mortgage-backed securities	$	6,644			$	(3,846	)		$	—			$	1,180			$	33,055		$	—		$	—	$	37,033
Private label residential mortgage-backed securities	528,366				20,401				30,977				11,518				363,056			(302,336		)	—		651,982
Private label commercial mortgage-backed securities	19,327				258				(477		)		2,612				58,928			(47,377		)	—		33,271
Commercial mortgage loans	9,546				58				482				497				9,481			(5,128		)	—		14,936
Other asset-backed securities	—				(775		)		569				(866		)		56,435			(10,108		)	—		45,255
Total investments, at fair value	563,883				16,096				31,551				14,941				520,955			(364,949		)	—		782,477
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	36,031				—				(404		)		(1,497		)		149			(16,664		)	—		17,615
Total financial derivatives– assets, at fair value	36,031				—				(404		)		(1,497		)		149			(16,664		)	—		17,615
Total investments and financial derivatives–assets, at fair value	$	599,914			$	16,096			$	31,147			$	13,444			$	521,104		$	(381,613	)	$	—	$	800,092
Liabilities:
Financial derivatives– liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(1	)		$	—			$	(59	)		$	(318	)		$	—		$	59		$	—	$	(319	)
Total financial derivatives– liabilities, at fair value	(1		)		—				(59		)		(318		)		—			59			—		(319		)
Securitized debt:
Securitized debt	(1,335		)		(31		)		—				36				292			—			—		(1,038		)
Total securitized debt	(1,335		)		(31		)		—				36				292			—			—		(1,038		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,336	)		$	(31	)		$	(59	)		$	(282	)		$	292		$	59		$	—	$	(1,357	)
Level 3—Fair Value Measurement Using Significant Unobservable Inputs:
Three Month Period Ended September 30, 2014
(In thousands)	Ending				Accreted				Net Realized				Change in Net				Purchases/			Sales/			Transfers In		Ending
	Balance as of				Discounts /				Gain/				Unrealized				Payments			Issuances			and/or Out		Balance as of
	30-Jun-14				(Amortized				(Loss)				Gain/(Loss)										of Level 3		30-Sep-14
					Premiums)
Assets:
Investments, at fair value-
Agency residential mortgage-backed securities	$	36,240			$	(2,188	)		$	286			$	492			$	4,695		$	(953	)	$	—	$	38,572
Private label residential mortgage-backed securities	485,902				4,770				3,684				(5,030		)		79,431			(66,687		)	—		502,070
Private label commercial mortgage-backed securities	28,047				145				1,089				(378		)		29,496			(12,082		)	—		46,317
Commercial mortgage loans	37,415				832				1,029				(382		)		8,113			(17,155		)	—		29,852
Residential mortgage loans	23,371				878				501				(131		)		(547		)	(6,925		)	—		17,147
Other asset-backed securities and loans	81,315				(2,791		)		(170		)		(637		)		43,353			(11,918		)	—		109,152
Real estate owned	1,641				—				18				229				6,033			(457		)	—		7,464
Private corporate investments	—				—				—				(239		)		7,925			—			—		7,686
Total investments, at fair value	693,931				1,646				6,437				(6,076		)		178,499			(116,177		)	—		758,260
Financial derivatives–assets, at fair value-
Credit default swaps on asset-backed securities	14,162				—				(2,860		)		3,004				75			(1,593		)	—		12,788
Total financial derivatives– assets, at fair value	14,162				—				(2,860		)		3,004				75			(1,593		)	—		12,788
Total investments and financial derivatives–assets, at fair value	$	708,093			$	1,646			$	3,577			$	(3,072	)		$	178,574		$	(117,770	)	$	—	$	771,048
Liabilities:
Financial derivatives–liabilities, at fair value-
Credit default swaps on asset-backed securities	$	(350	)		$	—			$	(20	)		$	(28	)		$	—		$	20		$	—	$	(378	)
Total financial derivatives– liabilities, at fair value	(350		)		—				(20		)		(28		)		—			20			—		(378		)
Securitized debt:
Securitized debt	(925		)		(1		)		—				(2		)		58			—			—		(870		)
Total securitized debt	(925		)		(1		)		—				(2		)		58			—			—		(870		)
Total financial derivatives– liabilities and securitized debt, at fair value	$	(1,275	)		$	(1	)		$	(20	)		$	(30	)		$	58		$	20		$	—	$	(1,248	)

To_Be_Announced_RMBS_Tables

To Be Announced RMBS (Tables)	9 Months Ended
	Sep. 30, 2014
To Be Announced RMBS [Abstract]	'
To Be Announced RMBS [Table Text Block]	'
	The below table details TBA assets, liabilities, and the respective related payables and receivables as of September 30, 2014 and December 31, 2013:
		As of
		September 30, 2014			31-Dec-13
	Assets:	(In thousands)
	TBA securities, at fair value (Current principal: $112,448 and $101,150, respectively)	$	111,624		$	96,856
	Receivable for securities sold relating to unsettled TBA sales	1,158,168			813,933
	Liabilities:
	TBA securities sold short, at fair value (Current principal: -$1,101,218 and -$784,888, respectively)	$	(1,158,892	)	$	(811,957	)
	Payable for securities purchased relating to unsettled TBA purchases	(112,286		)	(96,762		)
	Net short TBA securities, at fair value	(1,047,268		)	(715,101		)

Financial_Derivatives_Tables

Financial Derivatives (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Gains and Losses on Derivative Contracts	'
	Gains and losses on the Company's derivative contracts for the three and nine month periods ended September 30, 2014 and 2013 are summarized in the tables below:
	September 30, 2014:
	Derivative Type		Primary Risk		Net Realized				Change in Net			Net Realized			Change in Net
			Exposure		Gain/(Loss) for				Unrealized			Gain/(Loss) for			Unrealized
					the Three Month Period Ended				Gain/(Loss) for			the Nine Month Period Ended			Gain/(Loss) for
					30-Sep-14				the Three Month Period Ended			30-Sep-14			the Nine Month Period Ended
									30-Sep-14						30-Sep-14
	(In thousands)
	Financial derivatives–assets
	Credit default swaps on asset-backed securities		Credit		$	(2,860	)		$	3,004		$	(2,135	)	$	2,379
	Credit default swaps on asset-backed indices		Credit		(2,145		)		2,327			(4,261		)	2,367
	Credit default swaps on corporate bond indices		Credit		(1,459		)		414			653			(361		)
	Total return swaps		Equity Market		1,079				4			8,846			24
	Interest rate swaps		Interest Rates		1,953				191			1,904			(3,940		)
	Futures		Interest Rates		299				(2,023		)	1,266			550
	Forwards		Currency		2,218				345			2,722			396
	Other		Credit/		(60		)		(97		)	48			504
			Interest Rates
					(975		)		4,165			9,043			1,919
	Financial derivatives–liabilities
	Credit default swaps on asset-backed securities		Credit		(20		)		(28		)	(59		)	(28		)
	Credit default swaps on asset-backed indices		Credit		166				(55		)	2,608			(1,180		)
	Credit default swaps on corporate bond indices		Credit		(1,878		)		5,034			(7,639		)	8,948
	Credit default swaps on corporate bonds		Credit		369				(395		)	510			(620		)
	Total return swaps		Equity Market		(4,067		)		3			(5,041		)	27
	Interest rate swaps		Interest Rates		(2,218		)		174			(6,075		)	(7,539		)
	Futures		Interest Rates		39				2,650			14			2,315
	Forwards		Currency		(997		)		314			(1,926		)	38
	Other		Credit/		104				194			(510		)	(35		)
			Interest Rates/Equity Market
					(8,502		)		7,891			(18,118		)	1,926
	Total				$	(9,477	)		$	12,056		$	(9,075	)	$	3,845
	September 30, 2013:
	Derivative Type		Primary Risk		Net Realized				Change in Net			Net Realized			Change in Net
			Exposure		Gain/(Loss) for				Unrealized			Gain/(Loss) for			Unrealized
					the Three Month Period Ended				Gain/(Loss) for			the Nine Month Period Ended			Gain/(Loss) for
					30-Sep-13				the Three Month Period Ended			30-Sep-13			the Nine Month Period Ended
									30-Sep-13						30-Sep-13
	(In thousands)
	Financial derivatives–assets
	Credit default swaps on asset-backed securities		Credit		$	(3,113	)		$	2,995		$	(404	)	$	(1,497	)
	Credit default swaps on asset-backed indices		Credit		(181		)		(1,011		)	(4,302		)	2,503
	Credit default swaps on corporate bond indices		Credit		(84		)		44			(3		)	—
	Total return swaps		Equity Market		907				(112		)	911			15
	Interest rate swaps		Interest Rates		(512		)		(195		)	(229		)	15,768
	Futures		Interest Rates		255				970			103			975
	Other		Interest Rates		67				(41		)	67			(41		)
					(2,661		)		2,650			(3,857		)	17,723
	Financial derivatives–liabilities
	Credit default swaps on asset-backed securities		Credit		(2		)		222			(59		)	(318		)
	Credit default swaps on asset-backed indices		Credit		339				959			539			1,772
	Credit default swaps on corporate bond indices		Credit		(2,985		)		(1,959		)	(7,517		)	(1,759		)
	Total return swaps		Equity Market		(53		)		96			(448		)	43
	Interest rate swaps		Interest Rates		(10		)		(4,099		)	282			(2,997		)
	Futures		Interest Rates		(1,029		)		82			(1,673		)	70
	Other		Interest Rates/ Equity Market		(41		)		44			(41		)	44
					(3,781		)		(4,655		)	(8,917		)	(3,145		)
	Total				$	(6,442	)		$	(2,005	)	$	(12,774	)	$	14,578
Schedule of Credit Derivatives	'
	Written credit derivatives held by the Company at September 30, 2014 and December 31, 2013, are summarized below:
	Credit Derivatives		Amount at				Amount at
			30-Sep-14				December 31, 2013
	(In thousands)
	Fair Value of Written Credit Derivatives, Net		$	12,041			$	1,421
	Fair Value of Purchased Credit Derivatives Offsetting Written Credit Derivatives with Third Parties (1)		$	334			$	57
	Notional Amount of Written Credit Derivatives (2)		$	(140,013	)		$	(120,497	)
	Notional Amount of Purchased Credit Derivatives Offsetting Written Credit Derivatives with Third Parties (1)		$	1,910			$	249
	-1	Offsetting transactions with third parties include purchased credit derivatives which have the same reference obligation.
	-2	The notional value is the maximum amount that a seller of credit protection would be obligated to pay, and a buyer of credit protection would receive upon occurrence of a "credit event." Movements in the value of credit default swap transactions may require the Company or the counterparty to post or receive collateral. Amounts due or owed under credit derivative contracts with an International Swaps and Derivatives Association, or "ISDA," counterparty may be offset against amounts due or owed on other credit derivative contracts with the same ISDA counterparty. As a result, the notional amount of written credit derivatives involving a particular underlying reference asset or index has been reduced (but not below zero) by the notional amount of any contracts where the Company has purchased credit protection on the same reference asset or index with the same ISDA counterparty.

Borrowings_under_Reverse_Repur1

Borrowings under Reverse Repurchase Agreements (Tables)	9 Months Ended
	Sep. 30, 2014
Borrowings under Reverse Repurchase Agreements [Abstract]	'
Schedule of Repurchase Agreements [Table Text Block]	'
	The following table details the Company's outstanding borrowings under reverse repurchase agreements by remaining maturity as of September 30, 2014 and December 31, 2013:
	(In thousands)	30-Sep-14					31-Dec-13
				Weighted Average					Weighted Average
	Remaining Maturity	Outstanding		Interest Rate		Remaining Days to Maturity	Outstanding		Interest Rate		Remaining Days to Maturity
		Borrowings					Borrowings
	30 Days or Less	$	609,777	0.35	%	11	$	369,861	0.53	%	14
	31-60 Days	331,753		0.69	%	46	402,206		1.12	%	45
	61-90 Days	284,665		0.42	%	72	320,161		0.78	%	72
	91-120 Days	36,338		0.4	%	106	8,233		1.4	%	100
	121-150 Days	7,053		0.9	%	134	38,856		0.49	%	135
	151-180 Days	67,134		1.71	%	166	96,849		1.9	%	179
	>360 Days	58,412		2.41	%	723	—		—	%	—
		$	1,395,132	0.61	%	72	$	1,236,166	0.9	%	56

LongTerm_Incentive_Plan_Units_

Long-Term Incentive Plan Units (Tables)	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Roll-Forward of Company's LTIP Units Outstanding	'
	Detailed below is a roll-forward of the Company's LTIP units outstanding for the three month periods ended September 30, 2014 and 2013:
		Three Month Period Ended					Three Month Period Ended
		30-Sep-14					30-Sep-13
		Manager	Director/		Total		Manager	Director/		Total
			Employee					Employee
	LTIP Units Outstanding (6/30/2014 and 6/30/2013, respectively)	375,000	36,052		411,052		375,000	22,096		397,096
	Granted	—	5,841		5,841		—	5,466		5,466
	Exercised	—	(1,822	)	(1,822	)	—	(1,782	)	(1,782	)
	LTIP Units Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	40,071		415,071		375,000	25,780		400,780
	LTIP Units Vested and Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	23,958		398,958		375,000	17,814		392,814
	Detailed below is a roll-forward of the Company's LTIP units outstanding for the nine month periods ended September 30, 2014 and 2013:
		Nine Month Period Ended					Nine Month Period Ended
		30-Sep-14					30-Sep-13
		Manager	Director/		Total		Manager	Director/		Total
			Employee					Employee
	LTIP Units Outstanding (12/31/2013 and 12/31/2012, respectively)	375,000	36,052		411,052		375,000	22,096		397,096
	Granted	—	5,841		5,841		—	5,466		5,466
	Exercised	—	(1,822	)	(1,822	)	—	(1,782	)	(1,782	)
	LTIP Units Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	40,071		415,071		375,000	25,780		400,780
	LTIP Units Vested and Outstanding (9/30/2014 and 9/30/2013, respectively)	375,000	23,958		398,958		375,000	17,814		392,814

Common_Share_Capitalization_Ta

Common Share Capitalization (Tables)	9 Months Ended
	Sep. 30, 2014
Stockholders' Equity Note [Abstract]	'
Summary of Common Shares Outstanding	'
	Detailed below is a roll-forward of the Company's common shares outstanding for the three month periods ended September 30, 2014 and 2013:
		Three Month	Three Month
		Period Ended	Period Ended
		30-Sep-14	30-Sep-13
	Common Shares Outstanding	25,441,750	25,412,011
	(6/30/2014 and 6/30/2013, respectively)
	Share Activity:
	Shares issued	8,000,000	—
	Shares issued in connection with incentive fee payment	—	5,144
	Director LTIP units exercised	1,822	1,782
	Common Shares Outstanding	33,443,572	25,418,937
	(9/30/2014 and 9/30/2013, respectively)
	Detailed below is a roll-forward of the Company's common shares outstanding for the nine month periods ended September 30, 2014 and 2013:
		Nine Month	Nine Month
		Period Ended	Period Ended
		30-Sep-14	30-Sep-13
	Common Shares Outstanding	25,428,186	20,370,469
	(12/31/2013 and 12/31/2012, respectively)
	Share Activity:
	Shares issued	8,000,000	5,000,000
	Shares issued in connection with incentive fee payment	13,564	46,686
	Director LTIP units exercised	1,822	1,782
	Common Shares Outstanding	33,443,572	25,418,937
	(9/30/2014 and 9/30/2013, respectively)

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Computation Of Basic And Diluted EPS	'
	The components of the computation of basic and diluted EPS were as follows:
			Three Month Period Ended						Nine Month Period Ended
			September 30,						September 30,
			2014			2013			2014			2013
	(In thousands except share amounts)
	Net increase in shareholders' equity resulting from operations		$	12,948		$	11,727		$	56,530		$	63,662
	Add: Net increase in equity resulting from operations attributable to the participating non-controlling interest(1)		98			96			456			612
	Net increase in equity resulting from operations related to common shares, LTIP unit holders, and participating non-controlling interest		13,046			11,823			56,986			64,274
	Net increase in shareholders' equity resulting from operations available to common share and LTIP unit holders:
	Net increase in shareholders' equity resulting from operations– common shares		12,756			11,546			55,653			62,579
	Net increase in shareholders' equity resulting from operations– LTIP units		192			181			877			1,083
	Dividends Paid(2):
	Common shareholders		(19,590		)	(19,571		)	(58,934		)	(70,152		)
	LTIP unit holders		(317		)	(306		)	(950		)	(1,216		)
	Non-controlling interest		(163		)	(163		)	(326		)	(648		)
	Total dividends paid to common shareholders, LTIP unit holders, and non-controlling interest		(20,070		)	(20,040		)	(60,210		)	(72,016		)
	Undistributed (Distributed in excess of) earnings:
	Common shareholders		(6,834		)	(8,025		)	(3,281		)	(7,573		)
	LTIP unit holders		(125		)	(125		)	(73		)	(133		)
	Non-controlling interest		(65		)	(67		)	130			(36		)
	Total undistributed (distributed in excess of) earnings attributable to common shareholders, LTIP unit holders, and non-controlling interest		$	(7,024	)	$	(8,217	)	$	(3,224	)	$	(7,742	)
	Weighted average shares outstanding (basic and diluted):
	Weighted average common shares outstanding		27,442,146			25,415,809			26,113,839			22,968,604
	Weighted average participating LTIP units		411,926			397,897			411,346			397,366
	Weighted average non-controlling interest units		212,000			212,000			212,000			212,000
	Basic earnings per common share:
	Distributed		$	0.77		$	0.77		$	2.31		$	3.06
	Undistributed (Distributed in excess of)		(0.31		)	(0.32		)	(0.18		)	(0.33		)
			$	0.46		$	0.45		$	2.13		$	2.73
	Diluted earnings per common share:
	Distributed		$	0.77		$	0.77		$	2.31		$	3.06
	Undistributed (Distributed in excess of)		(0.31		)	(0.32		)	(0.18		)	(0.33		)
			$	0.46		$	0.45		$	2.13		$	2.73
	-1	For the three and nine month periods ended September 30, 2014, excludes net increase in equity resulting from operations of $0.1 million and $0.2 million, respectively attributable to the joint venture partner, which has a non-participating interest as described in Note 9.
	-2	The Company pays quarterly dividends in arrears, so a portion of the dividends paid in each calendar year relate to the prior year's earnings.

Counterparty_Risk_Tables

Counterparty Risk (Tables)	9 Months Ended
	Sep. 30, 2014
Risks and Uncertainties [Abstract]	'
% Of Total Collateral On Reverse Repurchase Agreements	'
	The following table details the percentage of such collateral held by counterparties who hold greater than 15% of the aggregate $1.56 billion in collateral for various reverse repurchase agreements as of September 30, 2014. In addition to the below, unencumbered investments, on a settlement date basis, of approximately $332.2 million were held in custody at the Bank of New York Mellon Corporation.
	Dealer	% of Total
		Collateral on
		Reverse Repurchase
		Agreements
	Royal Bank of Canada	19%
% Of Total Deposits With Dealers Held As Collateral	'
	The following table details the percentage of collateral amounts held by dealers who hold greater than 15% of the Company's Due from Brokers, included as of September 30, 2014:
	Dealer	% of Total Due
		from Brokers
	Morgan Stanley	50%
	J.P. Morgan Securities Inc.	24%
% Of Total Receivable For Securities Sold	'
	The following table details the percentage of amounts held by dealers who hold greater than 15% of the Company's Receivable for securities sold as of September 30, 2014:
	Dealer	% of Total Receivable
		for Securities Sold
	CS First Boston	26%
	Citigroup	21%
Schedule of Cash and Cash Equivalents [Table Text Block]	'
	In addition the Company held cash and cash equivalents of $129.1 million and $183.5 million as of September 30, 2014 and December 31, 2013, respectively. The below table details the concentration of cash and cash equivalents held by each counterparty:
		As of
	Counterparty	September 30, 2014	31-Dec-13
	Bank of New York Mellon Corporation	100%	73%
	JP Morgan Prime Money Market Premier Fund	—%	27%

Offsetting_of_Assets_and_Liabi1

Offsetting of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2014
Offsetting of Assets and Liabilities [Abstract]	'
Offsetting of Assets and Liabilities [Table Text Block]	'
	The following tables present information about certain assets and liabilities representing financial instruments as of September 30, 2014 and December 31, 2013. The Company has not entered into master netting agreements with any of its counterparties. Certain of the Company's repurchase and reverse repurchase agreements and financial derivative transactions are governed by underlying agreements that generally provide a right of offset in the event of default or in the event of a bankruptcy of either party to the transaction.
	September 30, 2014:
	Description		Amount of Assets (Liabilities) Presented in the Consolidated Statements of Assets, Liabilities, and Equity(1)			Financial Instruments Available for Offset			Financial Instruments Transferred or Pledged as Collateral(2)(3)		Cash Collateral (Received) Pledged(2)(3)			Net Amount
	(In thousands)
	Assets
	Financial derivatives–assets		$	56,366		$	(22,108	)	$	—	$	(11,773	)	$	22,484
	Repurchase agreements		47,039			(47,039		)	—		—			—
	Liabilities
	Financial derivatives–liabilities		(47,331		)	22,108			—		25,223			—
	Reverse repurchase agreements		(1,395,132		)	47,039			1,333,817		14,276			—
	December 31, 2013:
	Description		Amount of Assets (Liabilities) Presented in the Consolidated Statements of Assets, Liabilities, and Equity(1)			Financial Instruments Available for Offset			Financial Instruments Transferred or Pledged as Collateral(2)(3)		Cash Collateral (Received) Pledged(2)(3)			Net Amount
	(In thousands)
	Assets
	Financial derivatives–assets		$	59,664		$	(24,162	)	$	—	$	(17,273	)	$	18,229
	Repurchase agreements		27,962			(27,962		)	—		—			—
	Liabilities
	Financial derivatives–liabilities		(44,791		)	24,162			—		20,629			—
	Reverse repurchase agreements		(1,236,166		)	27,962			1,205,278		2,926			—
	-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	For the purpose of this presentation, for each row the total amount of financial instruments transferred or 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 transferred or pledged as collateral related to our reverse repurchase agreements and cash collateral pledged on our financial derivative liabilities. Total financial instruments transferred or pledged as collateral on our reverse repurchase agreements as of September 30, 2014 and December 31, 2013 were $1.58 billion and $1.48 billion, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $24.4 million and $3.2 million, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $27.7 million and $36.4 million, respectively.
	-3	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.

Financial_Highlights_Tables

Financial Highlights (Tables)	9 Months Ended
	Sep. 30, 2014
Financial Highlights [Abstract]	'
Results of Operations For a Share Outstanding	'
	Results of Operations for a Share Outstanding Throughout the Periods:
		Three Month Period Ended			Three Month Period Ended			Nine Month Period Ended			Nine Month Period Ended
		30-Sep-14			30-Sep-13			30-Sep-14			30-Sep-13
	Beginning Shareholders' Equity Per Share (6/30/2014, 6/30/2013, 12/31/2013, and 12/31/2012, respectively)	$	24.53		$	24.92		$	24.4		$	24.86
	Net Investment Income	0.46			0.57			1.52			1.62
	Net Realized/Unrealized Gains (Losses)	0.02			(0.10		)	0.67			1.18
	Results of Operations Attributable to Equity	0.48			0.47			2.19			2.8
	Less: Results of Operations Attributable to Non-controlling Interests	(0.01		)	—			(0.03		)	(0.03		)
	Results of Operations Attributable to Shareholders' Equity(1)	0.47			0.47			2.16			2.77
	Dividends Paid to Common Shareholders	(0.77		)	(0.77		)	(2.31		)	(3.06		)
	Weighted Average Share Impact on Dividends Paid (2)	0.03			(0.02		)	—			(0.08		)
	Accretive (Dilutive) Effect of Share Issuances (Net of Offering Costs), Share Repurchases, and Adjustments to Non-controlling Interest	(0.18		)	(0.01		)	(0.17		)	0.1
	Ending Shareholders' Equity Per Share (9/30/2014, 9/30/2013, 9/30/2014, and 9/30/2013, respectively)(3)	$	24.08		$	24.59		$	24.08		$	24.59
	Shares Outstanding, end of period	33,443,572			25,418,937			33,443,572			25,418,937
	-1	Calculated based on average common shares outstanding and can differ from the calculation for EPS (See Note 11).
	-2	Per share impact on dividends paid relating to share issuances/repurchases during the period as well as dividends paid to LTIP and OP Unit holders.
	-3	If all LTIP units and OP Units previously issued were vested and exchanged for common shares as of September 30, 2014 and 2013, shareholders' equity per share would be $23.79 and $24.19, respectively.
Net Asset Value Based Total Return For a Shareholder	'
	The following table illustrates the Company's total return for the periods presented based on net asset value:
	Net Asset Value Based Total Return for a Shareholder: (1)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Total Return	1.32%		1.82%	8.44%		11.57%
	-1	Total return is calculated assuming reinvestment of distributions at shareholders' equity per share during the period.
Net Asset Value Based Total Return For a Shareholder Assuming Conversion of All LTIP and OP Units	'
	Supplemental Information—Net Asset Value Based Total Return for a Shareholder assuming conversion of all LTIP and OP Units: (1)
		Three Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-14
	Total Return	0.08%		7.11%
	-1	Total return is calculated assuming all LTIP and OP Units had been converted into common shares at September 30, 2014. LTIP and OP Units outstanding at September 30, 2014 totaled 627,071 and represent 1.84% of total common shares and LTIP and OP Units outstanding as of that date.
Net Investment Income Ratio to Average Equity	'
	Net Investment Income Ratio to Average Equity: (1)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Net Investment Income (2)(3)	8.02%		9.99%	8.27%		8.89%
	-1	Average equity is calculated using month end values.
	-2	Includes incentive fee in calculation which can vary substantially over periods.
	-3	Includes all items of income and expense on an annualized basis except for incentive fee expense which is included on a non-annualized basis.
Expense Ratios to Average Equity	'
	Expense Ratios to Average Equity: (1)(2)
		Three Month Period Ended		Three Month Period Ended	Nine Month Period Ended		Nine Month Period Ended
		30-Sep-14		30-Sep-13	30-Sep-14		30-Sep-13
	Operating expenses before incentive fee, interest expense, and other investment related expenses	-3.03%		-2.67%	-2.86%		-2.77%
	Incentive fee	-0.21%		-0.32%	-0.22%		-0.91%
	Interest expense and other investment related expenses	-1.98%		-2.11%	-2.08%		-1.94%
	Total Expenses	-5.22%		-5.10%	-5.16%		-5.62%
	-1	Average equity is calculated using month end values.
	-2	Ratios are annualized except for the incentive fee which is not annualized.

Organization_and_Investment_Ob1

Organization and Investment Objective Narrative (Details) (Parent [Member])	Sep. 30, 2014
Parent [Member]	'
Organization, Consolidation and Presentation of Financial Statements [Line Items]	'
Ownership Percentage	99.40%

Significant_Accounting_Policie2

Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2014
Significant Accounting Policies [Line Items]	'
Number of days to determine non-performance of loan	'90 days
Long-Term Incentive Plan Units [Member] | Director [Member]	'
Significant Accounting Policies [Line Items]	'
Vesting period	'1 year
Long-Term Incentive Plan Units [Member] | Manager [Member]	'
Significant Accounting Policies [Line Items]	'
LTIP vesting period	'3 years
Minimum [Member] | Long-Term Incentive Plan Units [Member] | Dedicated or partially dedicated personnel [Member]	'
Significant Accounting Policies [Line Items]	'
Vesting period	'1 year
Maximum [Member] | Long-Term Incentive Plan Units [Member] | Dedicated or partially dedicated personnel [Member]	'
Significant Accounting Policies [Line Items]	'
Vesting period	'2 years

Valuation_Schedule_Of_Financia

Valuation (Schedule Of Financial Instruments) (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	$56,366,000	[1]	$59,664,000	[1]
Fair value repurchase agreements	47,039,000	[1]	27,962,000	[1]
Investments sold short, at fair value-	-1,221,894,000		-845,614,000
Financial derivatives–liabilities, at fair value-	-47,331,000	[1]	-44,791,000	[1]
Securitized Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Security Owned and Pledged as Collateral, Fair Value	2,300,000		2,300,000
Level 1 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Cash and cash equivalents	129,124,000		183,489,000
Total investments and financial derivatives–assets, at fair value and repurchase agreements	549,000		0
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value	-19,417,000		-8,742,000
Level 1 [Member] | Investments Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-19,356,000		-6,369,000
Level 1 [Member] | Investments Sold Short [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 1 [Member] | Investments Sold Short [Member] | Government debt sold short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 1 [Member] | Investments Sold Short [Member] | Common Stock Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-19,356,000		-6,369,000
Level 1 [Member] | Financial Derivatives - Liabilities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-61,000		-2,373,000
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		'
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		'
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-61,000		-2,373,000
Level 1 [Member] | Financial Derivatives - Liabilities [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 1 [Member] | Securitized Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Securitized debt(1)	0	[2]	0	[3]
Level 1 [Member] | Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 1 [Member] | Investments [Member] | Agency residential mortgage-backed securities and U.S. Treasury securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 1 [Member] | Investments [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		0
Level 1 [Member] | Investments [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 1 [Member] | Investments [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 1 [Member] | Investments [Member] | Commercial Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 1 [Member] | Investments [Member] | Residential Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 1 [Member] | Investments [Member] | Other Asset-backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		0
Level 1 [Member] | Investments [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 1 [Member] | Investments [Member] | Real Estate Owned [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 1 [Member] | Investments [Member] | Private Corporate Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 1 [Member] | Financial Derivatives - Assets [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	549,000		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 1 [Member] | Financial Derivatives - Assets [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 1 [Member] | Financial Derivatives - Assets [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	549,000		'
Level 1 [Member] | Financial Derivatives - Assets [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 1 [Member] | Repurchase Agreements [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fair value repurchase agreements	0		0
Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Cash and cash equivalents	0		0
Total investments and financial derivatives–assets, at fair value and repurchase agreements	1,772,636,000		1,060,822,000
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value	-1,249,430,000		-881,313,000
Level 2 [Member] | Investments Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-1,202,538,000		-839,245,000
Level 2 [Member] | Investments Sold Short [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-1,158,892,000		-811,957,000
Level 2 [Member] | Investments Sold Short [Member] | Government debt sold short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-43,646,000		-27,288,000
Level 2 [Member] | Investments Sold Short [Member] | Common Stock Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 2 [Member] | Financial Derivatives - Liabilities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-46,892,000		-42,068,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-4,385,000		-11,866,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-23,629,000		-24,949,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-2,695,000		'
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-15,766,000		-5,064,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-40,000		-67,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-213,000		'
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-164,000		-84,000
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 2 [Member] | Financial Derivatives - Liabilities [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		-38,000
Level 2 [Member] | Securitized Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Securitized debt(1)	0	[2]	0	[3]
Level 2 [Member] | Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	1,682,568,000		989,842,000
Level 2 [Member] | Investments [Member] | Agency residential mortgage-backed securities and U.S. Treasury securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	1,682,568,000		'
Level 2 [Member] | Investments [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		989,842,000
Level 2 [Member] | Investments [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 2 [Member] | Investments [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 2 [Member] | Investments [Member] | Commercial Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 2 [Member] | Investments [Member] | Residential Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		0
Level 2 [Member] | Investments [Member] | Other Asset-backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		0
Level 2 [Member] | Investments [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 2 [Member] | Investments [Member] | Real Estate Owned [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 2 [Member] | Investments [Member] | Private Corporate Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	0		'
Level 2 [Member] | Financial Derivatives - Assets [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	43,029,000		43,018,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	2,304,000		4,937,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 2 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	20,044,000		14,273,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	19,964,000		23,553,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	29,000		4,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	261,000		'
Level 2 [Member] | Financial Derivatives - Assets [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	31,000		251,000
Level 2 [Member] | Financial Derivatives - Assets [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 2 [Member] | Financial Derivatives - Assets [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	396,000		'
Level 2 [Member] | Repurchase Agreements [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fair value repurchase agreements	47,039,000		27,962,000
Level 3 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Cash and cash equivalents	0		0
Total investments and financial derivatives–assets, at fair value and repurchase agreements	771,048,000		756,934,000
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value	-1,248,000		-1,333,000
Level 3 [Member] | Investments Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 3 [Member] | Investments Sold Short [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 3 [Member] | Investments Sold Short [Member] | Government debt sold short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 3 [Member] | Investments Sold Short [Member] | Common Stock Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-378,000		-350,000
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-378,000		-350,000
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		'
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		'
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Liabilities [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		0
Level 3 [Member] | Securitized Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Securitized debt(1)	-870,000	[2]	-983,000	[3]
Level 3 [Member] | Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	758,260,000		740,288,000
Level 3 [Member] | Investments [Member] | Agency residential mortgage-backed securities and U.S. Treasury securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	38,572,000		'
Level 3 [Member] | Investments [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		40,504,000
Level 3 [Member] | Investments [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	502,070,000		580,772,000
Level 3 [Member] | Investments [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	46,317,000		32,994,000
Level 3 [Member] | Investments [Member] | Commercial Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	29,852,000		23,887,000
Level 3 [Member] | Investments [Member] | Residential Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	17,147,000		24,062,000
Level 3 [Member] | Investments [Member] | Other Asset-backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		38,069,000
Level 3 [Member] | Investments [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	109,152,000		'
Level 3 [Member] | Investments [Member] | Real Estate Owned [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	7,464,000		'
Level 3 [Member] | Investments [Member] | Private Corporate Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	7,686,000		'
Level 3 [Member] | Financial Derivatives - Assets [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	12,788,000		16,646,000
Level 3 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	12,788,000		16,646,000
Level 3 [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Assets [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Assets [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 3 [Member] | Financial Derivatives - Assets [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		0
Level 3 [Member] | Financial Derivatives - Assets [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 3 [Member] | Financial Derivatives - Assets [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	0		'
Level 3 [Member] | Repurchase Agreements [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fair value repurchase agreements	0		0
Estimate of Fair Value, Fair Value Disclosure [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Cash and cash equivalents	129,124,000		183,489,000
Total investments and financial derivatives–assets, at fair value and repurchase agreements	2,544,233,000		1,817,756,000
Total investments sold short, financial derivatives–liabilities, and securitized debt, at fair value	-1,270,095,000		-891,388,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-1,221,894,000		-845,614,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments Sold Short [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-1,158,892,000		-811,957,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments Sold Short [Member] | Government debt sold short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-43,646,000		-27,288,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments Sold Short [Member] | Common Stock Sold Short [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments sold short, at fair value-	-19,356,000		-6,369,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-47,331,000		-44,791,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-4,385,000		-11,866,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-378,000		-350,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-23,629,000		-24,949,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-2,695,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-15,766,000		-5,064,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-40,000		-67,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-213,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-164,000		-84,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-61,000		-2,373,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Liabilities [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	0		-38,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Securitized Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Securitized debt(1)	-870,000	[2]	-983,000	[3]
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	2,440,828,000		1,730,130,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Agency residential mortgage-backed securities and U.S. Treasury securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	1,721,140,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Agency residential mortgage-backed securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		1,030,346,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	502,070,000		580,772,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	46,317,000		32,994,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Commercial Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	29,852,000		23,887,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Residential Mortgage Loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	17,147,000		24,062,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Other Asset-backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	'		38,069,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	109,152,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Real Estate Owned [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	7,464,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Investments [Member] | Private Corporate Investments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Investments, at fair value-	7,686,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	56,366,000		59,664,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	2,304,000		4,937,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	12,788,000		16,646,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	20,044,000		14,273,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	19,964,000		23,553,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Total Return Swaps [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	29,000		4,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Swaption [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	261,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Put Option [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	31,000		251,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Futures [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	549,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Financial Derivatives - Assets [Member] | Forwards [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Financial derivatives–assets, at fair value-	396,000		'
Estimate of Fair Value, Fair Value Disclosure [Member] | Repurchase Agreements [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fair value repurchase agreements	47,039,000		27,962,000
Fair Value, Measurements, Recurring [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fair Value, Level 1 To Level 2 To Level 3 Transfers Amount	$0		$0
[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]	The asset subject to the resecuritization had a fair value of $2.3 million as of September 30, 2014, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.
[3]	The asset subject to the resecuritization had a fair value of $2.3 million as of December 31, 2013, which is included on the Consolidated Schedule of Investments under Principal and Interest Private – Label Securities.

Valuation_Schedule_Of_Signific

Valuation (Schedule Of Significant Unobservable Inputs, Qualitative Information) (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Securitized debt	870,000		983,000
Level 3 [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	771,048,000		756,934,000
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities and Securitized Debt [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	422,033,000	[1]	'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities and Securitized Debt [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	1.96	[1]	'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities and Securitized Debt [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	109.91	[1]	'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities and Securitized Debt [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	76.65	[1]	'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities, Other Asset-backed securities And Securitized Debt [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	'		550,701,000	[2]
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities, Other Asset-backed securities And Securitized Debt [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		1.8	[2]
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities, Other Asset-backed securities And Securitized Debt [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		110.35	[2]
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Residential Mortgage Backed Securities, Other Asset-backed securities And Securitized Debt [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		78.09	[2]
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage Backed Securities And Commercial Mortgage Loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	'		34,489,000
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage Backed Securities And Commercial Mortgage Loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		14.25
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage Backed Securities And Commercial Mortgage Loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		102.89
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage Backed Securities And Commercial Mortgage Loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	'		74.24
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	33,367,000		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	10.02		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	97.09		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	57.28		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	35,069,000		38,783,000
Level 3 [Member] | Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	3.76		6.26
Level 3 [Member] | Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	30.14		33.77
Level 3 [Member] | Market Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	13.65		14.53
Level 3 [Member] | Market Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	102,804,000		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	48		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	162		'
Level 3 [Member] | Market Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Non Binding Indicative Price	102.08		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	79,167,000		67,158,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Residential Mortgage-Backed Securities [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	3.60%		3.80%
Projected Collateral Prepayments	7.60%		6.90%
Projected Collateral Losses	3.00%		4.30%
Projected Collateral Recoveries	0.00%		0.30%
Projected Collateral Scheduled Amortization	0.00%		14.10%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Residential Mortgage-Backed Securities [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	16.10%		20.50%
Projected Collateral Prepayments	83.60%		64.50%
Projected Collateral Losses	45.20%		35.20%
Projected Collateral Recoveries	25.50%		17.10%
Projected Collateral Scheduled Amortization	79.50%		87.30%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	7.30%		8.00%
Projected Collateral Prepayments	40.10%		29.70%
Projected Collateral Losses	13.10%		17.40%
Projected Collateral Recoveries	8.30%		9.10%
Projected Collateral Scheduled Amortization	38.50%		43.80%
Total Outstanding Collateral	100.00%		100.00%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	12,950,000		3,480,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	14.50%		9.20%
Projected Collateral Losses	0.20%		0.20%
Projected Collateral Recoveries	2.80%		15.40%
Projected Collateral Scheduled Amortization	84.90%		84.40%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	28.40%		18.20%
Projected Collateral Losses	1.10%		0.20%
Projected Collateral Recoveries	14.10%		15.40%
Projected Collateral Scheduled Amortization	97.00%		84.40%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Private Label Commercial Mortgage-Backed Securities [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	22.70%		13.50%
Projected Collateral Losses	0.80%		0.20%
Projected Collateral Recoveries	8.40%		15.40%
Projected Collateral Scheduled Amortization	90.80%		84.40%
Total Outstanding Collateral	100.00%		100.00%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	19,108,000		8,788,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	10.00%		12.70%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	19.70%		12.80%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Performing Commercial Mortgage Loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	17.50%		12.70%
Level 3 [Member] | Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	10,744,000		10,123,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	10.30%		15.00%
Months to Resolution	'3 months		'5 months
Level 3 [Member] | Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	15.00%		15.00%
Months to Resolution	'28 months		'7 months
Level 3 [Member] | Income Approach Valuation Technique [Member] | Non-performing Commercial Mortgage Loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	13.90%		15.00%
Months to Resolution	'7 months 26 days		'6 months
Level 3 [Member] | Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	3,503,000		1,721,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	57.20%		49.00%
Projected Collateral Scheduled Amortization	0.00%		41.90%
LIBOR OAS	-0.44%	[3]	3.49%	[3]
Level 3 [Member] | Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	100.00%		58.10%
Projected Collateral Scheduled Amortization	42.80%		51.00%
LIBOR OAS	14.01%	[3]	6.45%	[3]
Level 3 [Member] | Income Approach Valuation Technique [Member] | Agency Interest Only Residential Mortgage-Backed Securities [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	77.00%		51.20%
Projected Collateral Scheduled Amortization	23.00%		48.80%
Total Outstanding Collateral	100.00%		100.00%
LIBOR OAS	6.71%	[3]	4.22%	[3]
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans and Real Estate Owned Properties [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	24,611,000		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans and Real Estate Owned Properties [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	6.50%		'
Months to Resolution	'4 months		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans and Real Estate Owned Properties [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	12.00%		'
Months to Resolution	'26 months		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans and Real Estate Owned Properties [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	7.40%		'
Months to Resolution	'12 months 21 days		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	'		24,062,000
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	'		7.40%
Months to Resolution	'		'16 months 9 days
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	'		7.40%
Months to Resolution	'		'16 months 9 days
Level 3 [Member] | Income Approach Valuation Technique [Member] | Residential Mortgage Loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	'		7.40%
Months to Resolution	'		'16 months 9 days
Level 3 [Member] | Income Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	6,348,000		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	5.90%		'
Projected Collateral Prepayments	0.00%		'
Projected Collateral Losses	1.10%		'
Projected Collateral Recoveries	0.00%		'
Projected Collateral Scheduled Amortization	0.00%		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	13.90%		'
Projected Collateral Prepayments	73.80%		'
Projected Collateral Losses	94.60%		'
Projected Collateral Recoveries	92.80%		'
Projected Collateral Scheduled Amortization	28.00%		'
Level 3 [Member] | Income Approach Valuation Technique [Member] | Other sset-backed securities and loans [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	9.20%		'
Projected Collateral Prepayments	9.50%		'
Projected Collateral Losses	75.60%		'
Projected Collateral Recoveries	7.30%		'
Projected Collateral Scheduled Amortization	7.60%		'
Total Outstanding Collateral	100.00%		'
Credit Default Swaps On Asset Backed Securities [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	12,410,000		16,296,000
Credit Default Swaps On Asset Backed Securities [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	18.70%		19.30%
Projected Collateral Losses	15.80%		15.50%
Projected Collateral Recoveries	7.60%		8.20%
Projected Collateral Scheduled Amortization	15.90%		15.70%
Credit Default Swaps On Asset Backed Securities [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	56.90%		59.00%
Projected Collateral Losses	46.40%		47.80%
Projected Collateral Recoveries	16.90%		15.20%
Projected Collateral Scheduled Amortization	42.10%		41.20%
Credit Default Swaps On Asset Backed Securities [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Projected Collateral Prepayments	32.20%		29.90%
Projected Collateral Losses	31.00%		34.80%
Projected Collateral Recoveries	12.50%		13.10%
Projected Collateral Scheduled Amortization	24.30%		22.20%
Total Outstanding Collateral	100.00%		100.00%
Private Corporate Investments [Member] | Preferred Stock [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	5,000,000		'
Private Corporate Investments [Member] | Preferred Stock [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	10.70%		'
Expected Holding Period (Months)	'47 months 27 days		'
Private Corporate Investments [Member] | Preferred Stock [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	10.70%		'
Expected Holding Period (Months)	'47 months 27 days		'
Private Corporate Investments [Member] | Preferred Stock [Member] | Level 3 [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Yield	10.70%		'
Expected Holding Period (Months)	'47 months 27 days		'
Private Corporate Investments [Member] | Equity in Mortgage Originator [Member] | Level 3 [Member] | Recent Transactions [Member]	'		'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'		'
Fair value	2,686,000		'
[1]	Includes securitized debt with a fair value of $0.9 million as of September 30, 2014.
[2]	Includes securitized debt with a fair value of $1.0 million as of December 31, 2013.
[3]	Shown in basis points.

Valuation_Fair_Value_Measureme

Valuation (Fair Value Measurement Using Significant Unobservable Inputs) (Details) (Level 3 [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	$708,093,000	$814,350,000	$756,934,000	$599,914,000
Assets, Accreted Discounts/Amortized Premiums	1,646,000	4,979,000	8,683,000	16,096,000
Assets, Realized Gain (Loss)	3,577,000	8,759,000	41,633,000	31,147,000
Assets, Change In Net Unrealized Gain/(Loss)	-3,072,000	-1,385,000	-12,772,000	13,444,000
Assets, Purchases	178,574,000	153,882,000	483,619,000	521,104,000
Assets, Sales	-117,770,000	-180,493,000	-507,049,000	-381,613,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	771,048,000	800,092,000	771,048,000	800,092,000
Liabilities, Begining Balance	-1,275,000	-1,709,000	-1,333,000	-1,336,000
Liabilities, Accreted Discounts/Amortized Premiums	-1,000	-10,000	-14,000	-31,000
Liabilities, Realized Gain/(Loss)	-20,000	-2,000	-59,000	-59,000
Liabilities, Change In Net Unrealized Gain/(Loss)	-30,000	252,000	-45,000	-282,000
Liabilities Purchases/Payments	58,000	110,000	144,000	292,000
Liabilities, Sales/Issuance	20,000	2,000	59,000	59,000
Liabilities, Transfers In and/or Out of Level 3	0	0	0	0
Liabilities, Ending Balance	-1,248,000	-1,357,000	-1,248,000	-1,357,000
Change in net unrealized gain (loss) on investments	-2,900,000	4,300,000	2,300,000	19,600,000
Change in net unrealized gain (loss) in financial derivative assets	-700,000	1,000,000	-1,900,000	-8,800,000
Change in net unrealized Gain (Loss) on financial derivative liabilities	-28,600	2,200,000	-28,400	-300,000
Change in net unrealized gain (loss) in securitized debt	-2,000	30,000	-17,000	36,000
Securitized Debt [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Liabilities, Begining Balance	-925,000	-1,168,000	-983,000	-1,335,000
Liabilities, Accreted Discounts/Amortized Premiums	-1,000	-10,000	-14,000	-31,000
Liabilities, Realized Gain/(Loss)	0	0	0	0
Liabilities, Change In Net Unrealized Gain/(Loss)	-2,000	30,000	-17,000	36,000
Liabilities, Payments	58,000	110,000	144,000	292,000
Liabilities, Issuances	0	0	0	0
Liabilities, Transfers In and/or Out of Level 3	0	0	0	0
Liabilities, Ending Balance	-870,000	-1,038,000	-870,000	-1,038,000
Investments [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	693,931,000	793,216,000	740,288,000	563,883,000
Assets, Accreted Discounts/Amortized Premiums	1,646,000	4,979,000	8,683,000	16,096,000
Assets, Realized Gain (Loss)	6,437,000	11,872,000	43,768,000	31,551,000
Assets, Change In Net Unrealized Gain/(Loss)	-6,076,000	-4,380,000	-15,151,000	14,941,000
Assets, Purchases	178,499,000	153,824,000	483,089,000	520,955,000
Assets, Sales	-116,177,000	-177,034,000	-502,417,000	-364,949,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	758,260,000	782,477,000	758,260,000	782,477,000
Investments [Member] | Agency residential mortgage-backed securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	36,240,000	27,397,000	40,504,000	6,644,000
Assets, Accreted Discounts/Amortized Premiums	-2,188,000	-1,844,000	-6,523,000	-3,846,000
Assets, Realized Gain (Loss)	286,000	0	457,000	0
Assets, Change In Net Unrealized Gain/(Loss)	492,000	875,000	515,000	1,180,000
Assets, Purchases	4,695,000	10,605,000	7,249,000	33,055,000
Assets, Sales	-953,000	0	-3,630,000	0
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	38,572,000	37,033,000	38,572,000	37,033,000
Investments [Member] | Private Label Residential Mortgage-Backed Securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	485,902,000	694,510,000	580,772,000	528,366,000
Assets, Accreted Discounts/Amortized Premiums	4,770,000	7,289,000	15,359,000	20,401,000
Assets, Realized Gain (Loss)	3,684,000	11,187,000	34,862,000	30,977,000
Assets, Change In Net Unrealized Gain/(Loss)	-5,030,000	-5,865,000	-14,366,000	11,518,000
Assets, Purchases	79,431,000	106,194,000	233,654,000	363,056,000
Assets, Sales	-66,687,000	-161,333,000	-348,211,000	-302,336,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	502,070,000	651,982,000	502,070,000	651,982,000
Investments [Member] | Private Label Commercial Mortgage-Backed Securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	28,047,000	23,906,000	32,994,000	19,327,000
Assets, Accreted Discounts/Amortized Premiums	145,000	161,000	497,000	258,000
Assets, Realized Gain (Loss)	1,089,000	647,000	5,479,000	-477,000
Assets, Change In Net Unrealized Gain/(Loss)	-378,000	139,000	-842,000	2,612,000
Assets, Purchases	29,496,000	21,760,000	95,665,000	58,928,000
Assets, Sales	-12,082,000	-13,342,000	-87,476,000	-47,377,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	46,317,000	33,271,000	46,317,000	33,271,000
Investments [Member] | Commercial Mortgage Loans [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	37,415,000	7,563,000	23,887,000	9,546,000
Assets, Accreted Discounts/Amortized Premiums	832,000	31,000	1,916,000	58,000
Assets, Realized Gain (Loss)	1,029,000	0	1,901,000	482,000
Assets, Change In Net Unrealized Gain/(Loss)	-382,000	411,000	-673,000	497,000
Assets, Purchases	8,113,000	6,931,000	32,117,000	9,481,000
Assets, Sales	-17,155,000	0	-29,296,000	-5,128,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	29,852,000	14,936,000	29,852,000	14,936,000
Investments [Member] | Residential Mortgage Loans [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	23,371,000	'	24,062,000	'
Assets, Accreted Discounts/Amortized Premiums	878,000	'	878,000	'
Assets, Realized Gain (Loss)	501,000	'	878,000	'
Assets, Change In Net Unrealized Gain/(Loss)	-131,000	'	823,000	'
Assets, Purchases	-547,000	'	1,148,000	'
Assets, Sales	-6,925,000	'	-10,642,000	'
Assets, Transfers In and/or Out of Level 3	0	'	0	'
Assets, Ending Balance	17,147,000	'	17,147,000	'
Investments [Member] | Other sset-backed securities and loans [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	81,315,000	'	38,069,000	'
Assets, Accreted Discounts/Amortized Premiums	-2,791,000	'	-3,444,000	'
Assets, Realized Gain (Loss)	-170,000	'	184,000	'
Assets, Change In Net Unrealized Gain/(Loss)	-637,000	'	-581,000	'
Assets, Purchases	43,353,000	'	97,539,000	'
Assets, Sales	-11,918,000	'	-22,615,000	'
Assets, Transfers In and/or Out of Level 3	0	'	0	'
Assets, Ending Balance	109,152,000	'	109,152,000	'
Investments [Member] | Real Estate Owned [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	1,641,000	'	0	'
Assets, Accreted Discounts/Amortized Premiums	0	'	0	'
Assets, Realized Gain (Loss)	18,000	'	7,000	'
Assets, Change In Net Unrealized Gain/(Loss)	229,000	'	212,000	'
Assets, Purchases	6,033,000	'	7,792,000	'
Assets, Sales	-457,000	'	-547,000	'
Assets, Transfers In and/or Out of Level 3	0	'	0	'
Assets, Ending Balance	7,464,000	'	7,464,000	'
Investments [Member] | Other Asset-backed Securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	'	39,840,000	'	0
Assets, Accreted Discounts/Amortized Premiums	'	-658,000	'	-775,000
Assets, Realized Gain (Loss)	'	38,000	'	569,000
Assets, Change In Net Unrealized Gain/(Loss)	'	60,000	'	-866,000
Assets, Purchases	'	8,334,000	'	56,435,000
Assets, Sales	'	-2,359,000	'	-10,108,000
Assets, Transfers In and/or Out of Level 3	'	0	'	0
Assets, Ending Balance	'	45,255,000	'	45,255,000
Investments [Member] | Private Corporate Investments [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	0	'	0	'
Assets, Accreted Discounts/Amortized Premiums	0	'	0	'
Assets, Realized Gain (Loss)	0	'	0	'
Assets, Change In Net Unrealized Gain/(Loss)	-239,000	'	-239,000	'
Assets, Purchases	7,925,000	'	7,925,000	'
Assets, Sales	0	'	0	'
Assets, Transfers In and/or Out of Level 3	0	'	0	'
Assets, Ending Balance	7,686,000	'	7,686,000	'
Financial Derivatives - Assets [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	14,162,000	21,134,000	16,646,000	36,031,000
Assets, Accreted Discounts/Amortized Premiums	0	0	0	0
Assets, Realized Gain (Loss)	-2,860,000	-3,113,000	-2,135,000	-404,000
Assets, Change In Net Unrealized Gain/(Loss)	3,004,000	2,995,000	2,379,000	-1,497,000
Assets, Purchases	75,000	58,000	530,000	149,000
Assets, Sales	-1,593,000	-3,459,000	-4,632,000	-16,664,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	12,788,000	17,615,000	12,788,000	17,615,000
Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Assets, Beginning Balance	14,162,000	21,134,000	16,646,000	36,031,000
Assets, Accreted Discounts/Amortized Premiums	0	0	0	0
Assets, Realized Gain (Loss)	-2,860,000	-3,113,000	-2,135,000	-404,000
Assets, Change In Net Unrealized Gain/(Loss)	3,004,000	2,995,000	2,379,000	-1,497,000
Assets, Purchases	75,000	58,000	530,000	149,000
Assets, Sales	-1,593,000	-3,459,000	-4,632,000	-16,664,000
Assets, Transfers In and/or Out of Level 3	0	0	0	0
Assets, Ending Balance	12,788,000	17,615,000	12,788,000	17,615,000
Financial Derivatives - Liabilities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Liabilities, Begining Balance	-350,000	-541,000	-350,000	-1,000
Liabilities, Accreted Discounts/Amortized Premiums	0	0	0	0
Liabilities, Realized Gain/(Loss)	-20,000	-2,000	-59,000	-59,000
Liabilities, Change In Net Unrealized Gain/(Loss)	-28,000	222,000	-28,000	-318,000
Liabilities, Purchases	0	0	0	0
Liabilities, Sales	20,000	2,000	59,000	59,000
Liabilities, Transfers In and/or Out of Level 3	0	0	0	0
Liabilities, Ending Balance	-378,000	-319,000	-378,000	-319,000
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Liabilities, Begining Balance	-350,000	-541,000	-350,000	-1,000
Liabilities, Accreted Discounts/Amortized Premiums	0	0	0	0
Liabilities, Realized Gain/(Loss)	-20,000	-2,000	-59,000	-59,000
Liabilities, Change In Net Unrealized Gain/(Loss)	-28,000	222,000	-28,000	-318,000
Liabilities, Purchases	0	0	0	0
Liabilities, Sales	20,000	2,000	59,000	59,000
Liabilities, Transfers In and/or Out of Level 3	0	0	0	0
Liabilities, Ending Balance	($378,000)	($319,000)	($378,000)	($319,000)

To_Be_Announced_RMBS_Details

To Be Announced RMBS (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
To Be Announced Securities [Line Items]	'		'
Fair Value	$2,440,828,000		$1,730,130,000
Receivable for securities sold	1,246,205,000		883,005,000
Financial Instruments Sold, Not yet Purchased, at Fair Value	-1,221,894,000		-845,614,000
Payable for securities purchased	576,455,000		193,047,000
To Be Announced Fixed Rate Agency Securities [Member]	'		'
To Be Announced Securities [Line Items]	'		'
Fair Value	111,624,000	[1],[2],[3],[4]	96,856,000	[1],[5],[6],[7]
Investment Owned, Balance, Principal Amount	112,448,000		101,150,000
Receivable for securities sold	1,158,168,000		813,933,000
TBA - Fixed Rate Agency Securities Sold Short [Member]	'		'
To Be Announced Securities [Line Items]	'		'
Financial Instruments Sold, Not yet Purchased, at Fair Value	-1,158,892,000	[1],[4],[8]	-811,957,000	[1],[5],[9]
Investment Sold, Not yet Purchased, Balance, Principal Amount	-1,101,218,000		-784,888,000
Payable for securities purchased	-112,286,000		-96,762,000
Investment Owned At Fair Value, Net	($1,047,268,000)		($715,101,000)
[1]	See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[2]	The table below shows the Company's long investment ratings from Moody's, Standard and Poor's, or Fitch, as well as the Company's long investments that were unrated but guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, or the Government National Mortgage Association. Ratings tend to be a lagging credit indicator; as a result, the credit quality of the Company's long investment holdings may be lower than the credit quality implied based on the ratings listed below. In situations where an investment has a split rating, the lowest provided rating is used. The ratings descriptions include ratings qualified with a "+," "-," "1," "2," or "3."Rating Description Percent of EquityUnrated but Agency-Guaranteed 144.78%A/A/A 0.64%Baa/BBB/BBB 4.59%Ba/BB/BB or below 66.71%Unrated 83.84%
[3]	At September 30, 2014, the Company's long investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 92.40%, 44.08%, and 8.30% of equity, respectively.
[4]	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)%
[5]	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 %
[6]	At December 31, 2013, the Company's long investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 100.85%, 51.37%, and 12.36% of equity, respectively.
[7]	The table below shows the ratings on the Company's long investments from Moody's, Standard and Poor's, or Fitch, as well as the Company's long investments that were unrated but guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, or the Government National Mortgage Association. Ratings tend to be a lagging credit indicator; as a result, the credit quality of the Company's long investment holdings may be lower than the credit quality implied based on the ratings listed below. In situations where an investment has a split rating, the lowest provided rating is used. The ratings descriptions include ratings qualified with a "+," "-," "1," "2," or "3."Rating Description Percent ofEquityUnrated but Agency-Guaranteed 164.58%A/A/A 0.34%Baa/BBB/BBB 2.97%Ba/BB/BB or below 97.95%Unrated 10.52%
[8]	At September 30, 2014, the Company's short investments guaranteed by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association, represented 116.36%, 24.40%, and 1.94% of equity, respectively.
[9]	At December 31, 2013, the Company's short investments guaranteed by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation represented 111.89% and 17.80% of equity, respectively.

Financial_Derivatives_Schedule

Financial Derivatives (Schedule Of Gains And Losses On Derivative Contracts) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative [Line Items]	'	'	'	'
Net Realized Gain/Loss on Financial Derivatives	($9,477)	($6,442)	($9,075)	($12,774)
Unrealized Gain (Loss) on Financial Derivatives	12,056	-2,005	3,845	14,578
Financial Derivatives - Assets [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Net Realized Gain/Loss on Financial Derivatives	-975	-2,661	9,043	-3,857
Unrealized Gain (Loss) on Financial Derivatives	4,165	2,650	1,919	17,723
Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	-2,860	-3,113	-2,135	-404
Unrealized Gain (Loss) on Financial Derivatives	3,004	2,995	2,379	-1,497
Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	-2,145	-181	-4,261	-4,302
Unrealized Gain (Loss) on Financial Derivatives	2,327	-1,011	2,367	2,503
Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	-1,459	-84	653	-3
Unrealized Gain (Loss) on Financial Derivatives	414	44	-361	0
Financial Derivatives - Assets [Member] | Total Return Swaps [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Equity Market	'Equity Market	'Equity Market	'Equity Market
Net Realized Gain/Loss on Financial Derivatives	1,079	907	8,846	911
Unrealized Gain (Loss) on Financial Derivatives	4	-112	24	15
Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Interest Rates	'Interest Rates	'Interest Rates	'Interest Rates
Net Realized Gain/Loss on Financial Derivatives	1,953	-512	1,904	-229
Unrealized Gain (Loss) on Financial Derivatives	191	-195	-3,940	15,768
Financial Derivatives - Assets [Member] | Futures [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Interest Rates	'Interest Rates	'Interest Rates	'Interest Rates
Net Realized Gain/Loss on Financial Derivatives	299	255	1,266	103
Unrealized Gain (Loss) on Financial Derivatives	-2,023	970	550	975
Financial Derivatives - Assets [Member] | Forwards [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Currency	'	'Currency	'
Net Realized Gain/Loss on Financial Derivatives	2,218	'	2,722	'
Unrealized Gain (Loss) on Financial Derivatives	345	'	396	'
Financial Derivatives - Assets [Member] | Other Derivatives [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit/ Interest Rates	'Interest Rates	'Credit/ Interest Rates	'Interest Rates
Net Realized Gain/Loss on Financial Derivatives	-60	67	48	67
Unrealized Gain (Loss) on Financial Derivatives	-97	-41	504	-41
Financial Derivatives - Liabilities [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Net Realized Gain/Loss on Financial Derivatives	-8,502	-3,781	-18,118	-8,917
Unrealized Gain (Loss) on Financial Derivatives	7,891	-4,655	1,926	-3,145
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	-20	-2	-59	-59
Unrealized Gain (Loss) on Financial Derivatives	-28	222	-28	-318
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	166	339	2,608	539
Unrealized Gain (Loss) on Financial Derivatives	-55	959	-1,180	1,772
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'Credit	'Credit	'Credit
Net Realized Gain/Loss on Financial Derivatives	-1,878	-2,985	-7,639	-7,517
Unrealized Gain (Loss) on Financial Derivatives	5,034	-1,959	8,948	-1,759
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit	'	'Credit	'
Net Realized Gain/Loss on Financial Derivatives	369	'	510	'
Unrealized Gain (Loss) on Financial Derivatives	-395	'	-620	'
Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Equity Market	'Equity Market	'Equity Market	'Equity Market
Net Realized Gain/Loss on Financial Derivatives	-4,067	-53	-5,041	-448
Unrealized Gain (Loss) on Financial Derivatives	3	96	27	43
Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Interest Rates	'Interest Rates	'Interest Rates	'Interest Rates
Net Realized Gain/Loss on Financial Derivatives	-2,218	-10	-6,075	282
Unrealized Gain (Loss) on Financial Derivatives	174	-4,099	-7,539	-2,997
Financial Derivatives - Liabilities [Member] | Futures [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Interest Rates	'Interest Rates	'Interest Rates	'Interest Rates
Net Realized Gain/Loss on Financial Derivatives	39	-1,029	14	-1,673
Unrealized Gain (Loss) on Financial Derivatives	2,650	82	2,315	70
Financial Derivatives - Liabilities [Member] | Forwards [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Currency	'	'Currency	'
Net Realized Gain/Loss on Financial Derivatives	-997	'	-1,926	'
Unrealized Gain (Loss) on Financial Derivatives	314	'	38	'
Financial Derivatives - Liabilities [Member] | Other Derivatives [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Primary risk exposure	'Credit/ Interest Rates/Equity Market	'Interest Rates/Equity Market	'Credit/ Interest Rates/Equity Market	'Interest Rates/ Equity Market
Net Realized Gain/Loss on Financial Derivatives	104	-41	-510	-41
Unrealized Gain (Loss) on Financial Derivatives	$194	$44	($35)	$44

Financial_Derivatives_Schedule1

Financial Derivatives (Schedule Of Credit Derivatives) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Credit Default Swap, Selling Protection [Member]	'		'
Credit Derivatives [Line Items]	'		'
Fair Value of Written Credit Derivatives, Net	$12,041		$1,421
Notional value	-140,013	[1]	-120,497	[1]
Credit Default Swap, Buying Protection [Member]	'		'
Credit Derivatives [Line Items]	'		'
Fair Value of Written Credit Derivatives, Net	334	[2]	57	[2]
Notional value	$1,910	[2]	$249	[2]
[1]	The notional value is the maximum amount that a seller of credit protection would be obligated to pay, and a buyer of credit protection would receive upon occurrence of a "credit event." Movements in the value of credit default swap transactions may require the Company or the counterparty to post or receive collateral. Amounts due or owed under credit derivative contracts with an International Swaps and Derivatives Association, or "ISDA," counterparty may be offset against amounts due or owed on other credit derivative contracts with the same ISDA counterparty. As a result, the notional amount of written credit derivatives involving a particular underlying reference asset or index has been reduced (but not below zero) by the notional amount of any contracts where the Company has purchased credit protection on the same reference asset or index with the same ISDA counterparty.
[2]	Offsetting transactions with third parties include purchased credit derivatives which have the same reference obligation.

Financial_Derivatives_Narrativ

Financial Derivatives (Narrative) (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Credit Default Swap, Selling Protection [Member]	'	'
Derivative [Line Items]	'	'
Total net up-front payments received	$10.60	$2.50
Forwards [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	56.00%	'
Option [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	263.00%	387.00%
Futures [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	96.00%	179.00%
Credit Default Swaps [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	105.00%	174.00%
Interest Rate Swaps [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	165.00%	187.00%
Total Return Swaps [Member]	'	'
Derivative [Line Items]	'	'
Average Monthly Notional Amount	164.00%	210.00%

Schedule_of_Reverse_Repurchase

Schedule of Reverse Repurchase Agreements by Maturity (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	$1,395,132	[1]	$1,236,166	[1]
Debt, Weighted Average Interest Rate	0.61%		0.90%
Remaining Days to Maturity, Reverse Repurchase Agreements	'72 days		'56 days
Maturity up to 30 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	609,777		369,861
Debt, Weighted Average Interest Rate	0.35%		0.53%
Remaining Days to Maturity, Reverse Repurchase Agreements	'11 days		'14 days
Maturity 31 to 60 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	331,753		402,206
Debt, Weighted Average Interest Rate	0.69%		1.12%
Remaining Days to Maturity, Reverse Repurchase Agreements	'46 days		'45 days
Maturity 61 to 90 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	284,665		320,161
Debt, Weighted Average Interest Rate	0.42%		0.78%
Remaining Days to Maturity, Reverse Repurchase Agreements	'72 days		'72 days
Maturity 91 to 120 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	36,338		8,233
Debt, Weighted Average Interest Rate	0.40%		1.40%
Remaining Days to Maturity, Reverse Repurchase Agreements	'106 days		'100 days
Maturity 121 to 150 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	7,053		38,856
Debt, Weighted Average Interest Rate	0.90%		0.49%
Remaining Days to Maturity, Reverse Repurchase Agreements	'134 days		'135 days
Maturity 151 to 180 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	67,134		96,849
Debt, Weighted Average Interest Rate	1.71%		1.90%
Remaining Days to Maturity, Reverse Repurchase Agreements	'166 days		'179 days
Maturity greater than 360 days [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	$58,412		$0
Debt, Weighted Average Interest Rate	2.41%		0.00%
Remaining Days to Maturity, Reverse Repurchase Agreements	'723 days		'0 days
[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.

Borrowings_under_Repurchase_Ag

Borrowings under Repurchase Agreements (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Reverse Repurchase Agreements [Line Items]	'		'
Non Mark-to-Market Reverse Repurchase Agreement Facility	150,000,000		'
Initial Period of Non-Mark-to-Market Financing Facility	'18 months		'
Cancellation Notice Period Under Non-Mark-to-Market Financing Facility	'6 months		'
Reverse repurchase agreements	1,395,132,000	[1]	1,236,166,000	[1]
Number of Counterparties with Outstanding Reverse Repurchase Agreements	17		14
Concentration Risk, Reverse Repurchase Agreements	20.00%		39.00%
Number Counterparties With Concentration Risk, Reverse Repurchase Agreements	1		2
Investments held with dealers as collateral	1,560,000,000		1,460,000,000
Pledged Financial Instruments, Not Separately Reported, Securities For Repurchase Agreements Unsettled	27,000,000		13,300,000
Minimum [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse Repurchase Agreements Maturity	'30 days		'
Financing term under non-mark-to-market facility	'2 years		'
Reverse Repurchase Agreements Remaining Terms	'1 day		'2 days
Reverse Repurchase Agreements Interest Rate	-0.10%		0.32%
Maximum [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse Repurchase Agreements Maturity	'180 days		'
Reverse Repurchase Agreements Remaining Terms	'723 days		'180 days
Reverse Repurchase Agreements Interest Rate	2.41%		2.27%
Reverse Repurchase Agreements [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Cash Collateral (Received) Pledged	14,276,000	[2],[3]	2,926,000	[2],[3]
Security Owned and Pledged as Collateral, Fair Value	11,400,000		20,600,000
US Treasury Securities [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	224,400,000		'
Non-Mark-to-Market Financing Facility [Member]	'		'
Reverse Repurchase Agreements [Line Items]	'		'
Reverse repurchase agreements	58,400,000		'
[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]	For the purpose of this presentation, for each row the total amount of financial instruments transferred or 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 transferred or pledged as collateral related to our reverse repurchase agreements and cash collateral pledged on our financial derivative liabilities. Total financial instruments transferred or pledged as collateral on our reverse repurchase agreements as of September 30, 2014 and December 31, 2013 were $1.58 billion and $1.48 billion, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $24.4 million and $3.2 million, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $27.7 million and $36.4 million, respectively.
[3]	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.

Base_Management_Fee_And_Incent1

Base Management Fee And Incentive Fee (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Base Management Fee And Incentive Fee [Abstract]	'	'	'	'	'
Annual base management fee percentage	'	'	1.50%	'	'
Management fee description	'	'	'	'	'The Operating Partnership pays the Manager 1.50% per annum of total equity of the Operating Partnership calculated in accordance with U.S. GAAP as of the end of each fiscal quarter (before deductions for base management fees and incentive fees payable with respect to such fiscal quarter), provided that total equity is adjusted to exclude one-time events pursuant to changes in U.S. GAAP, as well as non-cash charges after discussion between the Manager and the Company's independent directors, and approval by a majority of the Company's independent directors in the case of non-cash charges.
Management Fee Expense	$3,056	$2,378	$7,789	$6,751	'
Incentive fee rate	'	'	25.00%	'	'
Incentive fees arrangement	'	'	'	'	'The Manager is entitled to receive a quarterly incentive fee equal to the positive excess, if any, of (i) the product of (A) 25% and (B) the excess of (1) Adjusted Net Income (described below) for the Incentive Calculation Period (which means such fiscal quarter and the immediately preceding three fiscal quarters) over (2) the sum of the Hurdle Amounts (described below) for the Incentive Calculation Period, over (ii) the sum of the incentive fees already paid or payable for each fiscal quarter in the Incentive Calculation Period preceding such fiscal quarter. For purposes of calculating the incentive fee, "Adjusted Net Income" for the Incentive Calculation Period means the net increase in equity from operations of the Operating Partnership, after all base management fees but before any incentive fees for such period, and excluding any non-cash equity compensation expenses for such period, as reduced by any Loss Carryforward (as described below) as of the end of the fiscal quarter preceding the Incentive Calculation Period. For purposes of calculating the incentive fee, the "Loss Carryforward" as of the end of any fiscal quarter is calculated by determining the excess, if any, of (1) the Loss Carryforward as of the end of the immediately preceding fiscal quarter over (2) the Company's net increase in equity from operations (expressed as a positive number) or net decrease in equity from operations (expressed as a negative number) of the Operating Partnership for such fiscal quarter. As of September 30, 2014 there was no Loss Carryforward. For purposes of calculating the incentive fee, the "Hurdle Amount" means, with respect to any fiscal quarter, the product of (i) one-fourth of the greater of (A) 9% and (B) 3% plus the 10-year U.S. Treasury rate for such fiscal quarter, (ii) the sum of (A) the weighted average gross proceeds per share of all common share and OP Unit issuances since inception of the Company and up to the end of such fiscal quarter, with each issuance weighted by both the number of shares and OP Units issued in such issuance and the number of days that such issued shares and OP Units were outstanding during such fiscal quarter, using a first-in first-out basis of accounting (i.e. attributing any share and OP Unit repurchases to the earliest issuances first) and (B) the result obtained by dividing (I) retained earnings attributable to common shares and OP Units at the beginning of such fiscal quarter by (II) the average number of common shares and OP Units outstanding for each day during such fiscal quarter, (iii) the sum of the average number of common shares, LTIP Units, and OP Units outstanding for each day during such fiscal quarter. For purposes of determining the Hurdle Amount, issuances of common shares and OP Units (a) as equity incentive awards, (b) to the Manager as part of its base management fee or incentive fee and (c) to the Manager or any of its affiliates in privately negotiated transactions, are excluded from the calculation. The payment of the incentive fee will be in a combination of common shares and cash, provided that at least 10% of any quarterly payment will be made in common shares.
Incentive fee hurdle rate fixed	'	'	9.00%	'	'
Incentive fee hurdle rate floating	'	'	3.00%	'	'
Incentive Fee Expense	$1,400	$2,038	$1,400	$5,275	'
Minimum percentage of incentive fee to be paid in share	'	'	10.00%	'	'

LongTerm_Incentive_Plan_Units_1

Long-Term Incentive Plan Units (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		4 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2007
					Manager [Member]
					Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
LTIP units granted	'	'	'	'	375,000
Allocated Share-based Compensation Expense	$65	$43	$191	$129	'

LongTerm_Incentive_Plan_Units_2

Long-Term Incentive Plan Units (Roll-Forward Of Company's LTIP Units Outstanding) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'	'	'	'
Exercised	-1,822	-1,782	-1,822	-1,782
Long-Term Incentive Plan Units [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'	'	'	'
LTIP Units Outstanding	411,052	397,096	411,052	397,096
Granted	5,841	5,466	5,841	5,466
Exercised	-1,822	-1,782	-1,822	-1,782
LTIP Units Outstanding	415,071	400,780	415,071	400,780
LTIP Units Vested and Outstanding	398,958	392,814	398,958	392,814
Manager [Member] | Long-Term Incentive Plan Units [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'	'	'	'
LTIP Units Outstanding	375,000	375,000	375,000	375,000
Granted	0	0	0	0
Exercised	0	0	0	0
LTIP Units Outstanding	375,000	375,000	375,000	375,000
LTIP Units Vested and Outstanding	375,000	375,000	375,000	375,000
Non-Manager [Member] | Long-Term Incentive Plan Units [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'	'	'	'
LTIP Units Outstanding	36,052	22,096	36,052	22,096
Granted	5,841	5,466	5,841	5,466
Exercised	-1,822	-1,782	-1,822	-1,782
LTIP Units Outstanding	40,071	25,780	40,071	25,780
LTIP Units Vested and Outstanding	23,958	17,814	23,958	17,814

Noncontrolling_Interests_Detai

Non-controlling Interests (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Jan. 02, 2013	Sep. 30, 2014	Sep. 30, 2014
In Thousands, except Share data, unless otherwise specified			Noncontrolling Interest [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]	Non-controlling interest in Operating Partnership [Member]	Non-controlling interest in Operating Partnership [Member]	Non-controlling interest of joint venture partner [Member]
							Noncontrolling Interest [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]	'	'	'	'	'	'	'	'	'
Operating Partnership Units Issued	'	'	'	'	'	'	212,000	'	'
Holding Period Operating Partnership Units	'	'	'	'	'	'	'	'2 years	'
Operating Partnership Units	'	'	'	'	'	'	'	212,000	'
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	'	'	'	'	'	'	'	0.60%	5.00%
Stockholders' Equity Attributable to Noncontrolling Interest	$6,730	$5,648	$6,730	$5,648	$4,629	$0	'	'	$1,700

Common_Share_Capitalization_Na

Common Share Capitalization (Narrative) (Details) (USD $)	0 Months Ended		3 Months Ended		9 Months Ended		38 Months Ended
	Sep. 08, 2014	Aug. 04, 2011	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014
					Dividend	Dividend
Common Stock Capitalization [Line Items]	'	'	'	'	'	'	'
Number of Dividends Authorized	'	'	'	'	3	3	'
Common Shares Issued And Outstanding Upon Conversion of All Convertible Securities	'	'	34,070,643	26,031,717	34,070,643	26,031,717	34,070,643
Shareholders Equity Per Share Upon Conversion Of All Convertible Units (in usd per share)	'	'	$23.79	$24.19	$23.79	$24.19	$23.79
Dividends (in usd per share)	'	'	$0.77	$0.77	$2.31	$3.06	'
Payments of Dividends	'	'	($20,100,000)	($20,000,000)	($60,210,000)	($72,016,000)	'
Aggregate cost of shares repurchase	'	10,000,000	'	'	'	'	'
Shares repurchased	'	'	'	'	'	'	-217,619
Aggregate cost of shares repurchased	'	'	'	'	'	'	4,500,000
Average price per share repurchased (in usd per share)	'	'	'	'	'	'	$20.59
Stock Issued During Period, Shares, New Issues	8,000,000	'	8,000,000	0	8,000,000	5,000,000	'
Net proceeds from share issuance	$188,200,000	'	'	'	'	'	'

Common_Share_Capitalization_Su

Common Share Capitalization (Summary Of Common Shares Outstanding) (Details)	0 Months Ended	3 Months Ended		9 Months Ended
	Sep. 08, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Common Shares Outstanding, period begin	'	25,441,750	25,412,011	25,428,186	20,370,469
Stock Issued During Period, Shares, New Issues	8,000,000	8,000,000	0	8,000,000	5,000,000
Shares issued in connection with incentive fee payment	'	0	5,144	13,564	46,686
LTIP Units Exercised	'	1,822	1,782	1,822	1,782
Common Shares Outstanding, period end	'	33,443,572	25,418,937	33,443,572	25,418,937

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Net increase (decrease) in shareholders' equity resulting from operations	'		'		'		'
Net Income (Loss) Attributable to Parent	$12,948		$11,727		$56,530		$63,662
Net Income (Loss) Attributable to Participating Non-controlling Interest	98	[1]	96	[1]	456	[1]	612	[1]
Net income (loss) attributable to parent and participating non-controlling interest	13,046		11,823		56,986		64,274
Net increase in shareholders' equity resulting from operations– common shares	12,756		11,546		55,653		62,579
Net increase in shareholders' equity resulting from operations– LTIP units	192		181		877		1,083
Dividends Paid(2):	'		'		'		'
Common shareholders	-19,590	[2]	-19,571	[2]	-58,934	[2]	-70,152	[2]
LTIP unit holders	-317	[2]	-306	[2]	-950	[2]	-1,216	[2]
Non-controlling Interest	-163	[2]	-163	[2]	-326	[2]	-648	[2]
Total dividends paid to common shareholders, LTIP unit holders, and non-controlling interest	-20,070	[2]	-20,040	[2]	-60,210	[2],[3]	-72,016	[2],[3]
Undistributed (Distributed in excess of) earnings:	'		'		'		'
Common shareholders	-6,834		-8,025		-3,281		-7,573
LTIP Unit holders	-125		-125		-73		-133
Non-controlling interest	-65		-67		130		-36
Total undistributed (distributed in excess of) earnings attributable to common shareholders, LTIP unit holders, and non-controlling interest	-7,024		-8,217		-3,224		-7,742
Weighted average shares outstanding (basic and diluted):	'		'		'		'
Weighted average common shares outstanding	27,442,146		25,415,809		26,113,839		22,968,604
Weighted average participating LTIP units	411,926		397,897		411,346		397,366
Weighted average non-controlling interest units	212,000		212,000		212,000		212,000
Basic earnings per common share:	'		'		'		'
Distributed (in usd per share)	$0.77		$0.77		$2.31		$3.06
Undistributed (in usd per share)	($0.31)		($0.32)		($0.18)		($0.33)
Basic earnings per common share (in usd per share)	$0.46		$0.45		$2.13		$2.73
Diluted earnings per common share:	'		'		'		'
Distributed (in usd per share)	$0.77		$0.77		$2.31		$3.06
Undistributed (in usd per share)	($0.31)		($0.32)		($0.18)		($0.33)
Diluted earnings per common share (in usd per share)	$0.46		$0.45		$2.13		$2.73
Net Income (Loss) Attributable to Non-Participating Non-controlling Interest	$100		'		$200		'
[1]	For the three and nine month periods ended September 30, 2014, excludes net increase in equity resulting from operations of $0.1 million and $0.2 million, respectively attributable to the joint venture partner, which has a non-participating interest as described in Note 9.
[2]	The Company pays quarterly dividends in arrears, so a portion of the dividends paid in each calendar year relate to the prior year's earnings.
[3]	For the nine month periods ended September 30, 2014 and 2013, dividends totaling $2.31 and $3.06, respectively, per common share and convertible unit outstanding, were declared and paid.

Counterparty_Risk_Narrative_De

Counterparty Risk (Narrative) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Risks and Uncertainties [Abstract]	'	'	'	'
Cash and Cash Equivalents, at Carrying Value	$129,124,000	$183,489,000	$186,737,000	$59,084,000
Investments held with dealers as collateral	1,560,000,000	1,460,000,000	'	'
Unencumbered investments held in custody	332,200,000	'	'	'
Concentration risk threshold	15.00%	'	'	'
Pledged Financial Instruments, Not Separately Reported, Securities For Repurchase Agreements Unsettled	$27,000,000	$13,300,000	'	'

Counterparty_Risk_Of_Total_Col

Counterparty Risk (% Of Total Collateral On Reverse Repurchase Agreements) (Details) (Royal Bank of Canada [Member])	Sep. 30, 2014
Royal Bank of Canada [Member]	'
Concentration Risk [Line Items]	'
% of Total Collateral on Reverse Repurchase Agreements	19.00%

Counterparty_Risk_Of_Due_from_

Counterparty Risk (% Of Due from Brokers) (Details)	Sep. 30, 2014
Morgan Stanley [Member]	'
Concentration Risk [Line Items]	'
% of Total Due from Brokers	50.00%
JP Morgan Securities Inc [Member]	'
Concentration Risk [Line Items]	'
% of Total Due from Brokers	24.00%

Counterparty_Risk_Of_Total_Rec

Counterparty Risk (% Of Total Receivable For Securities Sold) (Details)	Sep. 30, 2014
CS First Boston [Member]	'
Concentration Risk [Line Items]	'
% of Total Receivable for Securities Sold	26.00%
Citigroup [Member]	'
Concentration Risk [Line Items]	'
% of Total Receivable for Securities Sold	21.00%

Counterparty_Risk_Cash_and_Cas

Counterparty Risk (Cash and Cash Equivalents) (Details)	Sep. 30, 2014	Dec. 31, 2013
Bank of New York Mellon Corporation [Member]	'	'
Concentration Risk [Line Items]	'	'
Concentration risk percentage, cash and cash equivalents	100.00%	73.00%
JP Morgan Prime Money Market Premier Fund [Member]	'	'
Concentration Risk [Line Items]	'	'
Concentration risk percentage, cash and cash equivalents	0.00%	27.00%

Offsetting_of_Assets_and_Liabi2

Offsetting of Assets and Liabilities (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
Offsetting of Assets and Liabilities [Line Items]	'		'
Financial derivatives–assets, at fair value-	$56,366,000	[1]	$59,664,000	[1]
Fair value repurchase agreements	47,039,000	[1]	27,962,000	[1]
Financial derivatives–liabilities, at fair value-	-47,331,000	[1]	-44,791,000	[1]
Reverse Repurchase Agreements	-1,395,132,000	[1]	-1,236,166,000	[1]
Derivative Liability Instruments available for offset	-22,108,000		-24,162,000
Reverse Repurchase Agreements Available for Offset	-47,039,000		-27,962,000
Derivative Asset Instruments available for offset	22,108,000		24,162,000
Repurchase Agreements Available for Offset	47,039,000		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	1,580,000,000		1,480,000,000
Financial Derivatives - Assets [Member]	'		'
Offsetting of Assets and Liabilities [Line Items]	'		'
Financial derivatives–assets, at fair value-	56,366,000	[2],[3]	59,664,000	[2],[4]
Financial Instruments Pledged as Collateral	0	[5],[6]	0	[5],[6]
Cash Collateral (Received) Pledged	-11,773,000	[5],[6]	-17,273,000	[5],[6]
Derivatives and Related Collateral Net	22,484,000		18,229,000
Excess cash collateral	24,400,000		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]
Reverse Repurchase Agreements [Member]	'		'
Offsetting of Assets and Liabilities [Line Items]	'		'
Financial Instruments Pledged as Collateral	1,333,817,000	[5],[6]	1,205,278,000	[5],[6]
Cash Collateral (Received) Pledged	14,276,000	[5],[6]	2,926,000	[5],[6]
Financial Derivatives - Liabilities [Member]	'		'
Offsetting of Assets and Liabilities [Line Items]	'		'
Financial derivatives–liabilities, at fair value-	-47,331,000	[2],[3]	-44,791,000	[2],[4]
Financial Instruments Pledged as Collateral	0	[5],[6]	0	[5],[6]
Cash Collateral (Received) Pledged	25,223,000	[5],[6]	20,629,000	[5],[6]
Derivatives and Related Collateral Net	0		0
Excess cash collateral	$27,700,000		$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, 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]	For the purpose of this presentation, for each row the total amount of financial instruments transferred or 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 transferred or pledged as collateral related to our reverse repurchase agreements and cash collateral pledged on our financial derivative liabilities. Total financial instruments transferred or pledged as collateral on our reverse repurchase agreements as of September 30, 2014 and December 31, 2013 were $1.58 billion and $1.48 billion, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $24.4 million and $3.2 million, respectively. As of September 30, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $27.7 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.

Financial_Highlights_Narrative

Financial Highlights (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Financial Highlights [Abstract]	'	'	'	'
Market based total return	-4.54%	1.97%	7.65%	44.75%

Financial_Highlights_Results_O

Financial Highlights (Results Of Operations For A Share Outstanding) (Details) (USD $)

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2012

Increase (Decrease) Equity Per Share [Roll Forward]

'

'

'

'

'

'

'

'

Beginning Shareholders' Equity Per Share (6/30/2014, 6/30/2013, 12/31/2013, and 12/31/2012, respectively)

$24.53

$24.92

$24.40

$24.86

'

'

'

'

Net Investment Income

$0.46

$0.57

$1.52

$1.62

'

'

'

'

Net Realized/Unrealized Gains (Losses)

$0.02

($0.10)

$0.67

$1.18

'

'

'

'

Results of Operations Attributable to Equity

$0.48

$0.47

$2.19

$2.80

'

'

'

'

Less: Results of Operations Attributable to Non-controlling Interests

($0.01)

$0

($0.03)

($0.03)

'

'

'

'

Results of Operations Attributable to Shareholders' Equity

$0.47

[1]

$0.47

[1]

$2.16

[1]

$2.77

[1]

'

'

'

'

Dividends Paid Per Common Share

($0.77)

($0.77)

($2.31)

($3.06)

'

'

'

'

Weighted Average Share Impact on Dividends Paid (2)

$0.03

[2]

($0.02)

[2]

$0

[2]

($0.08)

[2]

'

'

'

'

Accretive (Dilutive) Effect of Share Issuances (Net of Offering Costs), Share Repurchases, and Adjustments to Non-controlling Interest

($0.18)

($0.01)

($0.17)

$0.10

'

'

'

'

Ending Shareholders' Equity Per Share (9/30/2014, 9/30/2013, 9/30/2014, and 9/30/2013, respectively)(3)

$24.08

[3]

$24.59

[3]

$24.08

[3]

$24.59

[3]

'

'

'

'

Shares Outstanding, end of period

33,443,572

25,418,937

33,443,572

25,418,937

25,441,750

25,428,186

25,412,011

20,370,469

Shareholders Equity Per Share Upon Conversion Of All Convertible Units (in usd per share)

$23.79

$24.19

$23.79

$24.19

'

'

'

'

[1]

Calculated based on average common shares outstanding and can differ from the calculation for EPS (See Note 11).

[2]

Per share impact on dividends paid relating to share issuances/repurchases during the period as well as dividends paid to LTIP and OP Unit holders.

[3]

If all LTIP units and OP Units previously issued were vested and exchanged for common shares as of September 30, 2014 and 2013, shareholders' equity per share would be $23.79 and $24.19, respectively.

Financial_Highlights_Net_Asset

Financial Highlights (Net Asset Value Based Total Return For A Shareholder) (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Financial Highlights [Abstract]	'		'		'		'
Total Return	1.32%	[1]	1.82%	[1]	8.44%	[1]	11.57%	[1]
[1]	Total return is calculated assuming reinvestment of distributions at shareholders' equity per share during the period.

Financial_Highlights_Net_Asset1

Financial Highlights (Net Asset Value Based Total Return For A Shareholder Assuming Conversion Of All LTIP and OP Units) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014		Sep. 30, 2014
Financial Highlights [Line Items]	'		'
Total LTIP and OP Units Outstanding	627,071		627,071
Total Return	0.08%	[1]	7.11%	[1]
Percentage of LTIP and OP units outstanding	1.84%		1.84%
[1]	Total return is calculated assuming all LTIP and OP Units had been converted into common shares at September 30, 2014. LTIP and OP Units outstanding at September 30, 2014 totaled 627,071 and represent 1.84% of total common shares and LTIP and OP Units outstanding as of that date.

Financial_Highlights_Net_Inves

Financial Highlights (Net Investment Income Ratio To Average Equity) (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Financial Highlights [Abstract]	'		'		'		'
Net Investment Income	8.02%	[1],[2],[3]	9.99%	[1],[2],[3]	8.27%	[1],[2],[3]	8.89%	[1],[2],[3]
[1]	Includes all items of income and expense on an annualized basis except for incentive fee expense which is included on a non-annualized basis.
[2]	Average equity is calculated using month end values.
[3]	Includes incentive fee in calculation which can vary substantially over periods.

Financial_Highlights_Expense_R

Financial Highlights (Expense Ratios To Average Equity) (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Financial Highlights [Abstract]	'		'		'		'
Operating expenses before incentive fee, interest expense, and other investment related expenses	-3.03%	[1],[2]	-2.67%	[1],[2]	-2.86%	[1],[2]	-2.77%	[1],[2]
Ratio Of Incentive Fee To Average Equity	-0.21%	[1],[2]	-0.32%	[1],[2]	-0.22%	[1],[2]	-0.91%	[1],[2]
Interest expense and other investment related expenses	-1.98%	[1],[2]	-2.11%	[1],[2]	-2.08%	[1],[2]	-1.94%	[1],[2]
Total Expenses	-5.22%	[1],[2]	-5.10%	[1],[2]	-5.16%	[1],[2]	-5.62%	[1],[2]
[1]	Average equity is calculated using month end values.
[2]	Ratios are annualized except for the incentive fee which is not annualized.

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent Event [Member], USD $)	0 Months Ended
	Nov. 04, 2014
Subsequent Event [Member]	'
Subsequent Event [Line Items]	'
Dividend Per Share	$0.77
Declared date	4-Nov-14
Payment Date	15-Dec-14
Record Date	1-Dec-14