CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Total	Preferred Stock, Series A 8.50% Cumulative Redeemable - Liquidation Preference $25.00 per Share:	Common Stock, Par Value $.01:	Additional Paid-in Capital, in excess of Par:	Accumulated Deficit:	Accumulated Other Comprehensive Income:
Balance at Dec. 31, 2010	$ 2,250,447,000	$ 38,000	$ 2,805,000	$ 2,184,493,000	$ (191,569,000)	$ 254,680,000
Balance (in shares) at Dec. 31, 2010		3,840,000	280,481,000
Increase (Decrease) in Stockholders' Equity
Issuance of common stock, net of expenses			751,000	605,015,000
Issuance of common stock, net of expenses (in shares)			75,110,000
Equity-based compensation expense and other				2,983,000
Net income	245,850,000				245,850,000
Dividends declared on common stock					(261,750,000)
Dividends declared on preferred stock	(6,120,000)				(6,120,000)
Dividends attributable to DERs					(1,196,000)
Change in unrealized gains on MBS, net						(199,239,000)
Change in unrealized losses on derivative hedging instruments						4,483,000
Balance at Sep. 30, 2011	$ 2,641,224,000	$ 38,000	$ 3,556,000	$ 2,792,491,000	$ (214,785,000)	$ 59,924,000
Balance (in shares) at Sep. 30, 2011		3,840,000	355,591,000