Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Mortgage-backed securities, at fair value (including pledged assets of $15,882,265 and $16,538,214, respectively)	$ 16,925,004	$ 17,587,010
Mortgage loans held for investment, at fair value	123,301	31,460
Cash and cash equivalents (including pledged cash of $431,574 and $323,791, respectively)	627,673	627,595
Unsettled purchased mortgage-backed securities, at fair value	104,789	24,792
Receivable for securities sold	13,423	5,197
Accrued interest receivable	51,620	54,274
Principal payments receivable	106,522	111,439
Other investments	41,438	41,252
Derivative assets, at fair value	35,285	27,151
Other assets	7,213	6,630
Total assets	18,036,268	18,516,800
Liabilities and shareholders’ equity
Repurchase agreements	15,108,538	15,759,831
Payable for unsettled securities	103,995	24,750
Accrued interest payable	3,012	6,968
Derivative liabilities, at fair value	331,290	244,591
Dividends payable	53,023	53,014
Accounts payable and other liabilities	14,268	6,850
Total liabilities	15,614,126	16,096,004
Shareholders’ equity:
7.625% Series A Cumulative Redeemable Preferred stock, $.001 par value, 25,000,000 shares authorized, 11,500,000 shares issued and outstanding, respectively ($287,500 aggregate liquidation preference)	278,252	278,252
Common stock, $.001 par value, 200,000,000 shares authorized, 96,790,541 and 96,771,158 shares issued and outstanding, respectively	97	97
Additional paid-in capital	2,455,763	2,454,718
Accumulated deficit	(606,448)	(518,036)
Accumulated other comprehensive income	294,478	205,765
Total shareholders’ equity	2,422,142	2,420,796
Total liabilities and shareholders’ equity	$ 18,036,268	$ 18,516,800