Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Mortgage-backed securities, at fair value (including pledged assets of $16,538,214 and $17,049,670 at September 30, 2014 and December 31, 2013, respectively)	$ 17,587,010	$ 17,642,532
Mortgage loans held for investment, at fair value	31,460
Cash and cash equivalents (including pledged cash of $323,791 and $225,379, respectively)	627,595	988,705
Unsettled purchased mortgage-backed securities, at fair value	24,792
Receivable for securities sold	5,197	231,214
Accrued interest receivable	54,274	55,156
Principal payments receivable	111,439	95,021
Other investments	41,252	34,910
Derivative assets, at fair value	27,151	26,989
Other assets	6,630	2,833
Total assets	18,516,800	19,077,360
Liabilities and shareholders’ equity
Repurchase agreements	15,759,831	16,129,683
Dollar roll liability		351,826
Payable for unsettled securities	24,750
Accrued interest payable	6,968	8,279
Derivative liabilities, at fair value	244,591	167,607
Dividends payable	53,014	52,929
Accounts payable and other liabilities	6,850	2,935
Total liabilities	16,096,004	16,713,259
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, 96,771,158 and 96,601,523 shares issued and outstanding, respectively	97	97
Additional paid-in capital	2,454,718	2,453,018
Accumulated deficit	(518,036)	(359,214)
Accumulated other comprehensive income (loss)	205,765	(8,052)
Total shareholders’ equity	2,420,796	2,364,101
Total liabilities and shareholders’ equity	$ 18,516,800	$ 19,077,360