CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets
Residential mortgage investments ($13.63 and $13.48 billion pledged under repurchase arrangements at June 30, 2015 and December 31, 2014, respectively)	$ 14,155,863	$ 13,908,104
Cash collateral receivable from interest rate swap counterparties	53,326	53,139
Interest rate swap agreements at fair value	318	1,657
Cash and cash equivalents	198,600	307,526
Receivables and other assets	133,178	118,643
Total assets	14,541,285	14,389,069
Liabilities
Repurchase arrangements and similar borrowings	12,967,616	12,806,843
Interest rate swap agreements at fair value	27,401	27,034
Unsecured borrowings	100,000	100,000
Common stock dividend payable	30,706	34,054
Accounts payable and accrued expenses	35,014	30,367
Total liabilities	13,160,737	12,998,298
Stockholders' equity
Common stock - $0.01 par value; 250,000 shares authorized: 95,790 and 95,848 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	958	958
Paid-in capital	1,317,486	1,325,340
Accumulated deficit	(346,464)	(346,885)
Accumulated other comprehensive income	213,102	227,422
Total stockholders' equity	1,380,548	1,390,771
Total liabilities and equity	14,541,285	14,389,069
Redeemable Preferred Stock [Member] | Cumulative Redeemable Preferred Stock, Series E [Member]
Stockholders' equity
Cumulative preferred stock	$ 195,466	$ 183,936