CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Residential mortgage investments ($13.29 and $13.54 billion pledged at March 31, 2016 and December 31, 2015, respectively)	$ 13,835,131	$ 14,154,737
Cash collateral receivable from interest rate swap counterparties	72,037	50,193
Interest rate swap agreements at fair value	802	7,720
Cash and cash equivalents	52,054	54,185
Receivables and other assets	149,915	179,531
Total assets	14,109,939	14,446,366
Liabilities
Secured borrowings	12,623,699	12,958,394
Interest rate swap agreements at fair value	46,309	26,061
Unsecured borrowings	98,014	97,986
Common stock dividend payable	25,592	25,979
Accounts payable and accrued expenses	32,932	39,622
Total liabilities	12,826,546	13,148,042
Stockholders' equity
Common stock - $0.01 par value; 250,000 shares authorized: 95,947 and 95,825 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	959	958
Paid-in capital	1,309,723	1,310,563
Accumulated deficit	(346,464)	(346,464)
Accumulated other comprehensive income	121,805	136,095
Total stockholders' equity	1,283,393	1,298,324
Total liabilities and equity	14,109,939	14,446,366
Redeemable Preferred Stock [Member] | Cumulative Redeemable Preferred Stock, Series E [Member]
Stockholders' equity
Cumulative preferred stock	$ 197,370	$ 197,172