Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of cash dividends declared on Series B preferred stock

The following table presents cash dividends declared by the Company on its Series B Preferred Stock from January 1, 2014 through December 31, 2016:

Year	Declaration Date	Record Date	Payment Date	Dividend Per Share
2016	November 22, 2016	December 6, 2016	December 30, 2016	$0.46875
	August 12, 2016	September 2, 2016	September 30, 2016	0.46875
	May 18, 2016	June 3, 2016	June 30, 2016	0.46875
	February 12, 2016	February 29, 2016	March 31, 2016	0.46875
2015	November 19, 2015	December 3, 2015	December 31, 2015	$0.46875
	August 24, 2015	September 9, 2015	September 30, 2015	0.46875
	May 18, 2015	June 2, 2015	June 30, 2015	0.46875
	February 13, 2015	February 27, 2015	March 31, 2015	0.46875
2014	November 21, 2014	December 5, 2014	December 31, 2014	$0.46875
	August 25, 2014	September 8, 2014	September 30, 2014	0.46875
	May 19, 2014	June 10, 2014	June 30, 2014	0.46875
	February 14, 2014	February 28, 2014	March 31, 2014	0.46875

Schedule of cash dividends declared on common stock

The following table presents cash dividends declared by the Company on its common stock from January 1, 2014 through December 31, 2016:

Year	Declaration Date	Record Date	Payment Date	Dividend Per Share
2016	December 14, 2016	December 28, 2016	January 31, 2017	$0.20	(1)
	September 15, 2016	September 28, 2016	October 31, 2016	0.20
	June 14, 2016	June 28, 2016	July 29, 2016	0.20
	March 11, 2016	March 28, 2016	April 29, 2016	0.20
2015	December 9, 2015	December 28, 2015	January 29, 2016	$0.20
	September 17, 2015	September 29, 2015	October 30, 2015	0.20
	June 15, 2015	June 29, 2015	July 31, 2015	0.20
	March 13, 2015	March 27, 2015	April 30, 2015	0.20
2014	December 9, 2014	December 26, 2014	January 30, 2015	$0.20
	September 17, 2014	September 29, 2014	October 31, 2014	0.20
	June 13, 2014	June 27, 2014	July 31, 2014	0.20
	March 10, 2014	March 28, 2014	April 30, 2014	0.20

(1)  At December 31, 2016, the Company had accrued dividends and dividend equivalents payable of $74.7 million related to the common stock dividend declared on December 14, 2016.

Schedule of changes in balances in each component of the entity's AOCI

The following table presents changes in the balances of each component of the Company’s AOCI for the years ended December 31, 2016, 2015 and 2014:

	For the Year Ended December 31,
	2016									2015									2014
(In Thousands)	Net Unrealized Gain/(Loss) on AFS Securities			Net  Unrealized Gain/(Loss) on Swaps			Total  AOCI			Net  Unrealized Gain/(Loss) on AFS Securities			Net  Unrealized Gain/(Loss) on Swaps			Total  AOCI			Net  Unrealized Gain/(Loss) on AFS Securities			Net  Unrealized Gain/(Loss) on Swaps			Total  AOCI
Balance at beginning of period	$	585,250		$	(69,399	)	$	515,851		$	813,515		$	(59,062	)	$	754,453		$	752,912		$	(15,217	)	$	737,695
OCI before reclassifications	72,560			22,678			95,238			(194,890		)	(10,337		)	(205,227		)	95,551			(44,292		)	51,259
Amounts reclassified from   AOCI (1)	(37,407		)	—			(37,407		)	(37,912		)	—			(37,912		)	(34,948		)	447			(34,501		)
Cumulative effect adjustment on adoption of revised accounting standard for repurchase agreement financing	—			—			—			4,537			—			4,537			—			—			—
Net OCI during period (2)	35,153			22,678			57,831			(228,265		)	(10,337		)	(238,602		)	60,603			(43,845		)	16,758
Balance at end of period	$	620,403		$	(46,721	)	$	573,682		$	585,250		$	(69,399	)	$	515,851		$	813,515		$	(59,062	)	$	754,453

(1)  See separate table below for details about these reclassifications.

(2)  For further information regarding changes in OCI, see the Company’s consolidated statements of comprehensive income/(loss).

Information about the significant amounts reclassified out of the entity's AOCI

The following table presents information about the significant amounts reclassified out of the Company’s AOCI for the years ended December 31, 2016, 2015, and 2014:

	For the Year Ended December 31,
	2016			2015			2014
Details about AOCI Components	Amounts Reclassified from AOCI									Affected Line Item in the Statement Where Net Income is Presented
(In Thousands)
AFS Securities:
Realized gain on sale of securities	$	(36,922	)	$	(37,207	)	$	(34,948	)	Gain on sales of MBS
OTTI recognized in earnings	(485		)	(705		)	—			Net impairment losses recognized in earnings
Total AFS Securities	(37,407		)	(37,912		)	(34,948		)
Swaps designated as cash flow hedges:
De-designated Swaps	—			—			447			Other, net
Total Swaps designated as cash flow hedges	—			—			447
Total reclassifications for period	$	(37,407	)	$	(37,912	)	$	(34,501	)