CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands	Total USD ($)	Common Stock [Member]	Preferred Stock [Member] USD ($)	Common Stock and Paid in Capital [Member] USD ($)	Retained Earnings (Accumulated Deficit) [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Unearned Restricted ESOP Shares [Member] USD ($)
Balance, beginning of the period, shares at Dec. 31, 2010		(16,165)
Net income	$ 5,457				$ 5,457
Change in valuation of securities - available-for-sale, net of income tax	1,685					1,685
Other Comprehensive Income (Loss), Transfers from Held-to-maturity to Available-for-Sale Securities, Net of Tax	16					16
Accretion of preferred stock discount	0		1,701		(1,701)
Gain on repurchase of preferred stock	0
Accrual of dividends on preferred stock	(6,200)				(6,200)
Accrual of dividends on common stock	(1,673)				(1,673)
Proceeds from issuance of common stock for stockholder reinvestment program, net of registration expenses amount	21,556			21,556
Amortization of compensation related to restricted stock grants, net of shares surrendered	111			111
Amortization of compensation related to stock options	25			25
Other	1		1
Issuance of unvested restricted common stock, net		16
Issuance of common stock for stockholder reinvestment program		1,372
Net number of shares issued during the period		1,388
Balance, end of the period at Dec. 31, 2011	532,450		120,702	531,149	(119,465)	2,051	(1,987)
Balance, end of the period, shares at Dec. 31, 2011	(17,519)	(17,553)					(34)
Net income	64,882				64,882
Change in valuation of securities - available-for-sale, net of income tax	42					42
Other Comprehensive Income (Loss), Transfers from Held-to-maturity to Available-for-Sale Securities, Net of Tax	8					8
Accretion of preferred stock discount	0		3,298		(3,298)
Repurchase of preferred stock	124,000		(124,000)
Gain on repurchase of preferred stock	2,471				2,471
Accrual of dividends on preferred stock	(4,938)				(4,938)
Accrual of dividends on common stock	(754)				(754)
Proceeds from issuance of common stock for stockholder reinvestment program, net of registration expenses amount	36,317			36,317
Amortization of compensation related to restricted stock grants, net of shares surrendered	434			434
Amortization of compensation related to stock options	7			7
Issuance of unvested restricted common stock, net		87
Issuance of common stock for stockholder reinvestment program		1,815
Net number of shares issued during the period		1,902
Balance, end of the period at Dec. 31, 2012	506,919		0	567,907	(61,102)	2,101	(1,987)
Balance, end of the period, shares at Dec. 31, 2012	(19,421)	(19,455)					(34)
Net income	46,555				46,555
Change in valuation of securities - available-for-sale, net of income tax	(5,097)					(5,097)
Gain on repurchase of preferred stock	0
Accrual of dividends on preferred stock	0
Accrual of dividends on common stock	(10,526)				(10,526)
Proceeds from issuance of common stock for stockholder reinvestment program, net of registration expenses amount	72			72
Amortization of compensation related to restricted stock grants, net of shares surrendered	1,049			1,049
Issuance of unvested restricted common stock, net		86
Issuance of common stock for stockholder reinvestment program		2
Net number of shares issued during the period		88
Balance, end of the period at Dec. 31, 2013	$ 538,972		$ 0	$ 569,028	$ (25,073)	$ (2,996)	$ (1,987)
Balance, end of the period, shares at Dec. 31, 2013	(19,509)	(19,543)					(34)