CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (USD $) In Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2010	$ 315,143	$ 5,915	$ 12,480	$ (120,827)	$ (2,318)	$ 96,902	$ 307,295
Net income (loss)	0	0	0	(41,150)	0	(2,950)	(44,100)
Other comprehensive income	0	0	0	0	18,384	0	18,384
Accretion of discount on preferred stock	3,466	0	0	(3,466)	0	0	0
Preferred stock dividends declared	0	0	0	(17,908)	0	0	(17,908)
Balance at Dec. 31, 2011	318,609	5,915	12,480	(183,351)	16,066	93,952	263,671
Net income (loss)	0	0	0	14,406	0	(445)	13,961
Other comprehensive income	0	0	0	0	17,818	0	17,818
Accretion of discount on preferred stock	1,767	0	0	(1,767)	0	0	0
Preferred stock dividends declared	0	0	0	(9,317)	0	0	(9,317)
Balance at Jun. 30, 2012	$ 320,376	$ 5,915	$ 12,480	$ (180,029)	$ 33,884	$ 93,507	$ 286,133