Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Stock [Member]	Total Attributed To Shareholders [Member]	Non-controlling Interest [Member]	Redeemable Non-controlling Interest [Member]
Beginning Balance at Dec. 31, 2010	$ 48,270	$ 63	$ 912,942	$ (863,503)	$ (308)	$ (924)	$ 48,270
Beginning Balance, shares at Dec. 31, 2010		6,251,821				20,000
Net income (loss)	145,420			145,420			145,420
Net unrealized gain (loss) on securities available-for-sale	294				294		294
Preferred stockholder dividend	(9,482)		(9,482)				(9,482)
Repurchase of common shares	(7,870)					(7,870)	(7,870)
Repurchase of common shares, shares		(135,000)				135,000
Issuance of common stock related to employee stock transactions	1,720		1,720				1,720
Issuance of common stock related to employee stock transactions, shares		71,474
Taxes paid on stock-based compensation	(720)		(720)				(720)
Stock-based compensation	5,523		5,523				5,523
Ending Balance at Dec. 31, 2011	183,155	63	909,983	(718,083)	(14)	(8,794)	183,155
Ending Balance, shares at Dec. 31, 2011		6,188,295				155,000
Net income (loss)	37,773			37,672			37,672	(3)	104
Net unrealized gain (loss) on securities available-for-sale	(273)				(273)		(273)
Preferred stockholder dividend
Preferred stock conversion	35,217	14	35,203				35,217
Preferred stock conversion, shares		1,349,300
Activity of noncontrolling interests, net									3,059
Repurchase of common shares	(8,940)					(8,940)	(8,940)
Repurchase of common shares, shares		(90,000)				90,000
Issuance of common stock related to employee stock transactions	3,188	4	3,184				3,188
Issuance of common stock related to employee stock transactions, shares		379,079
Taxes paid on stock-based compensation	(11,951)		(11,951)				(11,951)
Stock-based compensation	6,406		6,406				6,406
Ending Balance at Dec. 31, 2012	244,471	81	942,825	(680,411)	(287)	(17,734)	244,474	(3)	3,163
Ending Balance, shares at Dec. 31, 2012		7,826,674				245,000
Beginning Balance at Dec. 31, 2012	244,474
Net income (loss)	77,130			75,190			75,190	(59)	1,999
Net unrealized gain (loss) on securities available-for-sale	56				56		56
Preferred stockholder dividend
Foreign currency translation adjustment	81				81		81
Activity of noncontrolling interests, net									37,024
Issuance of common stock, net	191,578	13	191,565				191,578
Issuance of common stock, net, shares		1,298,386
Repurchase of common shares	(19,704)					(19,704)	(19,704)
Repurchase of common shares, shares		(105,000)				105,000
Issuance of common stock related to employee stock transactions	1,111	1	1,110				1,111
Issuance of common stock related to employee stock transactions, shares		85,461
Taxes paid on stock-based compensation	(7,513)		(7,513)
Stock-based compensation	7,657		7,657				7,657
Ending Balance at Dec. 31, 2013	$ 492,868	$ 95	$ 1,135,644	$ (605,221)	$ (150)	$ (37,438)	$ 492,930	$ (62)	$ 42,186
Ending Balance, shares at Dec. 31, 2013		9,105,521				350,000