Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	Total		Common Stock [Member]	Preferred Stock Including Additional Paid in Capital [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2010	$ 518,878		$ 76,307	$ 58,089	$ 652,288	$ (269,154)	$ 1,348
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/ (loss) attributable to the Company	26,075	[1]	0	0	0	26,075	0
Other comprehensive income/ (loss), net of tax	2,127		0	0	0	0	2,127
Dividends paid to common shareholders	(2,314)		0	0	(2,314)	0	0
Dividends paid to preferred shareholders	(218)		0	0	(218)	0	0
Net proceeds from issuance of:
Shares of common stock	5,534		828	0	4,706	0	0
Shares through incentive stock grants, net of cancellations and forfeitures	0		833	0	(833)	0	0
Amortization of stock compensation and employee stock purchase plan	4,869		0	0	4,869	0	0
Stock options exercised	181		36	0	145	0	0
Tax deficiency from certain stock compensation awards	(1,582)		0	0	(1,582)	0	0
Other equity adjustments	(1,896)		0	0	(1,896)	0	0
Ending Balance at Sep. 30, 2011	551,654		78,004	58,089	655,165	(243,079)	3,475
Beginning Balance at Dec. 31, 2011	566,125		78,023	58,089	656,436	(230,017)	3,594
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/ (loss) attributable to the Company	40,179	[1]	0	0	0	40,179	0
Other comprehensive income/ (loss), net of tax	26		0	0	0	0	26
Dividends paid to common shareholders	(2,344)		0	0	(2,344)	0	0
Dividends paid to preferred shareholders	(218)		0	0	(218)	0	0
Repurchase of Carlyle warrants and Director's warrants	(15,000)		0	0	(15,000)	0	0
Net proceeds from issuance of:
Shares of common stock	1,215		194	0	1,021	0	0
Shares through incentive stock grants, net of cancellations and forfeitures	0		626	0	(626)	0	0
Amortization of stock compensation and employee stock purchase plan	5,832		0	0	5,832	0	0
Stock options exercised	603		87	0	516	0	0
Tax deficiency from certain stock compensation awards	(1,098)		0	0	(1,098)	0	0
Other equity adjustments	282		0	0	282	0	0
Ending Balance at Sep. 30, 2012	$ 595,602		$ 78,930	$ 58,089	$ 644,801	$ (189,838)	$ 3,620

[1] Net income from discontinued operations for the three months ended September 30, 2012, and 2011 of $1.7 million, and $1.6 million, respectively, and for the nine months ended September 30, 2012, and 2011, of $5.8 million and $4.8 million, respectively, are included in Holding Company and Eliminations in the calculation of net loss attributable to the Company.