CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Balances at Dec. 31, 2009	$ 500,896	$ 267	$ 274,663	$ 327,948	$ (57,770)	$ (44,212)
Balances (in shares) at Dec. 31, 2009		26,749			1,678
Increase (Decrease) in Stockholders' Equity
Net income (loss) (excluding noncontrolling interest in net income of subsidiary of $174 and $272 for the year ended 2011 and 2010, respectively)	(32,693)			(32,693)
Other comprehensive income (loss)	8,159					8,159
Issuance of common stock under share-based compensation plans	1,828	2	1,826
Issuance of common stock under share-based compensation plans (in shares)		186
Tax effect of share-based compensation plans and other	(1,010)		(1,010)
Share-based compensation expense	5,690		5,690
Dividends declared on common stock	(3,126)			(3,126)
Balances at Dec. 31, 2010	479,744	269	281,169	292,129	(57,770)	(36,053)
Balances (in shares) at Dec. 31, 2010		26,935			1,678
Increase (Decrease) in Stockholders' Equity
Net income (loss) (excluding noncontrolling interest in net income of subsidiary of $174 and $272 for the year ended 2011 and 2010, respectively)	6,159			6,159
Other comprehensive income (loss)	(22,349)					(22,349)
Issuance of common stock under share-based compensation plans	763	2	761
Issuance of common stock under share-based compensation plans (in shares)		165
Tax effect of share-based compensation plans and other	(612)		(612)
Share-based compensation expense	6,450		6,450
Purchase of noncontrolling interest in subsidiary	(1,360)		(1,360)
Dividends declared on common stock	(3,180)			(3,180)
Balances at Dec. 31, 2011	465,615	271	286,408	295,108	(57,770)	(58,402)
Balances (in shares) at Dec. 31, 2011		27,100			1,678
Increase (Decrease) in Stockholders' Equity
Net income (loss) (excluding noncontrolling interest in net income of subsidiary of $174 and $272 for the year ended 2011 and 2010, respectively)	(7,732)			(7,732)
Other comprehensive income (loss)	1,030					1,030
Issuance of common stock under share-based compensation plans		2	(2)
Issuance of common stock under share-based compensation plans (in shares)		196
Tax effect of share-based compensation plans and other	(2,763)		(2,763)
Share-based compensation expense	6,068		6,068
Dividends declared on common stock	(3,219)			(3,219)
Balances at Dec. 31, 2012	$ 458,999	$ 273	$ 289,711	$ 284,157	$ (57,770)	$ (57,372)
Balances (in shares) at Dec. 31, 2012		27,296			1,678