CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Common Stock in Treasury [Member]
Beginning Balance at Dec. 31, 2012	$ 125,765	$ 371	$ 197,113	$ 967,473	$ (7,930)	$ (1,031,262)
Beginning Balance (in shares) at Dec. 31, 2012		37,069				(13,744)
Net income (loss)	(17,271)			(17,271)
Other comprehensive income, net of income tax	95				95
Equity award vesting and exercises	0		(2,948)			$ 2,948
Equity award vesting and exercises (in shares)						59
Tax benefit from equity awards	(2,629)		(2,629)
Stock-based compensation	3,093		3,093
Shares tendered for taxes	(368)					$ (368)
Shares tendered for taxes (in shares)						(22)
Ending Balance at Mar. 31, 2013	108,685	$ 371	194,629	950,202	(7,835)	$ (1,028,682)
Ending Balance (in shares) at Mar. 31, 2013		37,069				(13,707)
Net income (loss)	(9,753)			(9,753)
Other comprehensive income, net of income tax	10,981				10,981
Equity award vesting and exercises	0		(349)			$ 349
Equity award vesting and exercises (in shares)						9
Tax benefit from equity awards	(2,785)		(2,785)
Stock-based compensation	8,545		8,545
Shares tendered for taxes	(27)					$ (27)
Shares tendered for taxes (in shares)						(1)
Ending Balance at Dec. 31, 2013	115,646	$ 371	200,040	940,449	3,146	$ (1,028,360)
Ending Balance (in shares) at Dec. 31, 2013		37,069				(13,699)
Net income (loss)	759			759
Other comprehensive income, net of income tax	(238)				(238)
Equity award vesting and exercises	0		(2,845)			$ 2,845
Equity award vesting and exercises (in shares)						51
Tax benefit from equity awards	(1,792)		(1,792)
Stock-based compensation	2,551		2,551
Shares tendered for taxes	(721)					$ (721)
Shares tendered for taxes (in shares)						(19)
Issuance of shares for Director's compensation	38			(32)		$ 70
Issuance of shares for Director's compensation (in shares)						1
Ending Balance at Mar. 31, 2014	$ 116,243	$ 371	$ 197,954	$ 941,176	$ 2,908	$ (1,026,166)
Ending Balance (in shares) at Mar. 31, 2014		37,069				(13,666)