CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2013	$ 403	$ 291,414	$ (541)	$ 102,754	$ (68,016)	$ 326,014
Balance (in shares) at Dec. 31, 2013	40,299				(5,307)
Increase (Decrease) in Stockholders' Equity
Net loss				(5,717)		(5,717)
Foreign currency translation adjustment			1,055			1,055
Unrealized losses on cash flow hedges			(810)			(810)
Tax deficiency from share-based compensation		(787)				(787)
Restricted common stock issued under share-based compensation plans	$ 5	3,001				3,006
Restricted common stock issued under share-based compensation plans (in shares)	532
Stock option exercises		(1,294)			$ 8,091	6,797
Stock option exercises (in shares)					628
Common stock repurchased under share-based compensation plans					$ (3,627)	(3,627)
Common stock repurchased under share-based compensation plans (in shares)					(252)
Dividends declared ($0.18 per share)				(6,430)		(6,430)
Share-based compensation expense		3,422				3,422
Balance at Jun. 30, 2014	$ 408	295,756	(296)	90,607	$ (63,552)	322,923
Balance (in shares) at Jun. 30, 2014	40,831				(4,931)
Balance at Dec. 31, 2014	$ 408	294,054	(4,362)	88,391	$ (53,554)	324,937
Balance (in shares) at Dec. 31, 2014	40,836				(4,155)
Increase (Decrease) in Stockholders' Equity
Net loss				(1,508)		(1,508)
Foreign currency translation adjustment			(27)			(27)
Unrealized losses on cash flow hedges			(548)			(548)
Tax benefit from share-based compensation		297				297
Restricted common stock issued under share-based compensation plans		(4,560)			$ 9,941	5,381
Restricted common stock issued under share-based compensation plans (in shares)					770
Stock option exercises		(136)			$ 1,482	1,346
Stock option exercises (in shares)					112
Common stock repurchased under share-based compensation plans					$ (4,017)	(4,017)
Common stock repurchased under share-based compensation plans (in shares)					(220)
Dividends declared ($0.18 per share)				(6,713)		(6,713)
Share-based compensation expense		3,692				3,692
Balance at Jun. 30, 2015	$ 408	$ 293,347	$ (4,937)	$ 80,170	$ (46,148)	$ 322,840
Balance (in shares) at Jun. 30, 2015	40,836				(3,493)