CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	[1]	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2012	$ 399	$ 291,065	$ (1,432)		$ 104,445	$ (51,107)	$ 343,370
Balance (in shares) at Dec. 31, 2012	39,924					(4,001)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					11,110		11,110
Other comprehensive income (loss)			891				891
Excess tax benefit from share-based compensation		2,828					2,828
Restricted common stock issued under share-based compensation plans	$ 4	(2,020)				$ 2,020	4
Restricted common stock issued under share-based compensation plans (in shares)	375					153
Stock option exercises		(7,466)				$ 10,467	3,001
Stock option exercises (in shares)						780
Common stock repurchased under share-based compensation plans						$ (6,515)	(6,515)
Common stock repurchased under share-based compensation plans (in shares)						(471)
Share repurchases						$ (22,881)	(22,881)
Share repurchases (Note 7) (in shares)						(1,768)
Dividends declared ($0.36 per share)					(12,801)		(12,801)
Share-based compensation expense		7,007					7,007
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 income (loss)					(1,337)		(1,337)
Other comprehensive income (loss)			(3,821)				(3,821)
Excess tax deficiency from share-based compensation		(966)					(966)
Restricted common stock issued under share-based compensation plans	$ 5	(1,478)				$ 4,479	3,006
Restricted common stock issued under share-based compensation plans (in shares)	537					347
Stock option exercises		(1,467)				$ 13,965	12,498
Stock option exercises (in shares)						1,081
Common stock repurchased under share-based compensation plans						$ (3,982)	(3,982)
Common stock repurchased under share-based compensation plans (in shares)						(276)
Dividends declared ($0.36 per share)					(13,026)		(13,026)
Share-based compensation expense		6,551					6,551
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 income (loss)					(11,938)		(11,938)
Other comprehensive income (loss)			(3,587)				(3,587)
Excess tax benefit from share-based compensation		174					174
Restricted common stock issued under share-based compensation plans		(4,631)				$ 10,011	5,380
Restricted common stock issued under share-based compensation plans (in shares)						776
Stock option exercises		(187)				$ 4,073	3,886
Stock option exercises (in shares)						308
Common stock repurchased under share-based compensation plans						$ (4,183)	(4,183)
Common stock repurchased under share-based compensation plans (in shares)						(230)
Dividends declared ($0.36 per share)					(13,462)		(13,462)
Share-based compensation expense		6,914					6,914
Balance at Dec. 31, 2015	$ 408	$ 296,324	$ (7,949)		$ 62,991	$ (43,653)	$ 308,121
Balance (in shares) at Dec. 31, 2015	40,836					(3,301)

[1] AOCI—Accumulated Other Comprehensive Income (Loss)