CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Common stock, shares outstanding		73,414,000
Net income (loss)	$ 27,612
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2013	167,812	$ 734	$ 309,087	$ (168,727)	$ 32,832	$ (6,114)
Net income (loss)	27,612				27,612
Other comprehensive loss	(7,792)					(7,792)
Stock based compensation	7,498		7,498
Excess tax benefit over book expense from stock options exercised	2,318		2,318
Restricted stock issued		1,114,000
Restricted stock issued	11	$ 11
Restricted stock forfeited or withheld to satisfy tax obligations		(288,000)
Restricted stock forfeited or withheld to satisfy tax obligations	(1,319)	$ (2)		(1,317)
Purchase of treasury stock under stock repurchase plan	$ (32,455)			(32,455)
Exercise of common stock options	3,126,522	3,126,000
Exercise of common stock options	$ 14,113	$ 31	14,082
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2014	177,798	$ 774	332,985	(202,499)	60,444	(13,906)
Common stock, shares outstanding		77,366,000
Net income (loss)	(10,968)
Net income (loss)	(10,968)				(10,968)
Other comprehensive loss	(6,562)					(6,562)
Stock based compensation	10,185		10,185
Excess tax benefit over book expense from stock options exercised	2,050		2,050
Restricted stock issued		1,262,000
Restricted stock issued	12	$ 12
Restricted stock forfeited or withheld to satisfy tax obligations		(245,000)
Restricted stock forfeited or withheld to satisfy tax obligations	(1,838)	$ (2)		(1,836)
Purchase of treasury stock under stock repurchase plan	$ (39,075)			(39,075)
Exercise of common stock options	1,802,913	1,836,000
Exercise of common stock options	$ 7,006	$ 18	6,988
Performance Based Restricted Stock Units eligible to vest		498,000
Performance-Based Restricted Stock Units eligible to vest	(5)	$ (5)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2015	$ 138,613	$ 807	352,208	(243,410)	49,476	(20,468)
Common stock, shares outstanding	52,622,000	80,717,000
Net income (loss)	$ (5,398)
Net income (loss)	(5,398)
Other comprehensive loss	(11,808)					(11,808)
Stock based compensation	11,145		11,145
Excess tax benefit over book expense from stock options exercised	94		94
Restricted stock issued		1,302,000
Restricted stock issued	13	$ 13
Restricted stock forfeited or withheld to satisfy tax obligations		(328,000)
Restricted stock forfeited or withheld to satisfy tax obligations	(2,364)	$ (3)		(2,361)
Purchase of treasury stock under stock repurchase plan	$ (28,709)			(28,709)
Exercise of common stock options	641,710	642,000
Exercise of common stock options	$ 2,806	$ 6	2,800
Performance-Based Restricted Stock Units forfeited or withheld to satisfy tax obligations		(98,000)
Performance-Based Restricted Stock Units forfeited or withheld to satisfy tax obligations	(507)	$ 1		506
Performance Based Restricted Stock Units eligible to vest		(246,000)
Performance-Based Restricted Stock Units eligible to vest	(2)	$ 2
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2016	$ 103,883	$ 820	$ 366,247	$ (274,986)	$ 44,078	$ (32,276)
Common stock, shares outstanding	49,591,000	81,989,000