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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2017	$ 764,597	$ 702	$ 610,345	$ 550,866	$ (319,960)	$ (77,356)
Net loss	(19,428)			(19,428)
Other comprehensive income	5,659					5,659
Stock-based compensation	6,362		6,362
Shares issued and forfeited, net, under stock plans including income tax benefits	9,877		206		9,671
Repurchase of common stock	(31,113)				(31,113)
Repurchase of restricted share awards and restricted share units for tax withholdings	(914)				(914)
Cumulative effect of accounting change, ASC 606	243,981			243,981
Ending balance at Mar. 31, 2018	979,021	702	616,913	775,419	(342,316)	(71,697)
Beginning balance at Dec. 31, 2018	1,048,231	702	632,235	863,768	(355,857)	(92,617)
Net loss	(25,963)			(25,963)
Other comprehensive income	1,321					1,321
Stock-based compensation	6,585		6,585
Shares issued and forfeited, net, under stock plans including income tax benefits	5,665		(1,860)		7,525
Repurchase of common stock	(631)				(631)
Repurchase of restricted share awards and restricted share units for tax withholdings	(2,624)				(2,624)
Ending balance at Mar. 31, 2019	$ 1,032,584	$ 702	$ 636,960	$ 837,805	$ (351,587)	$ (91,296)

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The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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