Condensed Consolidated Statement of Changes in Stockholders’ Equity - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Common Stock Held in Treasury	Accumulated Other Comprehensive Income/(Loss)	Total
Balance at Dec. 31, 2017	$ 526	$ 250,216	$ 486,957	$ (353,067)	$ (21,397)	$ 363,235
Increase (Decrease) in Stockholders' Equity
Net income			4,377			4,377
Other comprehensive income					1,069	1,069
Issuance of common stock in connection with restricted stock unit awards (1,022,915 shares)	1	(16,506)		16,671		166
Shares withheld for net settlements of share-based awards (407,358 shares)				(8,321)		(8,321)
Purchase of common stock for treasury (180,333 shares)				(3,571)		(3,571)
Dividend declared on common stock		3	(2,295)	25		(2,267)
Share-based compensation		8,295				8,295
Cumulative effect of accounting change			(46)			(46)
Balance at Mar. 31, 2018	$ 527	$ 242,008	$ 488,993	$ (348,263)	$ (20,328)	$ 362,937