Condensed Consolidated Statement of Changes in Stockholders’ Equity - 6 months ended Jun. 30, 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 (loss) income			1,342			1,342
Other comprehensive loss					(5,626)	(5,626)
Issuance of common stock in connection with restricted stock unit awards (1,048,639 shares)	1	(17,005)		17,214		210
Issuance of common stock for the employee stock purchase plan (30,769 shares)		523				523
Shares withheld for net settlements of share-based awards (409,431 shares)				(8,366)		(8,366)
Purchase of common stock for treasury (282,980 shares)				(5,736)		(5,736)
Dividends declared on common stock		9	(4,614)	49		(4,556)
Share-based compensation		14,154				14,154
Cumulative effect of accounting change			(46)			(46)
Balance at Jun. 30, 2018	$ 527	$ 247,897	$ 483,639	$ (349,906)	$ (27,023)	$ 355,134