CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Income	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2016	$ 40	$ 87,481	$ 178,550	$ (12,910)	$ 253,161
Balance (in shares) at Dec. 31, 2016	40,097
Change in Stockholders' Equity
Net income (loss)			(22,399)		(22,399)
Foreign currency translation adjustment, net of tax				4,029	4,029
Restricted stock awards		3,466			3,466
Restricted stock awards, Shares	(11)
Tax payments for stock issuances		(640)			(640)
Pension adjustment, net of tax				313	313
Balance at Dec. 31, 2017	$ 40	90,307	156,151	(8,568)	237,930
Balance (in shares) at Dec. 31, 2017	40,086
Change in Stockholders' Equity
Cumulative impact of change in accounting principles, net of tax			(12,381)		(12,381)
Net income (loss)			3,846		3,846
Foreign currency translation adjustment, net of tax				(5,516)	(5,516)
Restricted stock awards		3,973			3,973
Restricted stock awards, Shares	139
Tax payments for stock issuances		(970)			(970)
Pension adjustment, net of tax				797	797
Balance at Dec. 31, 2018	$ 40	93,310	172,378	(13,287)	252,441
Balance (in shares) at Dec. 31, 2018	40,225
Change in Stockholders' Equity
Net income (loss)			8,789		8,789
Foreign currency translation adjustment, net of tax				1,543	1,543
Restricted stock awards		3,368			3,368
Tax payments for stock issuances		(569)			(569)
Tax payments for stock issuances, Shares	(18)
Pension adjustment, net of tax				(1,551)	(1,551)
Balance at Dec. 31, 2019	$ 40	$ 96,109	$ 181,167	$ (13,295)	$ 264,021
Balance (in shares) at Dec. 31, 2019	40,207