Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Shares	Non-Controlling Interest	Common Stock Outstanding
Balance at Beginning of Period at Dec. 31, 2019	$ 182,140	$ 1,148	$ 51,872	$ 160,539	$ (6,330)	$ (29,364)	$ 4,275
Balance at Beginning of Period at Dec. 31, 2019		44,796,252				(330,690)		44,465,562
Stock-based compensation	10,530		9,110			$ 1,420
Stock-based compensation (shares)						12,356		12,356
Repurchase of common shares	(1,238)					$ (1,238)
Repurchase of common shares (shares)						(33,741)		(33,741)
Dividends paid	(11,111)			(11,111)
Interest rate swaps, net of tax	(1,909)				(1,909)
Net income (loss)	(108,338)			(108,421)			83
Balance at End of Period at Mar. 31, 2020	$ 70,074	$ 1,148	60,982	41,007	(8,239)	$ (29,182)	4,358
Balance at End of Period at Mar. 31, 2020		44,796,252				(352,075)		44,444,177
Cash Dividends per Share	$ 0.25
Balance at Beginning of Period at Dec. 31, 2020	$ 75,573	$ 1,148	41,184	50,456	(7,200)	$ (14,075)	4,060
Balance at Beginning of Period at Dec. 31, 2020		44,796,252				(223,451)		44,572,801
Stock-based compensation	4,405		3,075			$ 1,330
Stock-based compensation (shares)						14,449		14,449
Repurchase of common shares	$ (171)					$ (171)
Repurchase of common shares (shares)	4,781					(4,781)		(4,781)
Dividends paid	$ (446)			(446)
New share issuance	59,139	$ 40	59,099
New share issuance (shares)		1,658,012						1,658,012
Interest rate swaps, net of tax	(661)				(661)
Net income (loss)	8,207			8,105			102
Balance at End of Period at Mar. 31, 2021	$ 146,046	$ 1,188	$ 103,358	$ 58,115	$ (7,861)	$ (12,916)	$ 4,162
Balance at End of Period at Mar. 31, 2021		46,454,264				(213,783)		46,240,481
Cash Dividends per Share	$ 0.01