Consolidated Statement of Stockholders' Equity and Mezzanine Equity - USD ($) $ in Thousands	Stockholders' Equity of the Company Preferred Stock [Member]	Stockholders' Equity of the Company Common Stock [Member]	Stockholders' Equity of the Company Treasury Stock [Member]	Stockholders' Equity of the Company Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss)	Stockholders' Equity of the Company Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Common stock beginning balance, share at Dec. 31, 2018		46,195,000
Beginning balance, value at Dec. 31, 2018		$ 462	$ (610,177)	$ 353,932	$ (124,596)	$ 725,551	$ 7,677	$ 352,849
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)						30,800	3,290	34,090
Dividends to shareholders						(13,864)		(13,864)
Capital contribution from noncontrolling interest							3,362	3,362
Dividends distributed to noncontrolling interest							(2,250)	(2,250)
Foreign currency translation adjustments					6,380			6,380
Derivatives valuation, net of tax					7,513			7,513
Vesting of restricted stock units, share		192,000
Vesting of restricted stock units, value		$ 2	3,173	(6,398)				(3,223)
Equity-based compensation expense				6,534				6,534
Other, net of tax.					17			17
Preferred stock ending balance, share at Jun. 30, 2019	0
Common stock ending balance, share at Jun. 30, 2019		46,387,000
Ending balance, value at Jun. 30, 2019	$ 0	$ 464	(607,004)	354,068	(110,686)	741,728	12,079	390,649
Temporary Equity, Ending Balance at Jun. 30, 2019								0
Preferred stock beginning balance, share at Mar. 31, 2019	0
Common stock beginning balance, share at Mar. 31, 2019		46,297,000
Beginning balance, value at Mar. 31, 2019	$ 0	$ 463	(608,490)	353,639	(119,878)	729,930	9,610	365,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0					11,798	1,816	13,614
Dividends to shareholders	0
Capital contribution from noncontrolling interest	0						2,032	2,032
Dividends distributed to noncontrolling interest	0						(1,350)	(1,350)
Foreign currency translation adjustments	0				4,778		(29)	4,749
Derivatives valuation, net of tax	$ 0				4,452			4,452
Vesting of restricted stock units, share	0	90,000
Vesting of restricted stock units, value	$ 0	$ 1	1,486	(2,937)				(1,450)
Equity-based compensation expense	0			3,366				3,366
Other, net of tax.	$ 0				(38)			(38)
Preferred stock ending balance, share at Jun. 30, 2019	0
Common stock ending balance, share at Jun. 30, 2019		46,387,000
Ending balance, value at Jun. 30, 2019	$ 0	$ 464	(607,004)	354,068	(110,686)	741,728	12,079	390,649
Temporary Equity, Beginning Balance at Mar. 31, 2019								0
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Net Income								0
Temporary equity distributions.								0
Temporary Equity, Ending Balance at Jun. 30, 2019								0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 0					(759)		$ (759)
Preferred stock beginning balance, share at Dec. 31, 2019	0							0
Common stock beginning balance, share at Dec. 31, 2019		46,489,000						46,488,938
Beginning balance, value at Dec. 31, 2019		$ 465	(605,314)	356,409	(106,234)	773,218	13,186	$ 431,730
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 0					52,859	3,880	56,739
Dividends to shareholders	0					(15,843)		(15,843)
Dividends distributed to noncontrolling interest	0						(4,850)	(4,850)
Foreign currency translation adjustments	0				(18,521)		(313)	(18,834)
Derivatives valuation, net of tax	$ 0				(4,019)			(4,019)
Vesting of restricted stock units, share	0	193,000
Vesting of restricted stock units, value	$ 0	$ 2	3,197	(6,417)				(3,218)
Equity-based compensation expense	0			5,976				5,976
Other, net of tax.	$ 0				246			$ 246
Preferred stock ending balance, share at Jun. 30, 2020	0							0
Common stock ending balance, share at Jun. 30, 2020		46,682,000						46,682,482
Ending balance, value at Jun. 30, 2020	$ 0	$ 467	(602,117)	355,968	(128,528)	810,234	11,903	$ 447,927
Temporary Equity, Beginning Balance at Dec. 31, 2019								48,923
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Net Income								1,495
Acquisition of noncontrolling interest								3,849
Temporary equity distributions.								(241)
Temporary Equity, Ending Balance at Jun. 30, 2020								54,026
Common stock beginning balance, share at Mar. 31, 2020		46,597,000
Beginning balance, value at Mar. 31, 2020		$ 466	(603,531)	355,734	(143,208)	778,909	13,036	401,406
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)						31,325	1,664	32,989
Dividends distributed to noncontrolling interest							(3,000)	(3,000)
Foreign currency translation adjustments					10,777		203	10,980
Derivatives valuation, net of tax					3,784			3,784
Vesting of restricted stock units, share		85,000
Vesting of restricted stock units, value		$ 1	1,414	(2,823)				(1,408)
Equity-based compensation expense				3,057				3,057
Other, net of tax.					119			$ 119
Preferred stock ending balance, share at Jun. 30, 2020	0							0
Common stock ending balance, share at Jun. 30, 2020		46,682,000						46,682,482
Ending balance, value at Jun. 30, 2020	$ 0	$ 467	$ (602,117)	$ 355,968	$ (128,528)	$ 810,234	$ 11,903	$ 447,927
Temporary Equity, Beginning Balance at Mar. 31, 2020								53,367
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Net Income								560
Acquisition of noncontrolling interest								99
Temporary Equity, Ending Balance at Jun. 30, 2020								$ 54,026