Consolidated Statement of Stockholders' Equity and Mezzanine Equity - USD ($) $ in Thousands	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, 2016	46,114,000
Beginning balance, value at Dec. 31, 2016	$ 462	$ (603,262)	$ 348,739	$ (126,964)	$ 735,939	$ 6,981	$ 361,895
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					7,256	3,556	10,812
Dividends to shareholders					(21,531)		(21,531)
Dividends distributed to noncontrolling interest						(3,645)	(3,645)
Foreign currency translation adjustments				7,908		377	8,285
Derivatives valuation, net of tax				16,647			16,647
Vesting of restricted stock units, share	298,000
Vesting of restricted stock units, value	$ 3	4,913	(10,313)				(5,397)
Exercise of stock options, share	60,000
Exercise of stock options, value		994	1,156				2,150
Equity-based compensation expense			12,143			(291)	11,852
Purchases of common stock, share	(610,000)
Purchases of common stock, value	$ (6)	(18,322)					(18,328)
Other, net of tax.				105			105
Common stock ending balance, share at Dec. 31, 2017	45,862,000
Ending balance, value at Dec. 31, 2017	$ 459	(615,677)	351,725	(102,304)	721,664	6,978	362,845
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					35,817	3,938	39,755
Dividends to shareholders					(25,346)		(25,346)
Dividends distributed to noncontrolling interest						(2,925)	(2,925)
Foreign currency translation adjustments				(30,068)		(314)	(30,382)
Derivatives valuation, net of tax				7,468			7,468
Vesting of restricted stock units, share	318,000
Vesting of restricted stock units, value	$ 3	5,252	(9,898)				(4,643)
Exercise of stock options, share	15,000
Exercise of stock options, value		248	(40)				208
Equity-based compensation expense			12,145				12,145
Other, net of tax.				308			$ 308
Preferred stock ending balance, share at Dec. 31, 2018							0
Common stock ending balance, share at Dec. 31, 2018	46,195,000						46,194,717
Ending 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]
Cumulative Effect of New Accounting Principle in Period of Adoption					(6,584)		(6,584)
Net income (loss)					77,164	6,969	84,133
Dividends to shareholders					(28,739)		(28,739)
Capital contribution from noncontrolling interest						3,362	3,362
Dividends distributed to noncontrolling interest						(4,950)	(4,950)
Foreign currency translation adjustments				6,688		128	6,816
Derivatives valuation, net of tax				12,460			12,460
Vesting of restricted stock units, share	294,000
Vesting of restricted stock units, value	$ 3	4,863	(10,337)				(5,471)
Equity-based compensation expense			12,814				12,814
Other, net of tax.				(786)			$ (786)
Preferred stock ending balance, share at Dec. 31, 2019							0
Common stock ending balance, share at Dec. 31, 2019	46,489,000						46,488,938
Ending balance, value at Dec. 31, 2019	$ 465	$ (605,314)	$ 356,409	$ (106,234)	773,218	$ 13,186	$ 431,730
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary Equity, Net Income							601
Acquisition of noncontrolling interest							48,322
Temporary Equity, Ending Balance at Dec. 31, 2019							48,923
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ (758)		$ (758)