Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Shares	Additional Paid-in Capital	Treasury Shares	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Interests
Beginning Balance at Dec. 31, 2018	$ 876,764	$ (550)	$ 96	$ 224,396	$ (35,300)	$ (6,387)	$ 647,517	$ (550)	$ 46,442
Increase (Decrease) in Stockholders' Equity
Net income (loss)	15,060						18,307		(3,247)
Other comprehensive loss	(12,734)					(12,734)
Amounts reclassified from Accumulated other comprehensive income (loss)	11,890					11,890
Contributions from noncontrolling interests	4,879			164					4,715
Noncontrolling interests recognized in connection with business combination	179,247			5,112					174,135
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	15,587			(12,121)	27,708
Dividends declared	(22,329)						(22,329)
Shares issued for acquisition	127,841		41	127,800
Restricted share award dividend equivalents	0			8	250		(258)
Ending Balance at Dec. 31, 2019	1,195,655		137	345,359	(7,342)	(7,231)	642,687		222,045
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(14,215)						7,710		(21,925)
Other comprehensive loss	(10,213)					(10,213)
Amounts reclassified from Accumulated other comprehensive income (loss)	5,368					5,368
Contributions from noncontrolling interests	8,576								8,576
Distributions to noncontrolling interests	(10,322)								(10,322)
Noncontrolling interests recognized in connection with business combination	(64)			(459)					395
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	8,939		1	3,814	5,968		(844)
Dividends declared	(23,064)						(23,064)
Restricted share award dividend equivalents	0				408		(408)
Ending Balance at Dec. 31, 2020	1,160,660		138	348,714	(966)	(12,076)	626,081		198,769
Increase (Decrease) in Stockholders' Equity
Net income (loss)	135,866						103,986		31,880
Other comprehensive loss	7,312					7,312
Amounts reclassified from Accumulated other comprehensive income (loss)	5,958					5,958
Contributions from noncontrolling interests	4,655								4,655
Distributions to noncontrolling interests	(25)								(25)
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	16,773		2	19,881	368		(3,478)
Dividends declared	(23,495)						(23,495)
Restricted share award dividend equivalents	0				335		(335)
Ending Balance at Dec. 31, 2021	$ 1,307,704		$ 140	$ 368,595	$ (263)	$ 1,194	$ 702,759		$ 235,279