Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-in Capital	Treasury Shares	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interests
Beginning Balance at Dec. 31, 2021	$ 1,307,704	$ 140	$ 368,595	$ (263)	$ 1,194	$ 702,759	$ 235,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	151,883					122,056	29,827
Other comprehensive income	12,919				12,919
Amounts reclassified from Accumulated other comprehensive income	1,737				1,737
Contributions from noncontrolling interests	2,450						2,450
Distributions to noncontrolling interests	(34,930)						(34,930)
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	10,719	2	13,079	(2,362)
Purchase of treasury shares	(7,701)			(7,701)
Dividends declared per common share	(18,240)					(18,240)
Restricted share award dividend equivalents	0		54	335		(389)
Ending Balance at Sep. 30, 2022	1,426,541	142	381,728	(9,991)	15,850	806,186	232,626
Beginning Balance at Jun. 30, 2022	1,417,206	142	378,740	(2,313)	15,090	775,495	250,052
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	44,272					36,748	7,524
Other comprehensive income	1,198				1,198
Amounts reclassified from Accumulated other comprehensive income	(438)				(438)
Distributions to noncontrolling interests	(24,950)						(24,950)
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	3,011		2,988	23
Purchase of treasury shares	(7,701)			(7,701)
Dividends declared per common share	(6,057)					(6,057)
Restricted share award dividend equivalents	0
Ending Balance at Sep. 30, 2022	1,426,541	142	381,728	(9,991)	15,850	806,186	232,626
Beginning Balance at Dec. 31, 2022	1,429,769	142	385,248	(15,043)	20,484	807,770	231,168
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	54,092					50,004	4,088
Other comprehensive income	16,133				16,133
Amounts reclassified from Accumulated other comprehensive income	(8,038)				(8,038)
Distributions to noncontrolling interests	(44,304)						(44,304)
Deconsolidation of joint venture	17,399						17,399
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	4,213		(2,146)	6,359
Purchase of treasury shares	(1,747)			(1,747)
Dividends declared per common share	(18,728)					(18,728)
Restricted share award dividend equivalents	297		622	165		(490)
Ending Balance at Sep. 30, 2023	1,449,086	142	383,724	(10,266)	28,579	838,556	208,351
Beginning Balance at Jun. 30, 2023	1,438,482	142	380,376	(10,270)	25,482	835,256	207,496
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	30,523					9,708	20,815
Other comprehensive income	6,060				6,060
Amounts reclassified from Accumulated other comprehensive income	(2,963)				(2,963)
Distributions to noncontrolling interests	(19,960)						(19,960)
Stock awards, stock option exercises and other shares issued to employees and directors, net of income tax	3,352		3,348	4
Dividends declared per common share	(6,243)					(6,243)
Restricted share award dividend equivalents	(165)					(165)
Ending Balance at Sep. 30, 2023	$ 1,449,086	$ 142	$ 383,724	$ (10,266)	$ 28,579	$ 838,556	$ 208,351