CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock Issued	Common Stock Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance at Dec. 31, 2022	$ 623,042	$ 145,448	$ (848,570)	$ 225,759	$ 1,614,441	$ (567,636)	$ 53,600
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(8,590)				(9,525)		935
Total other comprehensive income	7,152					6,794	358
Sale of subsidiary shares to noncontrolling interest	0			398			(398)
Vesting of restricted stock units and other stock grants, net	(1,108)	395	(1,108)	(395)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,456			3,456
Ending balance at Mar. 31, 2023	623,952	145,843	(849,678)	229,218	1,604,916	(560,842)	54,495
Beginning balance at Dec. 31, 2023	575,408	146,105	(849,996)	238,416	1,528,320	(539,694)	52,257
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(16,846)				(17,962)		1,116
Noncontrolling interests	(8,243)						(8,243)
Total other comprehensive income	(7,659)					(6,838)	(821)
Contributions from noncontrolling interests	874						874
Vesting of restricted stock units and other stock grants, net	(1,270)	443	(1,270)	(443)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,860			3,860
Ending balance at Mar. 31, 2024	$ 546,124	$ 146,548	$ (851,266)	$ 241,833	$ 1,510,358	$ (546,532)	$ 45,183