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, 2021	$ 805,770	$ 144,883	$ (846,622)	$ 215,528	$ 1,794,510	$ (560,139)	$ 57,610
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(38,680)				(39,839)		1,159
Total other comprehensive income	12,008					12,490	(482)
Vesting of restricted stock units and other stock grants, net	(1,632)	378	(1,632)	(378)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,629			3,629
Ending balance at Mar. 31, 2022	781,095	145,261	(848,254)	218,779	1,754,671	(547,649)	58,287
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				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