CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Shares	Capital in Excess of Par Value	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		185,468
Beginning balance at Dec. 31, 2021	$ 679,508	$ 19	$ 3,516,641	$ (4,157)	$ (2,832,995)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under equity compensation plans (in shares)		806
Shares issued under equity compensation plans	188		188
Stock-based compensation	20,961		20,961
Comprehensive income (loss)	(92,768)			(2,375)	(90,393)
Ending balance (in shares) at Mar. 31, 2022		186,274
Ending balance at Mar. 31, 2022	$ 607,889	$ 19	3,537,790	(6,532)	(2,923,388)
Beginning balance (in shares) at Dec. 31, 2022	188,560	188,560
Beginning balance at Dec. 31, 2022	$ 366,638	$ 19	3,574,719	(6,907)	(3,201,193)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under equity compensation plans (in shares)		675
Shares issued under equity compensation plans	0		0
Stock-based compensation	10,019		10,019
Comprehensive income (loss)	$ (135,792)			1,226	(137,018)
Ending balance (in shares) at Mar. 31, 2023	189,235	189,235
Ending balance at Mar. 31, 2023	$ 240,865	$ 19	$ 3,584,738	$ (5,681)	$ (3,338,211)