Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		229,038,000
Beginning balance at Dec. 31, 2020	$ 2,063,873	$ 23	$ 3,852,291	$ (37,207)	$ (1,751,234)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,447				4,447
Other comprehensive (loss) income	7,211			7,211
Stock-based compensation and issuance of Common Stock from vesting (in shares)		229,000
Stock-based compensation and issuance of Common Stock from vesting	4,951		4,951
Repurchase and cancellation of Common Stock and warrants (in shares)		(2,793,000)
Repurchase and cancellation of Common Stock and warrants	(76,788)		(76,788)
Issuance of Common Stock from the exercise of options and warrants (in shares)		341,000
Issuance of Common Stock from the exercise of options and warrants	5,414		5,414
Withholding taxes on net share settlement of stock-based compensation	(3,219)		(3,219)
Ending balance (in shares) at Mar. 31, 2021		226,815,000
Ending balance at Mar. 31, 2021	$ 2,005,889	$ 23	3,782,649	(29,996)	(1,746,787)
Beginning balance (in shares) at Dec. 31, 2021	223,939,527	223,940,000
Beginning balance at Dec. 31, 2021	$ 1,996,763	$ 22	3,616,902	(29,071)	(1,591,090)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	51,171				51,171
Other comprehensive (loss) income	(1,753)			(1,753)
Stock-based compensation and issuance of Common Stock from vesting (in shares)		498,000
Stock-based compensation and issuance of Common Stock from vesting	6,395		6,395
Repurchase and cancellation of Common Stock and warrants (in shares)		(2,064,000)
Repurchase and cancellation of Common Stock and warrants	$ (77,409)		(77,409)
Issuance of Common Stock from the exercise of options and warrants (in shares)	1,298,799	800,000
Issuance of Common Stock from the exercise of options and warrants	$ 3,313		3,313
Withholding taxes on net share settlement of stock-based compensation	$ (12,295)		(12,295)
Ending balance (in shares) at Mar. 31, 2022	223,174,389	223,174,000
Ending balance at Mar. 31, 2022	$ 1,966,185	$ 22	$ 3,536,906	$ (30,824)	$ (1,539,919)