CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Treasury stock, at cost	Starboard Value LP Common Stock	CVI Investments, Inc.	CVI Investments, Inc. Common Stock	CVI Investments, Inc. Additional Paid-In Capital
Beginning balance (in shares) at Dec. 31, 2017			57,289,047
Beginning balance at Dec. 31, 2017	$ 656,492	$ (736)	$ 60	$ 1,407,717	$ (6,224)	$ (609,091)	$ (736)	$ (135,970)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(159,268)					(159,268)
Foreign currency translation adjustment	(4,397)				(4,397)
Subscription Receivable	10,254			10,254
Common Stock warrants issued	$ 5,545			5,545
Exercise of Common Stock options, net (in shares)	347,752		222,229
Exercise of Common Stock options, net	$ 2,855			2,855
Shares issued in connection with settlement of litigation (in shares)			4,024,115
Shares issued in connection with settlement of litigation	90,768		$ 4	90,764
Repurchase of Common Stock in exchange for senior secured convertible notes (in shares)			(4,000,000)
Repurchase of Common Stock in exchange for senior secured convertible notes	(94,021)		$ (7)					(94,014)
Restricted stock units vested (in shares)			2,077,253
Restricted stock units vested	15,818		$ 2	15,816
Payments for taxes related to net share settlement of equity awards (in shares)			(222,814)
Payments for taxes related to net share settlement of equity awards	(5,263)			(5,263)
Stock-based compensation	33,520			33,520
Ending balance (in shares) at Dec. 31, 2018			59,389,830
Ending balance at Dec. 31, 2018	$ 551,567	$ (46)	$ 59	1,561,208	(10,621)	(769,095)	$ (46)	(229,984)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Net loss	$ (338,996)					(338,996)
Foreign currency translation adjustment	(1,712)				(1,712)
Issuance of Common Stock (in shares)			2,728,513
Issuance of Common Stock - CVI	$ 8,162		$ 3	8,159
Common Stock warrants exercised (in shares)									323,448		2,728,513
Common Stock warrants exercised										$ 5,485	$ 3	$ 5,482
Exercise of Common Stock options, net (in shares)	68,259		68,259
Exercise of Common Stock options, net	$ 1,191			1,191
Shares issued in connection with settlement of litigation	0
Interest paid in Common Stock (in shares)			4,057,129
Interest paid in Common Stock	17,374		$ 4	17,370
Restricted stock units vested (in shares)			854,998
Restricted stock units vested	4,611		$ 1	4,610
Payments for taxes related to net share settlement of equity awards (in shares)			(85,560)
Payments for taxes related to net share settlement of equity awards	(1,267)			(1,267)
Stock-based compensation	12,605			12,605
Ending balance (in shares) at Dec. 31, 2019			70,065,130
Ending balance at Dec. 31, 2019	258,974		$ 70	1,609,358	(12,333)	(1,108,137)		(229,984)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(47,918)					(47,918)
Foreign currency translation adjustment	$ 5,303				5,303
Exercise of Common Stock options, net (in shares)	75,000		75,000
Exercise of Common Stock options, net	$ 143			143
Shares issued in connection with settlement of litigation	0
Interest paid in Common Stock (in shares)			1,474,201
Interest paid in Common Stock	3,060		$ 2	3,058
Restricted stock units vested (in shares)			1,363,152
Restricted stock units vested	3,065		$ 1	3,064
Payments for taxes related to net share settlement of equity awards (in shares)			(38,937)
Payments for taxes related to net share settlement of equity awards	(117)			(117)
Stock-based compensation	6,480			6,480
Ending balance (in shares) at Dec. 31, 2020			72,938,546
Ending balance at Dec. 31, 2020	$ 228,990		$ 73	$ 1,621,986	$ (7,030)	$ (1,156,055)		$ (229,984)