CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Series A convertible preferred stock Accumulated Deficit	Series A convertible preferred stock	Series A convertible preferred stock	Common Stock Member	Additional Paid-In Capital Member	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total
Balance (in Value) at Dec. 31, 2017		$ 65.0			$ 277.9	$ 7.3	$ 0.9	$ 351.1
Balance (in Shares) at Dec. 31, 2017		650,000		48,712,288
Exercise of stock options (in Value)					0.1			0.1
Exercise of stock options (in shares)				5,000
Exercised of warrants (in shares)				2
Vesting of restricted stock units (in Value)					(0.4)			(0.4)
Vesting of restricted stock units (in Shares)				84,516
Series A convertible preferred stock dividend			$ (4.9)
Stock-based compensation expense					3.6			3.6
Issuance of common stock					104.5			104.5
Issuance of common stock (in shares)				10,653,368
Issuance of earnout shares					48.2	(48.2)		48.2
Issuance of earnout shares (in shares)				5,000,000
Foreign currency translation adjustments							(1.8)	(1.8)
Net income (loss)						(5.2)		(5.2)
Balance (in Value) at Dec. 31, 2018		$ 65.0			433.9	(51.0)	(0.9)	447.0
Balance (in Shares) at Dec. 31, 2018		650,000		64,455,174
Vesting of restricted stock units (in Value)					(0.2)			(0.2)
Vesting of restricted stock units (in Shares)				133,901
Series A convertible preferred stock dividend	$ (5.0)	$ (5.0)
Stock-based compensation expense					3.8			3.8
Foreign currency translation adjustments							0.5	0.5
Net income (loss)						(307.4)		(307.4)
Balance (in Value) at Dec. 31, 2019		$ 65.0			437.5	(363.4)	(0.4)	138.7
Balance (in Shares) at Dec. 31, 2019		650,000		64,589,075
Exercised of warrants (in shares)				1
Vesting of restricted stock units (in Value)					(0.1)			(0.1)
Vesting of restricted stock units (in Shares)				434,098
Series A convertible preferred stock dividend	$ (4.9)	$ (4.9)
Stock-based compensation expense					4.8			4.8
Foreign currency translation adjustments							$ 0.4	0.4
Net income (loss)						6.2		6.2
Balance (in Value) at Dec. 31, 2020		$ 65.0			$ 442.2	$ (362.1)		$ 145.1
Balance (in Shares) at Dec. 31, 2020		650,000		65,023,174