Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2017
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201409Member
Change in fair value of warrant liabilities	$ 143.7
Proceeds from the exercise of warrants	156.5
Share Capital
Common stock shares exchange ratio (in shares)		118,261,955
Previously Reported
Change in fair value of warrant liabilities	0.0
Previously Reported | Share Capital
Common stock shares exchange ratio (in shares)		1,000,000.0
Revision of Prior Period, Error Correction, Adjustment
Change in fair value of warrant liabilities	143.7
Proceeds from the exercise of warrants	$ 156.5