Debt - Schedule of Interest Expense (Details) - Senior Notes - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
2027 Notes
Debt Instrument [Line Items]
Contractual interest coupon	$ 8.3	$ 8.3	$ 25.0	$ 25.0
Amortization of debt issuance costs	0.3	0.3	0.9	0.9
Total	$ 8.6	$ 8.6	$ 25.9	25.9
2021 Notes
Debt Instrument [Line Items]
Contractual interest coupon				0.8
Amortization of debt discount				0.5
Amortization of debt issuance costs				0.1
Total				$ 1.4