Balance Sheet Accounts - Schedule of Estimated Fair Value and Principal Amount of Outstanding Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Fair Value	$ 499.7	$ 541.9
Principal Amount	421.5	428.1
Term loan
Debt Instrument [Line Items]
Fair Value	269.8	275.8
Principal Amount	275.6	282.2
2 1/4% Notes
Debt Instrument [Line Items]
Fair Value	229.9	266.1
Principal Amount	$ 145.9	$ 145.9
Convertible Debt | 2 1/4% Notes
Debt Instrument [Line Items]
Debt instrument interest rate stated percentage	2.25%