Summary of Significant Accounting Policies - Schedule of Estimated Fair Value and Principal Amount of Outstanding Debt (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 14, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 541,900,000	$ 916,000,000.0
Principal Amount	428,100,000	608,500,000
Term loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	275,800,000	306,500,000
Principal Amount	282,200,000	308,500,000
2.25% Convertible Senior Notes ("2 1/4% Notes")
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	266,100,000	609,500,000
Principal Amount	145,900,000	300,000,000.0
2 1/4% Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal Amount	$ 145,900,000	$ 300,000,000.0
Debt instrument interest rate stated percentage	2.25%	2.25%	2.25%
2 1/4% Notes | Convertible senior notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal Amount			$ 300,000,000
Debt instrument interest rate stated percentage	2.25%