Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amounts owed to employees participating in the deferred compensation plan	$ 1.7		$ 2.4
MENU Acquisition
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration liability	9.8	$ 14.2
2024 Notes | Fair Value, Inputs, Level 2 | Convertible Debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of notes	17.4		27.2
2026 Notes | Fair Value, Inputs, Level 2 | Convertible Debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of notes	112.8		175.5
2027 Notes | Fair Value, Inputs, Level 2 | Convertible Debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of notes	$ 191.0		$ 267.5