Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition -related future consideration liabilities	$ 0.4
Measurement Input, Revenue Terminal Growth Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		2.50%
Measurement Input, Projected Pre-Tax Operating Profits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		28.00%
Measurement Input, Discount Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		17.60%
Minimum | Measurement Input, Projected Revenue Growth Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		0.00%
Minimum | Measurement Input, Projected Pre-Tax Operating Profits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		(20.00%)
Maximum | Measurement Input, Projected Revenue Growth Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		13.00%
Maximum | Measurement Input, Projected Pre-Tax Operating Profits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		28.00%
Arithmetic Average | Measurement Input, Projected Revenue Growth Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		9.00%
Arithmetic Average | Measurement Input, Projected Pre-Tax Operating Profits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets, measurement input		12.00%
Valuation, Income Approach
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Intangible assets fair value		$ 91.3
Unsecured Senior Notes | Senior Notes
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Issuance costs, net	1.9
Money market
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	465.9		$ 333.3
Mutual Funds | NAV
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other financial assets	$ 19.4		$ 19.9