Deferred Acquisition Consideration (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Jul. 31, 2023	Oct. 01, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments	$ 161,323	$ 161,323	$ 222,369
Payments		60,806	74,963
Adjustments to deferred acquisition consideration (2)		10,881	(12,779)
Additions		22,172	26,594
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)		140	(758)
Other	860	27
Ending balance of contingent payments		133,737
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		133,737
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases		22,172	26,594
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements		(60,806)	$ (74,963)
Targeted Victory
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					26.70%
Business Acquisition, Percentage of Voting Interests Acquired, Step One				50.00%	50.00%
Contingent Payment
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments	69,900	69,900
Ending balance of contingent payments		90,900
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		90,900
Fixed payments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments	91,400	91,400
Ending balance of contingent payments		42,800
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		42,800
Common Class A
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Payments	(1,000)	(20,100)
Ending balance of contingent payments		42,600
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		42,600
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements	$ 1,000	$ 20,100