Deferred Acquisition Consideration (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 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		97,447	74,963
Adjustments to deferred acquisition consideration (2)		14,303	(12,779)
Additions		22,172	26,594
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)		680	(758)
Other	860	27
Ending balance of contingent payments		101,058	161,323
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		101,058	161,323
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		(97,447)	(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					13.30%
Business Acquisition, Percentage of Voting Interests Acquired, Step One & Two				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		57,500	69,900
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		57,500	69,900
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		43,600	91,400
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		43,600	91,400
Common Class A
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments	51,600	51,600
Payments	(1,000)	(32,800)
Ending balance of contingent payments		29,300	51,600
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		29,300	$ 51,600
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements	$ 1,000	$ 32,800