Deferred Acquisition Consideration (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments	$ 222,369	$ 17,847	$ 17,847
Payments	59,538		12,431
Redemption value adjustments	16,014		18,721
Additions	19,348		198,937
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)	(696)		0
Other	(983)		(705)
Ending balance of contingent payments	196,514		222,369
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases	19,348		$ 198,937
MDC
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Additions		61
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases		61
Concentric, Targeted Victory and Instrument
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Additions		136
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases		$ 136
BNG
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Additions	17
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases	$ 17