Variable Interest Entities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Document Period End Date	Dec. 31, 2021
Equity Method Investment Board Seats	3
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 8,100
Contributions from noncontrolling interests	0	$ 400	$ 3,600
Liabilities	511,306	325,895
Assets	$ 1,421,867	988,847
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Percentage of Voting Interest	50.00%
Percentage of Voting Interest	51.00%
Equity Method Investment Board Seats	2
TPG
Variable Interest Entity [Line Items]
Liabilities	$ 146,600	125,500
Assets	$ 162,000	$ 131,900