Variable Interest Entities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Document Period End Date	Dec. 31, 2022
Equity Method Investment Board Seats	3
Contributions from noncontrolling interests	$ 0	$ 0	$ 400
Liabilities	543,621	511,306
Assets	$ 1,655,675	1,421,867
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	$ 164,100	146,600
Assets	190,100	$ 162,000
EJB River Holdings, LLC [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 10,600