Investments - Schedule of Commercial Loan Participations, Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning balance	$ 7,644	$ 3,672
Provision (reversal) for credit losses	(248)	874
Reduction in allowance due to dispositions	(665)	0
Allowance for credit losses ending balance	$ 6,731	$ 4,546

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant