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Reinsurance - Schedule of Amounts Related to QSR Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Ceded Credit Risk [Line Items]
Ceded premiums earned	$ (34,456)	$ (33,940)	$ (99,411)	$ (99,466)
Reinsurance Policy, Type [Axis]: 2016, 2018 and 2021 QSR Transaction
Ceded Credit Risk [Line Items]
Reinsurance ceded claims and claims (benefits) expenses, termination fee			300
Third-party Reinsurers
Ceded Credit Risk [Line Items]
Ceded risk-in-force	12,699,082	12,968,039	12,699,082	12,968,039
Ceded premiums earned	(39,847)	(41,761)	(121,085)	(124,585)
Ceded claims and claim expenses	4,123	2,449	7,899	2,970
Ceding commission earned	10,246	10,152	29,683	30,666
Profit commission	$ 19,083	$ 21,883	$ 62,439	$ 69,641

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