Insurance Operations - Beginning and Ending Balances and Changes in DPAC, Net of DRCC (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Deferred Policy Acquisition Costs [Roll Forward]
DPAC, beginning of period	$ 107,047	$ 110,983	$ 103,654	$ 108,822
Capitalized Costs	60,470	55,552	167,357	165,983
Amortization of DPAC	(52,927)	(54,674)	(156,421)	(162,944)
DPAC, end of period	$ 114,590	$ 111,861	$ 114,590	$ 111,861

Amount of amortization expense (reversal of expense) for deferred policy acquisition costs.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration