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Insurance Operations - Beginning and Ending Balances and Changes in DPAC, Net of DRCC (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Policy Acquisition Costs [Roll Forward]
DPAC, beginning of year	$ 108,822	$ 110,614	$ 91,882
Capitalized Costs	212,067	222,329	217,886
Amortization of DPAC	(217,235)	(224,121)	(199,154)
DPAC, end of year	$ 103,654	$ 108,822	$ 110,614

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- Definition

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

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