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Insurance Operations - Beginning and Ending Balances and Changes in DPAC, Net of DRCC (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Deferred Policy Acquisition Costs [Roll Forward] |  |  |  |
DPAC, beginning of period | $ 110,983 | $ 115,971 | $ 108,822 | $ 110,614
Capitalized Costs | 55,552 | 55,054 | 165,983 | 170,996
Amortization of DPAC | (54,674) | (57,046) | (162,944) | (167,631)
DPAC, end of period | $ 111,861 | $ 113,979 | $ 111,861 | $ 113,979

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