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Insurance Operations - Beginning and Ending Balances and Changes in DPAC (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Deferred Policy Acquisition Costs [Roll Forward] |  |  |  |
DPAC, beginning of period | $ 103,527 | $ 90,530 | $ 91,882 | $ 84,686
Capitalized Costs | 58,727 | 48,783 | 164,700 | 140,998
Amortization of DPAC | (50,959) | (44,493) | (145,287) | (130,864)
DPAC, end of period | $ 111,295 | $ 94,820 | $ 111,295 | $ 94,820

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