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Insurance Operations - Beginning and Ending Balances and Changes in DPAC (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Deferred Policy Acquisition Costs [Roll Forward] |  |  |  |
DPAC, beginning of period | $ 94,354 | $ 83,284 | $ 91,882 | $ 84,686
Capitalized Costs | 57,465 | 50,694 | 105,973 | 92,215
Amortization of DPAC | (48,292) | (43,448) | (94,328) | (86,371)
DPAC, end of period | $ 103,527 | $ 90,530 | $ 103,527 | $ 90,530

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