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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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Insurance [Abstract]
DPAC, beginning of period	$ 66,524	$ 61,158	$ 64,912	$ 60,019
Capitalized Costs	39,898	36,825	73,654	67,411
Amortization of DPAC	(32,831)	(30,793)	(64,975)	(60,240)
DPAC, end of period	$ 73,591	$ 67,190	$ 73,591	$ 67,190

X

- Definition

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

+ References

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- Definition

Net amount of deferred policy acquisition costs capitalized on contracts remaining in force as of the balance sheet date.

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Total amount of policy acquisition costs capitalized during the income statement period.

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