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Insurance Operations - Change in Liability for Unpaid Losses and LAE (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Insurance [Abstract]      
Balance at beginning of year $ 134,353 $ 159,222 $ 193,241
Less: Reinsurance recoverable (47,350) (68,584) (81,415)
Net balance at beginning of period 87,003 90,638 111,826
Incurred (recovered) related to current year 188,040 124,011 111,560
Incurred (recovered) related to prior years (301) (736) (2,945)
Total incurred 187,739 123,275 108,615
Paid related to Current year 123,952 73,981 62,529
Paid related to Prior years 65,490 52,929 67,274
Total paid 189,442 126,910 129,803
Net balance at end of period 85,300 87,003 90,638
Plus: Reinsurance recoverable 13,540 47,350 68,584
Balance at end of year $ 98,840 $ 134,353 $ 159,222