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Insurance Operations - Beginning and Ending Balances and Changes in DPAC, Net of DRCC (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Insurance [Abstract]      
DPAC, beginning of year $ 54,431 $ 57,482 $ 50,127
DPAC, beginning of year, Adjusted   50,200  
Capitalized Costs 109,981 107,180 114,358
Amortization of DPAC (110,313) (102,949) (107,003)
DPAC, end of year 54,099 54,431 57,482
DRCC, beginning of year 37,149 44,486 40,682
DRCC, beginning of year, Adjusted   38,845  
Ceding Commissions Written 89,679 85,063 89,330
Earned Ceding Commissions (88,628) (86,759) (85,526)
DRCC, end of year 38,200 37,149 44,486
DPAC (DRCC), net, beginning of year 17,282 12,996 9,445
DPAC (DRCC), net, beginning of year, Adjusted   11,355  
Capitalized Costs, net 20,302 22,117 25,028
Amortization of DPAC (DRCC), net (21,685) (16,190) (21,477)
DPAC (DRCC), net, end of year $ 15,899 $ 17,282 $ 12,996