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Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Total $ 23,077 $ 24,050
Surplus Note [Member]    
Debt Instrument [Line Items]    
Notes payable 15,441 15,809
Term Loan [Member]    
Debt Instrument [Line Items]    
Term loan 6,946 6,851
Promissory Note [Member]    
Debt Instrument [Line Items]    
Notes payable $ 690 $ 1,390