XML 16 R55.htm IDEA: XBRL DOCUMENT v3.2.0.727
Losses and Loss Adjustment Expenses - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]        
Unpaid claims and claim adjustment expenses overall development $ 343 $ (265) $ 550 $ (614)