• Filing Date: 2015-03-10
  • Form Type: 10-K
  • Description: Annual report
v2.4.1.9
Investments - Summary of Proceeds Received and Gross Realized Gains and Losses from Sales of Available for Sale Securities (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Fixed-Maturity Securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Proceeds $ 98,365us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
$ 1,749us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
$ 8,991us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
Gross Realized Gains 4,096us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
92us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
421us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
Gross Realized Losses (98)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
(4)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
(6)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_FixedMaturitiesMember
Equity Securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Proceeds 16,810us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
2,809us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
1,735us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
Gross Realized Gains 1,372us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
155us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
91us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
Gross Realized Losses $ (635)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
$ (163)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember
$ (230)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
/ us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentAxis
= us-gaap_EquitySecuritiesMember