XML 29 R35.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value $ 374,561us-gaap_AvailableForSaleSecurities $ 343,018us-gaap_AvailableForSaleSecurities
Equity Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 28us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember		 28us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember
Other Investments [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 11,729us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember		 11,748us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember
Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 374,561us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 343,018us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 362,804us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 331,242us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Measurements, Recurring [Member] | Other Investments [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 11,729us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 11,748us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Common Stock [Member] | Equity Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 28us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CommonStockMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember		 28us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CommonStockMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember
Fair Value, Measurements, Recurring [Member] | States and Political Subdivisions [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 173,722us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 157,374us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Measurements, Recurring [Member] | U.S. Agency-Based Mortgage-Backed Securities [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 8,935us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 8,498us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 180,147us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CorporateDebtSecuritiesMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 165,370us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CorporateDebtSecuritiesMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 28us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 28us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Common Stock [Member] | Equity Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 28us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CommonStockMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember		 28us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CommonStockMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 362,804us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 331,242us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 362,804us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 331,242us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | States and Political Subdivisions [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 173,722us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 157,374us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Agency-Based Mortgage-Backed Securities [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 8,935us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 8,498us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Debt Securities [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 180,147us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CorporateDebtSecuritiesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember		 165,370us-gaap_AvailableForSaleSecurities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_CorporateDebtSecuritiesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_DebtSecuritiesMember
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value 11,729us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 11,748us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Other Investments [Member]    
Fair Value Measurements Disclosure [Line Items]    
Securities available for sale/Available-for-sale, Fair value $ 11,729us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember		 $ 11,748us-gaap_AvailableForSaleSecurities
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherInvestmentsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember