XML 50 R72.htm IDEA: XBRL DOCUMENT v3.3.0.814
Fair Value Disclosures of Financial Assets and Liabilities - Balances of Assets Measured at Fair Value (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value $ 756,731 $ 740,124
Total assets measured at fair value on a recurring basis 756,731 740,124
Loans held-for-sale 33,979 28,508
Impaired loans (collateral dependent) 37,056 41,334
Total assets measured at fair value on a nonrecurring basis 74,334 75,576
U.S. Government and Agencies [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 31,107 29,960
Other Real Estate Owned [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Assets measured at fair value on a nonrecurring basis 3,299 5,734
Federal National Mortgage Association (FNMA) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 299,772 292,553
Federal National Mortgage Association (FNMA) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 299,772 292,553
Federal Home Loan Mortgage Corporation (FHLMC) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 110,474 146,882
Federal Home Loan Mortgage Corporation (FHLMC) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 110,474 146,882
Government National Mortgage Association (GNMA) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 61,711 77,797
Government National Mortgage Association (GNMA) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 61,711 77,797
Collateralized Mortgage Obligation (CMO) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 253,667 192,932
Collateralized Mortgage Obligation (CMO) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 253,667 192,932
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Total assets measured at fair value on a recurring basis 756,731 740,124
Loans held-for-sale 33,979 28,508
Total assets measured at fair value on a nonrecurring basis 33,979 28,508
Significant Other Observable Inputs (Level 2) [Member] | U.S. Government and Agencies [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 31,107 29,960
Significant Other Observable Inputs (Level 2) [Member] | Federal National Mortgage Association (FNMA) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 299,772 292,553
Significant Other Observable Inputs (Level 2) [Member] | Federal Home Loan Mortgage Corporation (FHLMC) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 110,474 146,882
Significant Other Observable Inputs (Level 2) [Member] | Government National Mortgage Association (GNMA) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 61,711 77,797
Significant Other Observable Inputs (Level 2) [Member] | Collateralized Mortgage Obligation (CMO) [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value 253,667 192,932
Significant Unobservable Inputs (Level 3) [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Impaired loans (collateral dependent) 37,056 41,334
Total assets measured at fair value on a nonrecurring basis 40,355 47,068
Significant Unobservable Inputs (Level 3) [Member] | Other Real Estate Owned [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Assets measured at fair value on a nonrecurring basis $ 3,299 $ 5,734