XML 134 R118.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Value Measurement - Schedule of Fair Value of Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities $ 7,844 $ 7,071
Total securities - available-for-sale 1,267,478 1,241,176
Other real estate owned and repossessed assets 5,297 8,346
Loans held for sale 20,320 17,315
Other assets-interest rate derivatives agreements 7,351 5,596
Total assets recurring fair value measurements 1,302,993 1,253,843
Other liabilities - interest rate derivatives agreements 7,345 5,199
Total liabilities recurring fair value measurements 7,345 5,199
Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 7,844 7,071
Total securities - available-for-sale 1,267,478 1,241,176
Nonrecurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 1,717 3,405
Other real estate owned and repossessed assets 5,297 8,346
Loans held for sale   17,315
Total nonrecurring fair value measurements 7,014 29,066
U.S. Government Sponsored Entities and Agencies [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 71,843 54,043
U.S. Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 71,843 54,043
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 934,922 938,289
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 934,922 938,289
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 114,867 96,810
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 114,867 96,810
Obligations of State and Political Subdivisions [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 104,830 111,663
Obligations of State and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 104,830 111,663
Corporate Debt Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 35,403 35,301
Corporate Debt Securities [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 35,403 35,301
Equity Securities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 5,613 5,070
Equity Securities [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 5,613 5,070
Investments Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 2,066 1,438
Total assets recurring fair value measurements 2,066 1,438
Investments Measured at Net Asset Value [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 2,066 1,438
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 5,778 5,633
Total securities - available-for-sale 5,613 2,938
Total assets recurring fair value measurements 11,391 8,571
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 5,778 5,633
Total securities - available-for-sale 5,613 2,938
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 5,613 2,938
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 1,261,865 1,238,238
Loans held for sale 20,320 17,315
Other assets-interest rate derivatives agreements 7,351 5,596
Total assets recurring fair value measurements 1,289,536 1,243,834
Other liabilities - interest rate derivatives agreements 7,345 5,199
Total liabilities recurring fair value measurements 7,345 5,199
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 1,261,865 1,238,238
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held for sale   17,315
Total nonrecurring fair value measurements   17,315
Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 71,843 54,043
Significant Other Observable Inputs (Level 2) [Member] | Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 934,922 938,289
Significant Other Observable Inputs (Level 2) [Member] | Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 114,867 96,810
Significant Other Observable Inputs (Level 2) [Member] | Obligations of State and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 104,830 111,663
Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale 35,403 35,301
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member] | Recurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities - available-for-sale   2,132
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring Fair Value Measurements [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 1,717 3,405
Other real estate owned and repossessed assets 5,297 8,346
Total nonrecurring fair value measurements $ 7,014 $ 11,751