Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details)

v3.3.1.900
FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value $ 903,292 $ 1,102,114
Loans held for sale 36,030 42,519
Interest rate swap, assets 3,758 2,681
Cash flow hedges, assets 946 580
Interest rate lock commitments 5,405 3,774
Interest rate swap, liabilities 3,758 2,681
Cash flow hedges, liabilities 10,352 8,433
Fair value hedges, liabilities $ 888  
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value  
Loans held for sale  
Interest rate swap, assets  
Cash flow hedges, assets  
Interest rate swap, liabilities  
Cash flow hedges, liabilities  
Fair value hedges, liabilities  
Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value $ 903,292 1,102,114
Loans held for sale 36,030 42,519
Interest rate swap, assets 3,758 2,681
Cash flow hedges, assets 946 580
Interest rate swap, liabilities 3,758 2,681
Cash flow hedges, liabilities 10,352 8,433
Fair value hedges, liabilities $ 888  
Significant Unobservable Inputs Level 3 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value  
Loans held for sale  
Interest rate swap, assets  
Cash flow hedges, assets  
Interest rate swap, liabilities  
Cash flow hedges, liabilities  
Fair value hedges, liabilities  
Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Loans held for sale $ 36,030  
Interest rate swap, assets 3,758 2,681
Cash flow hedges, assets 946 580
Interest rate lock commitments   513
Interest rate swap, liabilities 3,758 2,681
Cash flow hedges, liabilities 10,352 8,433
Fair value hedges, liabilities 888  
Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Loans held for sale 36,030  
Interest rate swap, assets 3,758 2,681
Cash flow hedges, assets 946 580
Interest rate swap, liabilities 3,758 2,681
Cash flow hedges, liabilities 10,352 8,433
Fair value hedges, liabilities 888  
Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments   513
US Government Agencies Debt Securities [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value   8,454
US Government Agencies Debt Securities [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value   8,454
US Government Agencies Debt Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value   8,454
Obligations of States and Political Subdivisions [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 268,079 445,647
Obligations of States and Political Subdivisions [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 268,079 445,647
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 268,079 445,647
Corporate and Other Bonds [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 75,979 78,680
Corporate and Other Bonds [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 75,979 78,680
Corporate and Other Bonds [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 75,979 78,680
Mortgage Backed Securities [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 548,171 559,329
Mortgage Backed Securities [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 548,171 559,329
Mortgage Backed Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 548,171 559,329
Other Securities [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 11,063 10,004
Other Securities [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 11,063 10,004
Other Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Securities available for sale, at fair value 11,063 10,004
Interest Rate Lock Commitments [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments $ 701 513
Interest Rate Lock Commitments [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments  
Interest Rate Lock Commitments [Member] | Significant Other Observable Inputs Level 2 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments  
Interest Rate Lock Commitments [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments $ 701 $ 513
Interest Rate Lock Commitments [Member] | Recurring [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments 701  
Interest Rate Lock Commitments [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]    
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate lock commitments $ 701