Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details)

v3.8.0.1
FAIR VALUE MEASUREMENTS (Carrying Values and Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
ASSETS    
Cash and cash equivalents $ 199,373 $ 179,237
Securities available for sale, at fair value 974,222 946,764
Held to maturity securities 203,483 202,315
Restricted stock 75,283 60,782
Loans held for sale 40,662 36,487
Net loans 7,117,593 6,265,443
Derivatives:    
Cash flow hedges 49 211
Fair value hedges 1,598 1,437
Best efforts forward delivery commitments 12 1,469
Accrued interest receivable 26,427 23,448
Bank owned life insurance 182,854 179,318
LIABILITIES    
Deposits 6,977,845 6,370,457
Borrowings 1,198,645 970,195
Accrued interest payable 2,538 2,230
Interest rate swap 1,350 1,005
Cash flow hedges 8,005 9,619
Fair value hedges 76 296
Quoted Prices in Active Markets for Identical Assets Level 1    
ASSETS    
Cash and cash equivalents 199,373 179,237
Securities available for sale, at fair value 0 0
Held to maturity securities 0 0
Restricted stock 0 0
Loans held for sale 0 0
Net loans 0 0
Derivatives:    
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 0 0
Accrued interest receivable 0 0
Bank owned life insurance 0 0
LIABILITIES    
Deposits 0 0
Borrowings 0 0
Accrued interest payable 0 0
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Significant Other Observable Inputs Level 2    
ASSETS    
Cash and cash equivalents 0 0
Securities available for sale, at fair value 974,222 946,764
Held to maturity securities 203,483 202,315
Restricted stock 75,283 60,782
Loans held for sale 40,662 36,487
Net loans 0 0
Derivatives:    
Cash flow hedges 49 211
Fair value hedges 1,598 1,437
Best efforts forward delivery commitments 0 0
Accrued interest receivable 26,427 23,448
Bank owned life insurance 182,854 179,318
LIABILITIES    
Deposits 6,977,845 6,370,457
Borrowings 1,198,645 970,195
Accrued interest payable 2,538 2,230
Interest rate swap 1,350 1,005
Cash flow hedges 8,005 9,619
Fair value hedges 76 296
Significant Unobservable Inputs Level 3    
ASSETS    
Cash and cash equivalents 0 0
Securities available for sale, at fair value 0 0
Held to maturity securities 0 0
Restricted stock 0 0
Loans held for sale 0 0
Net loans 7,117,593 6,265,443
Derivatives:    
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 12 1,469
Accrued interest receivable 0 0
Bank owned life insurance 0 0
LIABILITIES    
Deposits 0 0
Borrowings 0 0
Accrued interest payable 0 0
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Interest Rate Swap    
Derivatives:    
Interest rate derivatives 1,350 1,005
Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets Level 1    
Derivatives:    
Interest rate derivatives 0 0
Interest Rate Swap | Significant Other Observable Inputs Level 2    
Derivatives:    
Interest rate derivatives 1,350 1,005
Interest Rate Swap | Significant Unobservable Inputs Level 3    
Derivatives:    
Interest rate derivatives 0 0
Interest Rate Lock Commitments    
Derivatives:    
Interest rate derivatives 559 610
Interest Rate Lock Commitments | Quoted Prices in Active Markets for Identical Assets Level 1    
Derivatives:    
Interest rate derivatives 0 0
Interest Rate Lock Commitments | Significant Other Observable Inputs Level 2    
Derivatives:    
Interest rate derivatives 0 0
Interest Rate Lock Commitments | Significant Unobservable Inputs Level 3    
Derivatives:    
Interest rate derivatives 559 610
Carrying Value    
ASSETS    
Cash and cash equivalents 199,373 179,237
Securities available for sale, at fair value 974,222 946,764
Held to maturity securities 199,639 201,526
Restricted stock 75,283 60,782
Loans held for sale 40,662 36,487
Net loans 7,103,344 6,269,868
Derivatives:    
Cash flow hedges 49 211
Fair value hedges 1,598 1,437
Best efforts forward delivery commitments 12 1,469
Accrued interest receivable 26,427 23,448
Bank owned life insurance 182,854 179,318
LIABILITIES    
Deposits 6,991,718 6,379,489
Borrowings 1,219,414 990,089
Accrued interest payable 2,538 2,230
Interest rate swap 1,350 1,005
Cash flow hedges 8,005 9,619
Fair value hedges 76 296
Carrying Value | Interest Rate Swap    
Derivatives:    
Interest rate derivatives 1,350 1,005
Carrying Value | Interest Rate Lock Commitments    
Derivatives:    
Interest rate derivatives $ 559 $ 610