Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details)

v3.7.0.1
COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash $ 14,608 $ 33,595
Loans 2,033,085 1,959,929
Total pledged assets 2,584,479 2,533,517
Public deposits    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash 0 0
Loans 0 0
Total pledged assets 410,945 408,435
Repurchase agreements    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash 0 0
Loans 0 0
Total pledged assets 103,721 108,208
FHLB advances    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash 0 0
Loans 2,033,085 1,959,929
Total pledged assets 2,034,401 1,961,404
Derivatives    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash 14,608 33,595
Loans 0 0
Total pledged assets 18,845 37,971
Other purposes    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Cash 0 0
Loans 0 0
Total pledged assets 16,567 17,499
AFS Securities    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 337,578 342,104
AFS Securities | Public deposits    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 211,737 210,546
AFS Securities | Repurchase agreements    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 103,721 108,208
AFS Securities | FHLB advances    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 1,316 1,475
AFS Securities | Derivatives    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 4,237 4,376
AFS Securities | Other purposes    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 16,567 17,499
HTM Securities    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 199,208 197,889
HTM Securities | Public deposits    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 199,208 197,889
HTM Securities | Repurchase agreements    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 0 0
HTM Securities | FHLB advances    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 0 0
HTM Securities | Derivatives    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged 0 0
HTM Securities | Other purposes    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Securities pledged $ 0 $ 0