Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details)

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COMMITMENTS AND CONTINGENCIES (Balances of Commitments and Contingencies) (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Commitments with off-balance sheet risk:    
Total commitments with off-balance sheet risk $ 1,644,020 $ 1,747,090
Commitments with balance sheet risk:    
Loans held for sale 25,109 36,030
Total other commitments 1,669,129 1,783,120
Commitments to Extend Credit [Member]    
Commitments with off-balance sheet risk:    
Total commitments with off-balance sheet risk [1] 1,506,231 1,557,350
Standby Letters of Credit [Member]    
Commitments with off-balance sheet risk:    
Total commitments with off-balance sheet risk 74,814 139,371
Interest Rate Lock Commitments [Member]    
Commitments with off-balance sheet risk:    
Total commitments with off-balance sheet risk $ 62,975 $ 50,369
[1] Includes unfunded overdraft protection.