Annual report pursuant to Section 13 and 15(d)

SHORT-TERM BORROWINGS (Details)

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SHORT-TERM BORROWINGS (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Short-term Debt [Line Items]    
Total short-term borrowings $ 3,692,654 $ 615,279
Federal funds purchased and securities sold under agreements to repurchase    
Short-term Debt [Line Items]    
Total short-term borrowings 1,248,089 601,272
Federal Home Loan Bank advances    
Short-term Debt [Line Items]    
Total short-term borrowings 2,425,000 0
Other borrowings    
Short-term Debt [Line Items]    
Total short-term borrowings $ 19,565 $ 14,007