Annual report pursuant to Section 13 and 15(d)

DEPOSITS (Schedule of Deposits by Type) (Details)

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DEPOSITS (Schedule of Deposits by Type) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract]    
NOW accounts $ 1,929,416 $ 1,765,956
Money market accounts 1,685,174 1,435,591
Savings accounts 546,274 591,742
Time deposits of $250,000 and over 226,205 189,647
Other time deposits 1,102,441 1,002,928
Total interest-bearing deposits $ 5,489,510 $ 4,985,864