TRANSACTIONS WITH RELATED PARTIES Related Parties Textual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 31,300,000
Operating Leases, Rent Expense	8,600,000	$ 8,500,000	$ 8,200,000
Related Party Deposit Liabilities	18,300,000	14,700,000
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Operating Leases, Rent Expense	$ 0	$ 0