VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 173,857	$ 153,210	$ 138,396	$ 149,647
Premises and equipment, net	112,318	114,434
Other assets	180,188	170,129
Variable Interest Entity, Primary Beneficiary [Member] | 706 North Clinton [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents	30	42
Premises and equipment, net	6,429	6,592
Other assets	0	9
Total assets	6,459	6,643
Accrued interest and other liabilities / Total liabilities	1	$ 5
Minority interest	3,230
Loss of minority interest	4,800
Minority interest loss exposure related to financing agreement	$ 1,600
Variable Interest Entity, Primary Beneficiary [Member] | 706 North Clinton [Member] | Oneida Preferred Funding II LLC [Member]
Variable Interest Entity [Line Items]
Percentage of membership interest	50.00%