COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Commitments outstanding to extend credit	$ 0		$ 0		$ 0
Letters of credit issued to guarantee performance of a client to a third party	16,800		16,800		16,300
Affordable Housing Program Obligation	28,700		28,700		31,500
Affordable housing contingent commitment	0		0		0
Low-income housing tax credit	600	$ 300	1,300	$ 700
Estimated Litigation Liability	800		800		1,300
Commitments to Extend Credit
Commitments and Contingencies Disclosure [Line Items]
Commitments outstanding to extend credit	$ 2,100,000		$ 2,100,000		$ 2,000,000