FAIR VALUE MEASUREMENTS - Change in Fair Value of Interest Rate Commitments (Details) - Interest rate lock commitments - Significant unobservable inputs (Level 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Interest rate lock commitments at beginning of period	$ 408	$ 342	$ 354
Fair value of acquired Yadkin interest rate lock commitments	0	0	231
Issuances	1,838	1,620	2,366
Settlements	(1,819)	(1,554)	(2,609)
Interest rate lock commitments at end of period	$ 427	$ 408	$ 342