FAIR VALUE MEASUREMENTS- Change in Fair Value of Interest Rate Commitments (Details) (Interest rate lock commitments, Level 3, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest rate lock commitments | Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Interest rate lock commitments at beginning of period	$ 354	$ 795	$ 212
Fair value of acquired Yadkin interest rate lock commitments	231	0	0
Issuances	2,366	2,909	2,600
Settlements	(2,609)	(3,350)	(2,017)
Interest rate lock commitments at end of period	$ 342	$ 354	$ 795