LOANS AND THE ALLOWANCE FOR LOAN LOSSES (Details) - Composition of Loan Portfolio (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,539,531	$ 960,604
Net deferred loan (fees) costs	(890)	339
Total loans receivable	2,538,641	960,943
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	499,816	229,688
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,634,510	536,539
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	167,359	42,722
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	234,967	150,571
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,879	$ 1,084