OFF BALANCE SHEET RISKS, COMMITMENTS AND CONTINGENT LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Commitments and letters of credit
Loan commitment, line credit	$ 844,919	$ 694,178
Unused warehouse lines of credit
Commitments and letters of credit
Loan commitment, line credit	258,952	208,069
Unused home equity lines of credit
Commitments and letters of credit
Loan commitment, line credit	275,482	240,372
Unused loan commitments - other
Commitments and letters of credit
Loan commitment, line credit	275,965	216,806
Commitments to purchase laons
Commitments and letters of credit
Loan commitment, line credit	20,879	15,798
Standby letters of credit
Commitments and letters of credit
Loan commitment, line credit	$ 13,641	12,383
FHLB letters of credit
Commitments and letters of credit
Loan commitment, line credit		$ 750