COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Credit Extensions
Allowance for unfunded loan commitments, off-balance sheet credit exposures and recourse provision	$ 19,700	$ 12,700
Undisbursed Loan Commitments
Credit Extensions
Loan commitments	3,275,323	3,872,223
Commercial and Standby Letters of Credit
Credit Extensions
Commercial and standby letters of credit ("SBLCs")	$ 1,502,351	$ 1,253,066