INVESTMENTS IN QUALIFIED AFFORDABLE HOUSING PARTNERSHIPS, TAX CREDIT AND OTHER INVESTMENTS, NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
INVESTMENTS IN QUALIFIED AFFORDABLE HOUSING PARTNERSHIPS, TAX CREDIT AND OTHER INVESTMENTS, NET
Minimum compliance period for qualified affordable housing partnerships to fully utilize the tax credits (in years)			15 years
Investments in qualified affordable housing partnerships, net	$ 173,045		$ 173,045		$ 193,978
Accrued expenses and other liabilities — Unfunded commitments	41,267		41,267		$ 61,525
Tax credits and other tax benefits recognized	8,591	$ 9,237	26,561	$ 26,617
Amortization expense included in income tax expense	$ 6,612	$ 6,348	$ 20,923	$ 18,744