INVESTMENTS IN QUALIFIED AFFORDABLE HOUSING PARTNERSHIPS, TAX CREDIT AND OTHER INVESTMENTS, NET (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
INVESTMENTS IN QUALIFIED AFFORDABLE HOUSING PARTNERSHIPS, TAX CREDIT AND OTHER INVESTMENTS, NET
Investments in qualified affordable housing partnerships, net	$ 183,917	$ 193,978
Accrued expenses and other liabilities — Unfunded commitments	57,243	61,525
Tax credits and other tax benefits recognized	37,252	38,271	$ 32,613
Amortization expense included in income tax expense	$ 28,206	$ 26,814	$ 21,428