Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net [Abstract]
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	$ 176,965		$ 183,917
Accrued expenses and other liabilities — Unfunded commitments	52,223		$ 57,243
Tax credits and other tax benefits recognized	9,621	$ 9,452
Amortization expense included in income tax expense	$ 6,950	$ 6,966