Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Investments in Qualified Affordable Housing Partnerships, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities [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, And Related Unfunded Commitments [Abstract]
Investments in qualified affordable housing partnerships, net	$ 289,423		$ 289,741
Accrued expenses and other liabilities — Unfunded commitments	148,110		$ 146,152
Additional Information related to Investments in Qualified Affordable Housing Partnerships, Net [Abstract]
Tax credits and other tax benefits recognized	12,830	$ 11,028
Amortization expense included in income tax expense	$ 10,025	$ 8,712