Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities - Investments in Tax Credit and Other Investments, Net (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) investment	Dec. 31, 2021 USD ($) investment	Dec. 31, 2020 USD ($) investment
Investments in qualified housing partnerships, net
Tax credits and other tax benefits recognized	$ 52,132	$ 50,643	$ 45,971
Amortization expense included in income tax expense	38,759	33,248	37,132
Investments in tax credit and other investments, net
(Impairment recoveries) amortization of tax credit and other investments	113,358	122,457	70,082
Unrealized (losses) gains on equity securities with readily determinable values	(2,928)	(746)	732
Impairment recoveries (losses)	$ 469	$ 1,250	$ (3,699)
Investment in Tax Credit and Other Investments
Investments in tax credit and other investments, net
Number of historic tax credits recoveries/losses | investment	1	1	3
Number of energy tax credits recoveries | investment	3	2	1
Number of Impairment Losses of Historic Tax Credit Investments | investment	2
Historic Tax Credit Investment
Investments in tax credit and other investments, net
Number of historic tax credits recoveries/losses | investment			3
Pre-tax impairment charge or recovery	$ 2,900		$ 4,800
Energy Tax Credit Investment
Investments in tax credit and other investments, net
Pre-tax impairment charge or recovery	$ 3,400		1,500
Non-Marketable Equity Security
Investments in tax credit and other investments, net
Pre-tax impairment charge or recovery			$ 360
Number of impaired or recovered non-marketable equity securities | investment			1