Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The following table presents the original cost and accumulated amortization of intangible assets (in thousands):

	Dec. 31,
	2021		2020
Core deposit premiums	$	103,200	$	103,200
Less accumulated amortization	44,149		32,256
Net core deposit premiums	59,051		70,944
Other identifiable intangible assets	78,154		82,731
Less accumulated amortization	45,427		40,239
Net other identifiable intangible assets	32,727		42,492
Total intangible assets, net	$	91,778	$	113,436

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Expected amortization expense for intangible assets that will continue to be amortized (in thousands):

	Core Deposit Premiums		Other Identifiable Intangible Assets		Total
2022	$	10,981	$	4,665	$	15,646
2023	10,145		3,625		13,770
2024	9,379		2,611		11,990
2025	8,675		2,201		10,876
2026	7,986		1,828		9,814
Thereafter	11,885		17,797		29,682
	$	59,051	$	32,727	$	91,778

Schedule of Goodwill [Table Text Block]

The changes in the carrying value of goodwill by operating segment are as follows (in thousands):

	Commercial Banking		Consumer Banking		Wealth Management		Funds Management and Other		Total
Balance, December 31, 2019	$	913,931	$	43,458	$	90,702	$	—	$	1,048,091
Balance, December 31, 2020	913,931		43,458		90,702		—		1,048,091
Sale of consolidated merchant banking investment during 2021	(3,342)		—		—		—		(3,342)
Balance, December 31, 2021	$	910,589	$	43,458	$	90,702	$	—	$	1,044,749