Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

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,
	2023		2022
Core deposit premiums	$	103,200	$	103,200
Less: Accumulated amortization	65,275		55,130
Net core deposit premiums	37,925		48,070
Other identifiable intangible assets	67,151		78,154
Less: Accumulated amortization	45,097		50,093
Net other identifiable intangible assets	22,054		28,061
Total intangible assets, net	$	59,979	$	76,131

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
2024	$	9,379	$	2,163	$	11,542
2025	8,675		1,817		10,492
2026	7,986		1,498		9,484
2027	6,956		1,313		8,269
2028	4,929		1,022		5,951
Thereafter	—		14,241		14,241
Total	$	37,925	$	22,054	$	59,979

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, 2021	$	910,589	$	43,458	$	90,702	$	—	$	1,044,749
Balance, December 31, 2022	910,589		43,458		90,702		—		1,044,749
Balance, December 31, 2023	910,589		43,458		90,702		—		1,044,749