Loans and Allowance for Credit Losses - Financial Impact of Modifications (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Commercial loans | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension and Payment Delays (in months)	14 months		14 months
Commercial loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)		7 months	12 months	7 months
Weighted-Average Term Extension and Payment Delays (in months)	6 months		4 months	13 months
Commercial loans | Business banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)			12 months
Commercial loans | Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)		96 months
Weighted-Average Term Extension and Payment Delays (in months)				13 months
Consumer loans | Consumer real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	276 months		303 months	121 months
Weighted-Average Term Extension and Payment Delays (in months)		13 months