Loans and ACL - Summary of Modifications' Financial Effect (Details)	3 Months Ended
	Mar. 31, 2023 USD ($) Rate
Commercial: | Commercial and industrial | Renewals
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	4 months
Financing Receivable, Modified, Weighted Average Interest Rate Increase from Modification	0.40%
Commercial: | Commercial and industrial | Term Extensions
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	3 months
Commercial: | CRE | Renewals
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	9 months
Financing Receivable, Modified, Weighted Average Interest Rate Increase from Modification	0.10%
Commercial: | CRE | Payment Delays
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	233 days
Commercial: | Commercial construction | Renewals
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	5 months
Consumer: | Residential mortgage | Term Extensions
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	158 months
Consumer: | Residential mortgage | Capitalizations
Financing Receivable, Modifications [Line Items]
Amount capitalized | $	$ 19,000
Consumer: | Residential mortgage | Payment Delays
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	195 days
Consumer: | Residential mortgage | Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	97 months
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification	0.80%
Consumer: | Residential mortgage | Combination - Capitalization and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	111 months
Amount capitalized | $	$ 31,000
Consumer: | Residential mortgage | Combination - Capitalization, Interest Rate and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	82 months
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification	0.30%
Amount capitalized | $	$ 23,000
Consumer: | Home equity | Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	318 months
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification	2.30%
Consumer: | Indirect auto | Term Extensions
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	25 months
Consumer: | Indirect auto | Payment Delays
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	129 days
Consumer: | Indirect auto | Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	11 months
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification	7.00%
Consumer: | Other consumer | Term Extensions
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	25 months
Consumer: | Other consumer | Combination - Interest Rate Reduction and Term Extension
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified, Weighted Average Term Increase from Modification	101 months
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification	3.00%