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Loans and Leases - Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
loan
Financing Receivable, Credit Quality Indicator [Line Items]  
Modifications not classified as TDRs, number of loans | loan 1,420
Modification not classified as TDRs, balance $ 720.1
Minimum [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Amount of loan relationship balance, loans reviewed annually 1.0
Maximum [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Amount of loan relationship balance, loans reviewed on a performance basis $ 1.0