Loans and Credit Quality - Loan Modifications not Classified as TDRs (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) contract
Receivables [Abstract]
Portfolio loans, Interest only \| $	$ 43,379
Portfolio loans, Full Payment Deferral \| $	22,165
Portfolio loans, Total \| $	$ 65,544
Number of modifications, Interest Only \| contract	23,000
Number of modifications, Full Payment Deferral \| contract	11,000
Number of modifications, Total \| contract	34,000

Financing Receivable, Modifications, Non Troubled Debt, Full Payment Deferral

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Financing Receivable, Modifications, Non Troubled Debt, Interest

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Financing Receivables, Modifications, Non Troubled Debt, Amount

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Financing Receivables, Modifications, Non Troubled Debt, Full Payment Deferral

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Financing Receivables, Modifications, Non Troubled Debt, Interest, Number Of Contracts

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Financing Receivables, Modifications, Non-Troubled Debt, Number Of Contracts

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