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Loans and the Allowance for Credit Losses (Details) - Loans receivable on nonaccrual status - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 56,213	$ 61,696
Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	33,665
Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	22,548
Commercial Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	31,083	33,019	$ 31,083
Commercial Portfolio Segment [Member] | Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	28,009
Commercial Portfolio Segment [Member] | Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,074
Commercial Real Estate Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	16,005	10,111	16,005
Commercial Real Estate Portfolio Segment [Member] | Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,722
Commercial Real Estate Portfolio Segment [Member] | Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	13,283
Commercial Construction Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,765	14,015	4,765
Commercial Construction Portfolio Segment [Member] | Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,934
Commercial Construction Portfolio Segment [Member] | Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,831
Residential Real Estate Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,360	4,551	$ 4,360
Residential Real Estate Portfolio Segment [Member] | Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status
Residential Real Estate Portfolio Segment [Member] | Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,360
Consumer Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status
Consumer Portfolio Segment [Member] | Nonaccrual Loans with an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status
Consumer Portfolio Segment [Member] | Nonaccrual Loans without an ACL [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
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-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
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