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Loans and the Allowance for Credit Losses (Details) - Aging analysis - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  | $ 61,700 | $ 61,696
Total Past Due |  | 84,625 | 98,000
Current |  | 6,753,726 | 6,149,681
Loans |  | 6,838,351 | 6,247,681
30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 7,364 | 18,544
60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 2,030 | 4,939
90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 13,531 | 12,821
Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  | 30,062 | 33,019
Total Past Due |  | 39,553 | 38,204
Current |  | 1,259,875 | 1,483,763
Loans | [1] | 1,299,428 | 1,521,967
Commercial Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 4,305 | 1,445
Commercial Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 729 | 558
Commercial Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 4,457 | 3,182
Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  | 25,393 | 10,111
Total Past Due |  | 33,959 | 33,064
Current |  | 4,707,631 | 3,750,486
Loans |  | 4,741,590 | 3,783,550
Commercial Real Estate Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 1,622 | 13,258
Commercial Real Estate Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 1,009 | 4,140
Commercial Real Estate Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 5,935 | 5,555
Commercial Construction Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  | 3,150 | 14,015
Total Past Due |  | 3,150 | 16,487
Current |  | 537,028 | 601,260
Loans |  | 540,178 | 617,747
Commercial Construction Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  | 2,472
Commercial Construction Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  |
Commercial Construction Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  |
Residential Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  | 3,095 | 4,551
Total Past Due |  | 7,963 | 10,243
Current |  | 247,306 | 312,321
Loans |  | 255,269 | 322,564
Residential Real Estate Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 1,437 | 1,367
Residential Real Estate Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 292 | 241
Residential Real Estate Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  | 3,139 | 4,084
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual |  |  |
Total Past Due |  |  | 2
Current |  | 1,886 | 1,851
Loans |  | 1,886 | 1,853
Consumer Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  | 2
Consumer Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  |
Consumer Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total Past Due |  |  |
[1] | Included in commercial loans as of December 31, 2021 and December 31, 2020 were Paycheck Protection Program (“PPP”) loans of $93.1 million and $397.5 million, respectively. These loans are 100% federally guaranteed and currently not subject to any allocation of allowance for credit losses.

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
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