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Age Analysis of Past Due Financing receivables (Details) $ in Thousands | Dec. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan
--- | --- | ---
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 480 | 481
Financing Receivable, before Allowance for Credit Loss |  | $ 14,278,070 | $ 13,928,675
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 29 | 35
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 40 | 46
Number of Loans Total Past Due | loan |  | 549 | 562
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 23,616 | $ 5,934
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 29,433 | 6,560
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 10,305 | 29,426
Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 63,354 | 41,920
Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 14,214,716 | $ 13,886,755
Commercial and Industrial [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 6 | 3
Financing Receivable, before Allowance for Credit Loss |  | $ 1,579,986 | $ 1,635,103
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 1 | 1
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 2 | 3
Number of Loans Total Past Due | loan |  | 9 | 7
Commercial and Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 398 | $ 49
Commercial and Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 17,538 | 175
Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 673 | 23,726
Commercial and Industrial [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 18,609 | 23,950
Commercial and Industrial [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 1,561,377 | $ 1,611,153
Commercial Real Estate [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 8 | 7
Financing Receivable, before Allowance for Credit Loss |  | $ 8,041,508 | $ 7,760,230
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 2 | 5
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 3 | 3
Number of Loans Total Past Due | loan |  | 13 | 15
Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 14,674 | $ 2,052
Commercial Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 8,419 | 4,971
Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 7,279 | 2,977
Commercial Real Estate [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 30,372 | 10,000
Commercial Real Estate [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 8,011,136 | $ 7,750,230
Construction Loans [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 0 | 0
Financing Receivable, before Allowance for Credit Loss |  | $ 849,586 | $ 1,154,413
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 0 | 0
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 0 | 0
Number of Loans Total Past Due | loan |  | 0 | 0
Construction Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 0 | $ 0
Construction Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 0 | 0
Construction Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 0 | 0
Construction Loans [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 0 | 0
Construction Loans [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 849,586 | $ 1,154,413
Small Business [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 6 | 12
Financing Receivable, before Allowance for Credit Loss |  | $ 251,956 | $ 219,102
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 1 | 3
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 6 | 3
Number of Loans Total Past Due | loan |  | 13 | 18
Small Business [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 400 | $ 111
Small Business [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 20 | 25
Small Business [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 243 | 5
Small Business [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 663 | 141
Small Business [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 251,293 | $ 218,961
Residential Real Estate [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 24 | 8
Financing Receivable, before Allowance for Credit Loss |  | $ 2,424,754 | $ 2,035,524
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 7 | 8
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 13 | 16
Number of Loans Total Past Due | loan |  | 44 | 32
Residential Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 6,216 | $ 1,654
Residential Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 2,187 | 1,105
Residential Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 1,573 | 1,725
Residential Real Estate [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 9,976 | 4,484
Residential Real Estate [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 2,414,778 | $ 2,031,040
Home Equity [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan |  | 23 | 19
Financing Receivable, before Allowance for Credit Loss |  | $ 1,097,626 | $ 1,088,750
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan |  | 4 | 3
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan |  | 10 | 17
Number of Loans Total Past Due | loan |  | 37 | 39
Home Equity [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 1,640 | $ 1,647
Home Equity [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 1,238 | 201
Home Equity [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 529 | 965
Home Equity [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | 3,407 | 2,813
Home Equity [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 1,094,219 | $ 1,085,937
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan | [1] | 413 | 432
Financing Receivable, before Allowance for Credit Loss | [1] | $ 32,654 | $ 35,553
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan | [1] | 14 | 15
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan | [1] | 6 | 4
Number of Loans Total Past Due | loan | [1] | 433 | 451
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss | [1] | $ 288 | $ 421
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss | [1] | 31 | 83
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss | [1] | 8 | 28
Consumer Portfolio Segment [Member] | Financial Asset, Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss | [1] | 327 | 532
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Financing Receivable, before Allowance for Credit Loss | [1] | $ 32,327 | $ 35,021
[1] | Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

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