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Loans And Allowance For Credit Losses (Summary of Activity in the Allowance for Credit Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for Credit Loss, Beginning Balance | $ 138,039 | $ 172,395 | $ 150,044 | $ 220,834
Provision for credit losses on loans | 10,150 | (5,961) | 6,751 | (43,749)
Loans charged off | 7,230 | 6,577 | 21,432 | 28,386
Recoveries on Loans | 2,418 | 2,918 | 8,014 | 14,076
Net loan charge-offs (recoveries) | 4,812 | 3,659 | 13,418 | 14,310
Allowance for Credit Loss, Ending Balance | 143,377 | 162,775 | 143,377 | 162,775
Liability for Unfunded Lending Commitments, Beginning Balance | 24,907 | 24,208 | 24,204 | 38,307
Provision for credit losses on unfunded lending commitments | 5,140 | (1,424) | 5,843 | (15,523)
Liability for Unfunded Lending Commitments, Ending Balance | 30,047 | 22,784 | 30,047 | 22,784
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | 173,424 | 185,559 | 173,424 | 185,559
Commercial Portfolio Segment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for Credit Loss, Beginning Balance | 99,525 | 98,038 | 97,776 | 121,549
Provision for credit losses on loans | 4,014 | 186 | 5,851 | (28,302)
Loans charged off | 509 | 190 | 893 | 692
Recoveries on Loans | 56 | 130 | 352 | 5,609
Net loan charge-offs (recoveries) | 453 | 60 | 541 | (4,917)
Allowance for Credit Loss, Ending Balance | 103,086 | 98,164 | 103,086 | 98,164
Liability for Unfunded Lending Commitments, Beginning Balance | 23,617 | 23,350 | 23,271 | 37,259
Provision for credit losses on unfunded lending commitments | 5,182 | (1,564) | 5,528 | (15,473)
Liability for Unfunded Lending Commitments, Ending Balance | 28,799 | 21,786 | 28,799 | 21,786
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | 131,885 | 119,950 | 131,885 | 119,950
Personal Banking Portfolio Segment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for Credit Loss, Beginning Balance | 38,514 | 74,357 | 52,268 | 99,285
Provision for credit losses on loans | 6,136 | (6,147) | 900 | (15,447)
Loans charged off | 6,721 | 6,387 | 20,539 | 27,694
Recoveries on Loans | 2,362 | 2,788 | 7,662 | 8,467
Net loan charge-offs (recoveries) | 4,359 | 3,599 | 12,877 | 19,227
Allowance for Credit Loss, Ending Balance | 40,291 | 64,611 | 40,291 | 64,611
Liability for Unfunded Lending Commitments, Beginning Balance | 1,290 | 858 | 933 | 1,048
Provision for credit losses on unfunded lending commitments | (42) | 140 | 315 | (50)
Liability for Unfunded Lending Commitments, Ending Balance | 1,248 | 998 | 1,248 | 998
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS | $ 41,539 | $ 65,609 | $ 41,539 | $ 65,609

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- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) + Details
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