XML 100 R84.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Loans and Leases - Summary Of Loan And Lease Portfolio Aging By Class Of Loan (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | $ 52,505,168 | $ 50,726,052
90 or More Days Past Due and Accruing | 0 | 278
Non-accrual | 460,725 | 208,525
Non-accrual With No Allowance | 117,602 | 39,037
Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 42,068,001 | 40,929,834
90 or More Days Past Due and Accruing | 0 | 278
Non-accrual | 426,426 | 179,134
Non-accrual With No Allowance | 98,451 | 25,661
Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 18,037,942 | 16,885,475
90 or More Days Past Due and Accruing | 0 | 94
Non-accrual | 248,078 | 122,855
Non-accrual With No Allowance | 50,943 | 20,066
Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,404,007 | 1,557,841
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 20,787 | 35,068
Non-accrual With No Allowance | 1,080 | 1,330
Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 14,492,436 | 13,569,762
90 or More Days Past Due and Accruing | 0 | 184
Non-accrual | 120,151 | 11,383
Non-accrual With No Allowance | 26,666 | 2,681
Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,898,600 | 7,587,970
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 18,043 | 0
Non-accrual With No Allowance | 17,953 | 0
Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,235,016 | 1,328,786
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 19,367 | 9,828
Non-accrual With No Allowance | 1,809 | 1,584
Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 10,437,167 | 9,796,218
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 34,299 | 29,391
Non-accrual With No Allowance | 19,151 | 13,376
Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 8,853,669 | 8,227,923
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 12,750 | 5,704
Non-accrual With No Allowance | 6,923 | 856
Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,427,692 | 1,516,955
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 21,425 | 23,545
Non-accrual With No Allowance | 12,225 | 12,471
Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 155,806 | 51,340
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 124 | 142
Non-accrual With No Allowance | 3 | 49
Total Past Due and Non-accrual |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 574,307 | 255,511
Total Past Due and Non-accrual | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 516,644 | 195,543
Total Past Due and Non-accrual | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 255,345 | 126,109
Total Past Due and Non-accrual | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 42,784 | 35,068
Total Past Due and Non-accrual | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 142,824 | 13,026
Total Past Due and Non-accrual | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 46,928 | 7,538
Total Past Due and Non-accrual | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 28,763 | 13,802
Total Past Due and Non-accrual | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 57,663 | 59,968
Total Past Due and Non-accrual | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 26,949 | 26,816
Total Past Due and Non-accrual | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 30,079 | 32,506
Total Past Due and Non-accrual | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 635 | 646
30-59 Days Past Due and Accruing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 50,885 | 33,873
30-59 Days Past Due and Accruing | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 34,668 | 12,893
30-59 Days Past Due and Accruing | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 3,949 | 2,270
30-59 Days Past Due and Accruing | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 0 | 0
30-59 Days Past Due and Accruing | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 22,115 | 1,459
30-59 Days Past Due and Accruing | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 2,508 | 5,198
30-59 Days Past Due and Accruing | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,096 | 3,966
30-59 Days Past Due and Accruing | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 16,217 | 20,980
30-59 Days Past Due and Accruing | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 9,595 | 14,894
30-59 Days Past Due and Accruing | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,273 | 5,676
30-59 Days Past Due and Accruing | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 349 | 410
60-89 Days Past Due and Accruing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 62,697 | 12,835
60-89 Days Past Due and Accruing | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 55,550 | 3,238
60-89 Days Past Due and Accruing | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 3,318 | 890
60-89 Days Past Due and Accruing | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 21,997 | 0
60-89 Days Past Due and Accruing | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 558 | 0
60-89 Days Past Due and Accruing | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 26,377 | 2,340
60-89 Days Past Due and Accruing | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 3,300 | 8
60-89 Days Past Due and Accruing | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 7,147 | 9,597
60-89 Days Past Due and Accruing | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 4,604 | 6,218
60-89 Days Past Due and Accruing | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 2,381 | 3,285
60-89 Days Past Due and Accruing | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 162 | 94
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 51,930,861 | 50,470,541
Current | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 41,551,357 | 40,734,291
Current | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 17,782,597 | 16,759,366
Current | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,361,223 | 1,522,773
Current | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 14,349,612 | 13,556,736
Current | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,851,672 | 7,580,432
Current | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,206,253 | 1,314,984
Current | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 10,379,504 | 9,736,250
Current | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 8,826,720 | 8,201,107
Current | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,397,613 | 1,484,449
Current | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 155,171 | $ 50,694
In Process | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | $ 32,700 |

X
- Definition Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-80 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wbs_NonRealEstateReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wbs_AssetBasedLendingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_EquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerBorrowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=wbs_FinancialAssetNotPastDueInProcessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |