XML 66 R54.htm IDEA: XBRL DOCUMENT
v3.24.3

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | $ 23,969 | $ 21,407
Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 11,817 | 10,990
Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 736 | 944
Construction and commercial multifamily | Construction |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Construction and commercial multifamily | Construction | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Construction and commercial multifamily | Construction | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Construction and commercial multifamily | Construction | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Construction and commercial multifamily | Commercial multifamily |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 4,612 | 0
Construction and commercial multifamily | Commercial multifamily | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 4,216 | 0
Construction and commercial multifamily | Commercial multifamily | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Construction and commercial multifamily | Commercial multifamily | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial real estate | Commercial real estate owner occupied |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 2,279 | 605
Commercial real estate | Commercial real estate owner occupied | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 1,563 | 650
Commercial real estate | Commercial real estate owner occupied | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial real estate | Commercial real estate owner occupied | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial real estate | Commercial real estate non-owner occupied |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 3,578 | 3,798
Commercial real estate | Commercial real estate non-owner occupied | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 309 | 342
Commercial real estate | Commercial real estate non-owner occupied | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial real estate | Commercial real estate non-owner occupied | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial and industrial |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 8,028 | 8,665
Commercial and industrial | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 4,129 | 4,788
Commercial and industrial | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Commercial and industrial | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 736 | 944
Residential real estate | Residential real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 4,525 | 6,696
Residential real estate | Residential real estate | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 1,548 | 5,035
Residential real estate | Residential real estate | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Residential real estate | Residential real estate | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Home equity |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 669 | 961
Consumer loans | Home equity | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 52 | 135
Consumer loans | Home equity | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Home equity | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Consumer other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 278 | 682
Consumer loans | Consumer other | Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 40
Consumer loans | Consumer other | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | 0 | 0
Consumer loans | Consumer other | Other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Total loans | $ 0 | $ 0

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/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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
- Details
Name: | us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=bhlb_InvestmentSecuritiesandCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=bhlb_OtherCollateralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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

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

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

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

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