XML 60 R39.htm IDEA: XBRL DOCUMENT
v3.24.3

Loans, Allowance for Credit Losses and Credit Quality - Finance Receivable, Nonaccrual (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance | [1] | $ 92,596 |  | $ 92,596 |  | $ 43,040
Financing Receivable, Nonaccrual, No Allowance | [1] | 11,652 |  | 11,652 |  | 11,343
Financing Receivable, Nonaccrual | [1] | 104,248 |  | 104,248 |  | 54,383
Accounts Receivable, Noncurrent, Accrued Interest, Writeoff |  | 95 | $ 62 | 594 | $ 487 |
Commercial And Industrial [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 375 |  | 375 |  | 19,890
Financing Receivable, Nonaccrual, No Allowance |  | 11,652 |  | 11,652 |  | 298
Financing Receivable, Nonaccrual |  | 12,027 |  | 12,027 |  | 20,188
Commercial Real Estate [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 77,951 |  | 77,951 |  | 11,911
Financing Receivable, Nonaccrual, No Allowance |  | 0 |  | 0 |  | 11,041
Financing Receivable, Nonaccrual |  | 77,951 |  | 77,951 |  | 22,952
Small Business [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 501 |  | 501 |  | 394
Financing Receivable, Nonaccrual, No Allowance |  | 0 |  | 0 |  | 4
Financing Receivable, Nonaccrual |  | 501 |  | 501 |  | 398
Residential Real Estate [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 9,744 |  | 9,744 |  | 7,634
Financing Receivable, Nonaccrual, No Allowance |  | 0 |  | 0 |  | 0
Financing Receivable, Nonaccrual |  | 9,744 |  | 9,744 |  | 7,634
Home Equity Loan [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 3,992 |  | 3,992 |  | 3,171
Financing Receivable, Nonaccrual, No Allowance |  | 0 |  | 0 |  | 0
Financing Receivable, Nonaccrual |  | 3,992 |  | 3,992 |  | 3,171
Consumer - Other [Member] |  |  |  |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |  |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 33 |  | 33 |  | 40
Financing Receivable, Nonaccrual, No Allowance |  | 0 |  | 0 |  | 0
Financing Receivable, Nonaccrual |  | $ 33 |  | $ 33 |  | $ 40
[1] | (1)Nonaccrual balances reported above without an allowance for credit losses are attributable to loans evaluated on an individual basis where it was determined that there was no risk of loss due to sufficient underlying collateral values, or reflect partially charged-off loans, with no risk of further loss.

X
- Definition Finance Receivable, Nonaccrual, with allowance + References No definition available. + Details
Name: | indb_FinanceReceivableNonaccrualwithallowance
Namespace Prefix: | indb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of writeoff of accrued interest on accounts receivable classified as noncurrent recognized by reversing interest income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3D -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3D + Details
Name: | us-gaap_AccountsReceivableNoncurrentAccruedInterestWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost 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_FinancingReceivableNonaccrualNoAllowance
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/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableNonaccrualStatusLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (2) -Publisher SEC Reference 4: 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_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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