XML 59 R40.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Loans, Allowance for Credit Losses and Credit Quality Finance Receivable, Nonaccrual (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance | [1] | $ 55,998 | $ 27,199
Financing Receivable, Nonaccrual, No Allowance | [1] | 19 | 621
Financing Receivable, Nonaccrual | [1] | 56,017 | 27,820
Commercial And Industrial [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 27,374 | 3,420
Financing Receivable, Nonaccrual, No Allowance |  | 19 | 19
Financing Receivable, Nonaccrual |  | 27,393 | 3,439
Commercial Real Estate [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 15,982 | 10,870
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | 15,982 | 10,870
Small Business [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 50 | 44
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | 50 | 44
Residential Real Estate [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 8,891 | 8,580
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 602
Financing Receivable, Nonaccrual |  | 8,891 | 9,182
Home Equity Loan [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 3,485 | 3,781
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | 3,485 | 3,781
Consumer - Other [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 216 | 504
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | $ 216 | $ 504
[1] | Included in these amounts were $1.5 million and $2.0 million of nonaccruing TDRs at September 30, 2022 and December 31, 2021, respectively.

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 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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 + 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 No definition available. + 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/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + 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: |