XML 67 R47.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans, Allowance for Credit Losses and Credit Quality FICO and LTV (Details) - score | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Financing Receivable With Quality Of Loan Based On Weighted Average Fico Rating | [1] | 749 | 749
Financing Receivable With Credit Quality Of Loan Based Upon the Weighted Average Loan-To-Value Ratio | [2] | 57.70% | 59.00%
Home Equity Line of Credit [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Financing Receivable With Quality Of Loan Based On Weighted Average Fico Rating | [1] | 770 | 767
Financing Receivable With Credit Quality Of Loan Based Upon the Weighted Average Loan-To-Value Ratio | [2],[3] | 46.60% | 46.60%
[1] | The average FICO scores at September 30, 2020 are based upon rescores available from August 2020 and origination score data for loans booked in September 2020. The average FICO scores at December 31, 2019 were based upon rescores available from November 2019 and origination score data for loans booked in December 2019.
[2] | The combined LTV ratios for September 30, 2020 are based upon updated automated valuations as of August 2020, when available, and/or the most current valuation data available. The combined LTV ratios for December 31, 2019 were based upon updated automated valuations as of November 2019, when available, and/or the most current valuation data available as of such date. The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained. If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.
[3] | For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

X
- Definition Financing Receivable With Credit Quality Of Loan Based Upon the Weighted Average Loan-To-Value Ratio + References No definition available. + Details
Name: | indb_FinancingReceivableWithCreditQualityOfLoanBasedUpontheWeightedAverageLoanToValueRatio
Namespace Prefix: | indb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Financing receivable with quality of loan based on weighted average FICO rating. + References No definition available. + Details
Name: | indb_FinancingReceivableWithQualityOfLoanBasedOnWeightedAverageFicoRating
Namespace Prefix: | indb_
Data Type: | xbrli:integerItemType
Balance Type: | na
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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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