XML 73 R54.htm IDEA: XBRL DOCUMENT
v3.19.2

Loans, Allowance for Loan Losses and Credit Quality (Age Analysis of Past Due Financing Receivables) (Details) $ in Thousands | Jun. 30, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan
--- | --- | ---
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 389 |  | 400
Number of Loans 60-89 Days | loan |  | 49 |  | 56
Number of Loans 90 Days or More | loan |  | 107 |  | 110
Number of Loans Total Past Due | loan |  | 545 |  | 566
Principal Balance Total Past Due |  | $ 22,047 |  | $ 46,348
Current |  | 8,928,740 |  | 6,859,846
Total loans | [1] | 8,950,787 |  | 6,906,194
Recorded Investment >90 Days and Accruing |  | $ 2,328 |  | $ 5
Commercial and Industrial [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 1 |  | 0
Number of Loans 60-89 Days | loan |  | 0 |  | 4
Number of Loans 90 Days or More | loan |  | 4 |  | 11
Number of Loans Total Past Due | loan |  | 5 |  | 15
Principal Balance Total Past Due |  | $ 405 |  | $ 26,693
Current |  | 1,400,519 |  | 1,066,936
Total loans | [1] | 1,400,924 |  | 1,093,629
Recorded Investment >90 Days and Accruing |  | $ 0 |  | $ 0
Commercial Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 5 |  | 9
Number of Loans 60-89 Days | loan |  | 2 |  | 0
Number of Loans 90 Days or More | loan |  | 1 |  | 8
Number of Loans Total Past Due | loan |  | 8 |  | 17
Principal Balance Total Past Due |  | $ 1,070 |  | $ 3,877
Current |  | 4,056,996 |  | 3,247,371
Total loans | [1] | 4,058,066 |  | 3,251,248
Recorded Investment >90 Days and Accruing |  | $ 0 |  | $ 0
Construction Loans [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 2 |  | 1
Number of Loans 60-89 Days | loan |  | 0 |  | 0
Number of Loans 90 Days or More | loan |  | 0 |  | 1
Number of Loans Total Past Due | loan |  | 2 |  | 2
Principal Balance Total Past Due |  | $ 706 |  | $ 1,582
Current |  | 490,892 |  | 363,583
Total loans | [1] | 491,598 |  | 365,165
Recorded Investment >90 Days and Accruing |  | $ 0 |  | $ 0
Small Business [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 2 |  | 15
Number of Loans 60-89 Days | loan |  | 5 |  | 19
Number of Loans 90 Days or More | loan |  | 9 |  | 24
Number of Loans Total Past Due | loan |  | 16 |  | 58
Principal Balance Total Past Due |  | $ 285 |  | $ 755
Current |  | 173,642 |  | 163,921
Total loans | [1] | 173,927 |  | 164,676
Recorded Investment >90 Days and Accruing |  | $ 0 |  | $ 0
Residential Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 18 |  | 23
Number of Loans 60-89 Days | loan |  | 12 |  | 6
Number of Loans 90 Days or More | loan |  | 40 |  | 25
Number of Loans Total Past Due | loan |  | 70 |  | 54
Principal Balance Total Past Due |  | $ 13,944 |  | $ 8,389
Current |  | 1,641,238 |  | 914,905
Total loans | [1] | 1,655,182 |  | 923,294
Recorded Investment >90 Days and Accruing |  | $ 1,776 | [2] | $ 0
Consumer Home Equity [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan |  | 25 |  | 22
Number of Loans 60-89 Days | loan |  | 10 |  | 12
Number of Loans 90 Days or More | loan |  | 34 |  | 29
Number of Loans Total Past Due | loan |  | 69 |  | 63
Principal Balance Total Past Due |  | $ 5,242 |  | $ 4,849
Current |  | 1,139,257 |  | 1,087,235
Total loans | [1] | 1,144,499 |  | 1,092,084
Recorded Investment >90 Days and Accruing |  | $ 541 | [2] | $ 0
Consumer - Other [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Number of Loans 30-59 Days | loan | [3] | 336 |  | 330
Number of Loans 60-89 Days | loan | [3] | 20 |  | 15
Number of Loans 90 Days or More | loan | [3] | 19 |  | 12
Number of Loans Total Past Due | loan | [3] | 375 |  | 357
Principal Balance Total Past Due | [3] | $ 395 |  | $ 203
Current | [3] | 26,196 |  | 15,895
Total loans | [1],[3] | 26,591 |  | 16,098
Recorded Investment >90 Days and Accruing | [3] | 11 |  | 5
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 6,435 |  | 8,402
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 296 |  | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 637 |  | 1,627
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 706 |  | 1,271
Financial Asset, 30 to 59 Days Past Due [Member] | Small Business [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 51 |  | 506
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 3,306 |  | 3,486
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Home Equity [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 1,185 |  | 1,331
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer - Other [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due | [3] | 254 |  | 181
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 3,272 |  | 1,854
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 0 |  | 382
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 352 |  | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 0 |  | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Small Business [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 95 |  | 87
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 2,168 |  | 521
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Home Equity [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 618 |  | 855
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer - Other [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due | [3] | 39 |  | 9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 12,340 |  | 36,092
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 109 |  | 26,311
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 81 |  | 2,250
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 0 |  | 311
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Small Business [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 139 |  | 162
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Real Estate [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 8,470 |  | 4,382
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Home Equity [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due |  | 3,439 |  | 2,663
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer - Other [Member] |  |  |  |
Age Analysis of Past Due Financing Receivables |  |  |  |
Principal Balance Total Past Due | [3] | $ 102 |  | $ 13
[1] | The amount of net deferred costs on originated loans included in the ending balance was $7.9 million and $7.1 million at June 30, 2019 and December 31, 2018, respectively. Net unamortized discounts on acquired loans not deemed to be purchased credit impaired ("PCI") included in the ending balance was $29.8 million and $15.2 million at June 30, 2019 and December 31, 2018, respectively.
[2] | (1) Represents purchased credit impaired loans that are accruing interest due to expectations of future cash collections.
[3] | (2) Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

X
- Definition Number of financing receivables equal to greater than ninety days. + References No definition available. + Details
Name: | indb_NumberOfFinancingReceivablesEqualToGreaterThanNinetyDays
Namespace Prefix: | indb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of financing receivables sixty to eighty nine days past due. + References No definition available. + Details
Name: | indb_NumberOfFinancingReceivablesSixtyToEightyNineDaysPastDue
Namespace Prefix: | indb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Financing Receivables Thirty to Fifty Nine Days Past Due. + References No definition available. + Details
Name: | indb_NumberOfFinancingReceivablesThirtyToFiftyNineDaysPastDue
Namespace Prefix: | indb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of financing receivables total past due. + References No definition available. + Details
Name: | indb_NumberOfFinancingReceivablesTotalPastDue
Namespace Prefix: | indb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of financing receivable 90 days or more past due and still accruing. + 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 (c) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable not past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
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=us-gaap_ConstructionLoansMember
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_HomeEquityMember
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: |

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

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

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |