XML 90 R72.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Fair Value Measurements (Details 3) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
ASSETS |  |
Held-to-maturity Securities | $ 430,763 | $ 477,507
Held to Maturity, Fair Value, Total | 441,834 | 478,749
Loans, net of allowance for loan losses(b) | 5,687,928 | 5,491,896
LIABILITIES |  |
Federal Home Loan Bank borrowings(c) | 50,826 | 102,080
Customer Repurchase Agreements and other short-term borrowings | 140,914 | 133,958
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust | 73,157 | 73,306
Subordinated Debt | 34,624 | 34,589
Time certificates of deposits(c) |  |
LIABILITIES |  |
Time certificates of deposits(c) | 629,071 | 684,830
Accrued Liabilities, Fair Value Disclosure | 631,043 | 684,370
Federal Home Loan Bank borrowings(c) |  |
LIABILITIES |  |
Federal Home Loan Bank borrowings(c) | 50,826 | 102,080
Accrued Liabilities, Fair Value Disclosure | 51,172 | 102,396
Customer repurchase agreements and other short-term borrowings(c) |  |
LIABILITIES |  |
Customer Repurchase Agreements and other short-term borrowings | 140,914 | 133,958
Accrued Liabilities, Fair Value Disclosure | 140,914 | 133,958
Junior subordinated debentures(d) |  |
LIABILITIES |  |
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust | 73,157 | 73,306
Accrued Liabilities, Fair Value Disclosure | 75,993 | 73,871
Subordinated debentures(c) |  |
LIABILITIES |  |
Subordinated Debt | 34,624 | 34,589
Accrued Liabilities, Fair Value Disclosure | 35,222 | 34,370
Significant Other Observable Inputs (Level 2) | Time certificates of deposits(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 631,043 | 684,370
Significant Other Observable Inputs (Level 2) | Federal Home Loan Bank borrowings(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 51,172 | 102,396
Significant Other Observable Inputs (Level 2) | Junior subordinated debentures(d) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 75,993 | 73,871
Significant Unobservable Inputs (Level 3) | Customer repurchase agreements and other short-term borrowings(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 140,914 | 133,958
Significant Unobservable Inputs (Level 3) | Subordinated debentures(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 35,222 | 34,370
U.S. Treasury securities |  |
ASSETS |  |
Held-to-maturity Securities | 1,008 | 1,009
Held to Maturity, Fair Value, Total | 1,089 | 1,064
U.S. Treasury securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 1,089 | 1,064
Agency mortgage-backed securities |  |
ASSETS |  |
Held-to-maturity Securities | 148,822 | 167,134
Held to Maturity, Fair Value, Total | 155,131 | 170,375
Agency mortgage-backed securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 155,131 | 170,375
Agency collateralized mortgage obligations |  |
ASSETS |  |
Held-to-maturity Securities | 246,744 | 267,348
Held to Maturity, Fair Value, Total | 250,260 | 264,891
Agency collateralized mortgage obligations | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 250,260 | 264,891
State, county, and municipal securities |  |
ASSETS |  |
Held-to-maturity Securities |  | 225
Held to Maturity, Fair Value, Total |  | 227
State, county, and municipal securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total |  | 227
Single issuer trust preferred securities issued by banks |  |
ASSETS |  |
Held-to-maturity Securities | 1,500 | 1,500
Held to Maturity, Fair Value, Total | 1,547 | 1,522
Single issuer trust preferred securities issued by banks | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 1,547 | 1,522
Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Held-to-maturity Securities | 32,689 | 35,291
Held to Maturity, Fair Value, Total | 33,807 | 35,664
Small Business Administration Pooled Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 0 | 0
Small Business Administration Pooled Securities [Member] | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 33,807 | 35,664
Small Business Administration Pooled Securities [Member] | Significant Unobservable Inputs (Level 3) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 0 | 0
Corporate debt securities |  |
ASSETS |  |
Held-to-maturity Securities |  | 5,000
Held to Maturity, Fair Value, Total |  | 5,006
Corporate debt securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total |  | 5,006
Loans, net of allowance for loan losses(b) |  |
ASSETS |  |
Loans, net of allowance for loan losses(b) | 5,684,872 | 5,487,298
Loans Receivable, Fair Value Disclosure | 5,622,922 | 5,417,425
Loans, net of allowance for loan losses(b) | Significant Unobservable Inputs (Level 3) |  |
ASSETS |  |
Loans Receivable, Fair Value Disclosure | $ 5,622,922 | $ 5,417,425

X
- Definition Customer Repurchase Agreements and other short-term borrowings + References No definition available. + Details
Name: | indb_CustomerRepurchaseAgreementsandothershorttermborrowings
Namespace Prefix: | indb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financial liabilities book value. + References No definition available. + Details
Name: | indb_FinancialLiabilitiesBookValue
Namespace Prefix: | indb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of accrued expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccruedLiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
Name: | us-gaap_AdvancesFromFederalHomeLoanBanks
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.6) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_HeldToMaturitySecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 + Details
Name: | us-gaap_LoansReceivableFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_SubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_FederalHomeLoanBankAdvancesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=indb_CustomerRepurchaseAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_JuniorSubordinatedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_SubordinatedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CollateralizedMortgageObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=indb_SingleIssuerTrustPreferredSecuritiesIssuedByBanksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=indb_SmallBusinessAdministrationPooledSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=indb_LoansNetOfAllowanceForLoanLosesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |