XML 79 R69.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Repurchase Agreements - Summary of Repurchase Agreements Accounted as Secured Borrowings (Detail) $ in Thousands | Sep. 30, 2017 USD ($)
--- | ---
Assets Sold under Agreements to Repurchase [Line Items] |
Repurchase Agreements | $ 63,081
Securities pledged for Repurchase Agreements, Total | 79,216
Federal Agency Collateralized Mortgage Obligations [Member] |
Assets Sold under Agreements to Repurchase [Line Items] |
Securities pledged for Repurchase Agreements, Total | 40,740
Federal Agency Mortgage-backed Pools [Member] |
Assets Sold under Agreements to Repurchase [Line Items] |
Securities pledged for Repurchase Agreements, Total | 38,476
Remaining Contractual Maturity of the Agreements, Overnight and Continuous [Member] |
Assets Sold under Agreements to Repurchase [Line Items] |
Repurchase Agreements | 63,081
Securities pledged for Repurchase Agreements, Total | 79,216
Remaining Contractual Maturity of the Agreements, Overnight and Continuous [Member] | Federal Agency Collateralized Mortgage Obligations [Member] |
Assets Sold under Agreements to Repurchase [Line Items] |
Securities pledged for Repurchase Agreements, Total | 40,740
Remaining Contractual Maturity of the Agreements, Overnight and Continuous [Member] | Federal Agency Mortgage-backed Pools [Member] |
Assets Sold under Agreements to Repurchase [Line Items] |
Securities pledged for Repurchase Agreements, Total | $ 38,476

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_AssetsSoldUnderAgreementsToRepurchaseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 10 -Section 55 -Paragraph 51 -URI http://asc.fasb.org/extlink&oid=77903054&loc=d3e101761-111710 + Details
Name: | us-gaap_SecuredDebtRepurchaseAgreements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before effects of master netting arrangements, of securities loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_SecuritiesLoanedGrossIncludingNotSubjectToMasterNettingArrangement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=hbnc_FederalAgencyCollateralizedMortgageObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=us-gaap_MaturityOvernightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |