XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.21.2

Acquisitions (Details) - TCF National Bank $ in Millions | May 25, 2021 USD ($) numberOfBusiness
--- | ---
Asset Acquisition [Line Items] |
Number of businesses acquired | numberOfBusiness | 14
Deposits | $ 976
Loans | $ 278

X
- Definition Business acquisition purchase price allocation of deposits. + References No definition available. + Details
Name: | hbnc_BusinessAcquisitionPurchasePriceAllocationDeposits
Namespace Prefix: | hbnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business acquisition purchase price allocation loans. + References No definition available. + Details
Name: | hbnc_BusinessAcquisitionPurchasePriceAllocationLoans
Namespace Prefix: | hbnc_
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_AssetAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
Name: | us-gaap_NumberOfBusinessesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=hbnc_TCFNationalBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |