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Regulatory Capital - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2014 Category
Regulated Operations [Abstract] |
Number of capital categories defined in regulation | 5 hbnc_NumberOfCapitalCategoriesDefinedInRegulation

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- Definition Number of capital categories defined in the regulation. + References No definition available. + Details
Name: | hbnc_NumberOfCapitalCategoriesDefinedInRegulation
Namespace Prefix: | hbnc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration