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Securities - Additional Information (Detail)	Sep. 30, 2016 USD ($)
Amortized Cost and Fair Value Debt Securities [Abstract]
Unrealized loss, other than temporary securities	$ 0

X

- Definition

Amortized Cost and Fair Value Debt Securities [Abstract]

+ References

No definition available.

+ Details

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Namespace Prefix:	hbnc_
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X

- Definition

Total of accumulated other comprehensive loss related to that portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized either as available-for-sale or held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580

+ Details

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