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Loan Servicing | 9 Months Ended
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Sep. 30, 2023
Payments for (Proceeds from) Mortgage Servicing Rights [Abstract] |
Loan Servicing | Loan ServicingLoans serviced for others are not included in the accompanying condensed consolidated balance sheets. The unpaid principal balances of loans serviced for others totaled approximately $1.486 billion and $1.532 billion at September 30, 2023 and December 31, 2022. Comparable market values and a valuation model that calculates the present value of future cash flows were used to estimate fair value. For purposes of measuring impairment, risk characteristics including product type, investor type and interest rates were used to stratify the originated mortgage servicing rights. Mortgage servicing rights are included in other assets on the balance sheets as of September 30, 2023 and December 31, 2022.
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30, |  | September 30, |  | September 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Mortgage servicing rights |  |  |  |  |  |  |
Balance, beginning of period | $ | 18,507 |  |  | $ | 18,761 |  |  | $ | 18,619 |  |  | $ | 17,780 |
Servicing rights capitalized | 428 |  |  | 567 |  |  | 863 |  |  | 2,942 |
Amortization of servicing rights | (285) |  |  | (624) |  |  | (832) |  |  | (2,018) |
Balance, end of period | 18,650 |  |  | 18,704 |  |  | 18,650 |  |  | 18,704 |
Impairment allowance |  |  |  |  |  |  |
Balance, beginning of period | — |  |  | — |  |  | — |  |  | (2,594) |
Additions | — |  |  | — |  |  | — |  |  | — |
Reductions | — |  |  | — |  |  | — |  |  | 2,594 |
Balance, end of period | — |  |  | — |  |  | — |  |  | — |
Mortgage servicing rights, net | $ | 18,650 |  |  | $ | 18,704 |  |  | $ | 18,650 |  |  | $ | 18,704 |
Fair value, beginning of period | $ | 19,659 |  |  | $ | 18,761 |  |  | $ | 18,619 |  |  | $ | 15,186 |
Fair value, end of period | 19,571 |  |  | 18,704 |  |  | 19,571 |  |  | 18,704 |

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- Definition Loan servicing. + References No definition available. + Details
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Namespace Prefix: | hbnc_
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Balance Type: | na
Period Type: | duration

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