XML 70 R55.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Nature of Operations and Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives for Book Purposes (Detail) | Dec. 31, 2023
--- | ---
Bank premises | Minimum |
Property Plant And Equipment Estimated Useful Lives [Line Items] |
Useful lives | 15 years
Bank premises | Maximum |
Property Plant And Equipment Estimated Useful Lives [Line Items] |
Useful lives | 40 years
Furniture, fixtures, and equipment | Minimum |
Property Plant And Equipment Estimated Useful Lives [Line Items] |
Useful lives | 3 years
Furniture, fixtures, and equipment | Maximum |
Property Plant And Equipment Estimated Useful Lives [Line Items] |
Useful lives | 15 years

X
- Definition Property Plant And Equipment Estimated Useful Lives [Line Items] + References No definition available. + Details
Name: | homb_PropertyPlantAndEquipmentEstimatedUsefulLivesLineItems
Namespace Prefix: | homb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |