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Leases - Additional Information (Details) - squareFoot | Sep. 30, 2022 | Sep. 29, 2022
--- | --- | ---
Industrial Property |  |
Lessee, Lease, Description [Line Items] |  |
Number of square feet | 31,000 |
Office Building |  |
Lessee, Lease, Description [Line Items] |  |
Number of square feet | 4,000 |
MISSOURI |  |
Lessee, Lease, Description [Line Items] |  |
Number of square feet | 86,000 | 51,000

X
- Definition Number Of Square Feet in Lease Agreement + References No definition available. + Details
Name: | aaon_NumberOfSquareFeetInLeaseAgreement
Namespace Prefix: | aaon_
Data Type: | xbrli:integerItemType
Balance Type: | na
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_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_IndustrialPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_OfficeBuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_MO
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |