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v3.25.4

Employee Benefits - Schedule of Employee Medical Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Retirement Benefits [Abstract] |  |  |
Medical premium payments | $ 25,141 | $ 18,471 | $ 14,759
Health saving account contributions | $ 11,711 | $ 9,248 | $ 4,961

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- Definition Defined Benefit Plan, Heath Saving Account Payments + References No definition available. + Details
Name: | aaon_DefinedBenefitPlanHeathSavingAccountPayments
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Defined Benefit Plan, Medical Claim Payments + References No definition available. + Details
Name: | aaon_DefinedBenefitPlanMedicalClaimPayments
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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