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Commitments and Contingencies (Details) - Subsequent Event - USD ($) $ in Millions | May 02, 2022 | Apr. 17, 2022
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Subsequent Event [Line Items] |  |
Contractual obligation |  | $ 6.5
Period |  | 18 months
Payments | $ 1.0 |

X
- Definition Contractual Obligation, Period + References No definition available. + Details
Name: | aaon_ContractualObligationPeriod
Namespace Prefix: | aaon_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payment for Contractual Obligation + References No definition available. + Details
Name: | aaon_PaymentForContractualObligation
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |