Contract Assets and Liabilities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue recognized	$ 1.6	$ 5.2

Contract with Customer, Liability, Revenue Recognized Including Opening Balance

No definition available.

Name:	aaon_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance
Namespace Prefix:	aaon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration