Warranties - Warranty Expense by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Warranty expense	$ 16,727	$ 16,165	$ 8,497
AAON Oklahoma
Segment Reporting Information [Line Items]
Warranty expense	13,446	13,126	6,069
AAON Coil Products
Segment Reporting Information [Line Items]
Warranty expense	1,931	1,706	1,599
BasX
Segment Reporting Information [Line Items]
Warranty expense	$ 1,350	$ 1,333	$ 829