Warranties - Warranty Expense by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Provisions	$ 3,211	$ 3,398
AAON Oklahoma
Segment Reporting Information [Line Items]
Provisions	2,167	2,958
AAON Coil Products
Segment Reporting Information [Line Items]
Provisions	399	180
BasX
Segment Reporting Information [Line Items]
Provisions	$ 645	$ 260