Segments - Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Intangible assets, net and goodwill	$ 160,613	$ 160,152
Operating Segments | AAON Oklahoma
Segment Reporting Information [Line Items]
Intangible assets, net and goodwill	24,302	22,966
Operating Segments | AAON Coil Products
Segment Reporting Information [Line Items]
Intangible assets, net and goodwill	0	0
Operating Segments | BasX
Segment Reporting Information [Line Items]
Intangible assets, net and goodwill	$ 136,311	$ 137,186