Segments - Long-lived Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 567,028	$ 525,792
Operating Segments | AAON Oklahoma
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	337,104	321,597
Operating Segments | AAON Coil Products
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	145,046	122,515
Operating Segments | BasX
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 84,878	$ 81,680