Disaggregated Revenue Disclosures - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 322,054	$ 262,099
AAON Products
Disaggregation of Revenue [Line Items]
Net sales	189,493	234,181
BASX Products
Disaggregation of Revenue [Line Items]
Net sales	132,561	27,918
AAON Oklahoma
Disaggregation of Revenue [Line Items]
Net sales	161,838	210,140
AAON Oklahoma | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	161,838	210,140
AAON Oklahoma | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
AAON Coil Products
Disaggregation of Revenue [Line Items]
Net sales	94,023	24,247
AAON Coil Products | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	27,655	24,041
AAON Coil Products | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	66,368	206
BASX
Disaggregation of Revenue [Line Items]
Net sales	66,193	27,712
BASX | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
BASX | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	$ 66,193	$ 27,712