Disaggregated Revenue Disclosures - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 1,200,635	$ 1,168,518	$ 888,788
AAON Products
Disaggregation of Revenue [Line Items]
Net sales	975,642	1,001,992	771,135
BASX Products
Disaggregation of Revenue [Line Items]
Net sales	224,993	166,526	117,653
AAON Oklahoma
Disaggregation of Revenue [Line Items]
Net sales	858,711	897,919	663,845
AAON Oklahoma | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	858,711	897,919	663,845
AAON Oklahoma | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
AAON Coil Products
Disaggregation of Revenue [Line Items]
Net sales	143,871	112,320	107,290
AAON Coil Products | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	116,931	104,073	107,290
AAON Coil Products | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	26,940	8,247	0
BasX
Disaggregation of Revenue [Line Items]
Net sales	198,053	158,279	117,653
BasX | AAON Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
BasX | BASX Products
Disaggregation of Revenue [Line Items]
Net sales	$ 198,053	$ 158,279	$ 117,653