Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) numberOfEntities	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting [Abstract]
Number of Reportable Segments | numberOfEntities	3
Segment Reporting Information [Line Items]
Net sales	$ 1,200,635	$ 1,168,518	$ 888,788
Cost of sales	803,526	769,498	651,216
Gross profit	397,109	399,020	237,572
Selling, general and administrative expenses	188,014	171,539	110,823
Add: Gain on disposal of assets	(23)	(13)	(12)
Income from operations	209,118	227,494	126,761
AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	858,711	897,919	663,845
Cost of sales	556,305	577,852	490,862
Gross profit	302,406	320,067	172,983
AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	143,871	112,320	107,290
Cost of sales	98,106	82,996	73,979
Gross profit	45,765	29,324	33,311
BasX
Segment Reporting Information [Line Items]
Net sales	198,053	158,279	117,653
Cost of sales	149,115	108,650	86,375
Gross profit	48,938	49,629	31,278
Operating Segments | AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	858,711	897,919	663,845
Operating Segments | AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	143,871	112,320	107,290
Operating Segments | BasX
Segment Reporting Information [Line Items]
Net sales	198,053	158,279	117,653
Inter-segment sales | AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	(6,336)	(4,324)	(3,251)
Inter-segment sales | AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	(38,373)	(38,831)	(30,932)
Inter-segment sales | BasX
Segment Reporting Information [Line Items]
Net sales	(666)	(1,480)	(79)
Eliminations | AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	(6,336)	(4,324)	(3,251)
Eliminations | AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	(38,373)	(38,831)	(30,932)
Eliminations | BasX
Segment Reporting Information [Line Items]
Net sales	$ (666)	$ (1,480)	$ (79)