Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) numberOfEntities	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of Reportable Segments | numberOfEntities	3
Segment Reporting Information [Line Items]
Net sales	$ 1,168,518	$ 888,788	$ 534,517
Gross profit	399,020	237,572	137,830
Total long-lived assets	381,721	317,322
Total intangible assets and goodwill	149,945	146,498
AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	897,919	663,845	463,845
AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	112,320	107,290	66,589
BasX
Segment Reporting Information [Line Items]
Net sales	158,279	117,653	4,083
Operating Segments | AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	897,919	663,845	463,845
Gross profit	320,067	172,983	126,868
Total long-lived assets	248,556	213,731
Total intangible assets and goodwill	10,282	3,229
Operating Segments | AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	112,320	107,290	66,589
Gross profit	29,324	33,311	10,075
Total long-lived assets	83,169	68,013
Total intangible assets and goodwill	0	0
Operating Segments | BasX
Segment Reporting Information [Line Items]
Net sales	158,279	117,653	4,083
Gross profit	49,629	31,278	887
Total long-lived assets	49,996	35,578
Total intangible assets and goodwill	139,663	143,269
Inter-segment sales | AAON Oklahoma
Segment Reporting Information [Line Items]
Net sales	4,324	3,251	2,504
Inter-segment sales | AAON Coil Products
Segment Reporting Information [Line Items]
Net sales	38,831	30,932	24,250
Inter-segment sales | BasX
Segment Reporting Information [Line Items]
Net sales	1,480	79	0
Eliminations
Segment Reporting Information [Line Items]
Net sales	$ (44,635)	$ (34,262)	$ (26,754)