Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 208,814	$ 143,876	$ 391,585	$ 259,664
Gross Profit	47,376	42,107	93,440	75,264
Long-lived assets	298,350		298,350		$ 275,036
Goodwill	148,301		148,301		155,848
AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	157,481	126,266	297,348	226,242
AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	26,754	17,610	48,689	33,422
BasX
Segment Reporting Information [Line Items]
Net Sales	24,579	0	45,548	0
Operating Segments | AAON Oklahoma
Segment Reporting Information [Line Items]
Gross Profit	31,737	38,223	65,573	67,995
Long-lived assets	197,428		197,428		183,840
Goodwill	3,229		3,229		3,229
Operating Segments | AAON Coil Products
Segment Reporting Information [Line Items]
Gross Profit	8,474	3,884	15,780	7,269
Long-lived assets	65,485		65,485		62,534
Goodwill	0		0		0
Operating Segments | BasX
Segment Reporting Information [Line Items]
Net Sales	24,579	0	45,548	0
Gross Profit	7,165	0	12,087	0
Long-lived assets	35,437		35,437		28,662
Goodwill	145,072		145,072		$ 152,619
Inter-segment | AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	770	703	1,159	1,209
Inter-segment | AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	8,093	6,087	16,010	11,471
Segment Reconciling Items | AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	157,481	126,266	297,348	226,242
Segment Reconciling Items | AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	26,754	17,610	48,689	33,422
Consolidation, Eliminations
Segment Reporting Information [Line Items]
Net Sales	$ (8,863)	$ (6,790)	$ (17,169)	$ (12,680)