Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 242,605	$ 138,571	$ 634,190	$ 398,235
Gross Profit	65,591	36,019	159,031	111,283
Long-lived assets	301,638		301,638		$ 275,036
Goodwill	147,399		147,399		155,848
AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	179,169	122,136	476,517	348,378
AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	30,504	16,435	79,193	49,857
BasX
Segment Reporting Information [Line Items]
Net Sales	32,932	0	78,480	0
Operating Segments | AAON Oklahoma
Segment Reporting Information [Line Items]
Gross Profit	45,643	31,730	111,216	99,725
Long-lived assets	198,737		198,737		183,840
Goodwill	3,229		3,229		3,229
Operating Segments | AAON Coil Products
Segment Reporting Information [Line Items]
Gross Profit	10,564	4,289	26,344	11,558
Long-lived assets	67,151		67,151		62,534
Goodwill	0		0		0
Operating Segments | BasX
Segment Reporting Information [Line Items]
Gross Profit	9,384	0	21,471	0
Long-lived assets	35,750		35,750		28,662
Goodwill	144,170		144,170		$ 152,619
Inter-segment | AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	998	817	2,157	2,026
Inter-segment | AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	8,037	5,508	24,047	16,979
Inter-segment | BasX
Segment Reporting Information [Line Items]
Net Sales	61	0	61	0
Segment Reconciling Items | AAON Oklahoma
Segment Reporting Information [Line Items]
Net Sales	179,169	122,136	476,517	348,378
Segment Reconciling Items | AAON Coil Products
Segment Reporting Information [Line Items]
Net Sales	30,504	16,435	79,193	49,857
Segment Reconciling Items | BasX
Segment Reporting Information [Line Items]
Net Sales	32,932	0	78,480	0
Consolidation, Eliminations
Segment Reporting Information [Line Items]
Net Sales	$ (9,096)	$ (6,325)	$ (26,265)	$ (19,005)