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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | The following tables show disaggregated net sales by reportable segment (Note 21) by major source, net of intercompany sales eliminations.
Segment | Brands Produced | Brand Products
AAON Oklahoma | AAON | Rooftop units and aftermarket parts
AAON Coil Products | AAON / BASX | Condensing units, air handling products, data center cooling solutions, and geothermal/water-source heat pumps
BASX | BASX | Data center cooling solutions, cleanroom products, and air handling products
| Three Months Ended September 30, 2025
| AAON Oklahoma |  | AAON Coil Products |  | BASX |  | Total
| (in thousands)
AAON Products | $ | 235,750 |  |  | $ | 23,700 |  |  | $ | — |  |  | $ | 259,450 |
BASX Products | 2,998 |  |  | 46,546 |  |  | 75,244 |  |  | 124,788 |
Total | $ | 238,748 |  |  | $ | 70,246 |  |  | $ | 75,244 |  |  | $ | 384,238 |
| Three Months Ended September 30, 2024
| AAON Oklahoma |  | AAON Coil Products |  | BASX |  | Total
| (in thousands)
AAON Products | $ | 228,887 |  |  | $ | 34,633 |  |  | $ | — |  |  | $ | 263,520 |
BASX Products | — |  |  | 599 |  |  | 63,133 |  |  | 63,732 |
Total | $ | 228,887 |  |  | $ | 35,232 |  |  | $ | 63,133 |  |  | $ | 327,252 |
| Nine Months Ended September 30, 2025
| AAON Oklahoma |  | AAON Coil Products |  | BASX |  | Total
| (in thousands)
AAON Products | $ | 582,708 |  |  | $ | 68,760 |  |  | $ | — |  |  | $ | 651,468 |
BASX Products | 2,998 |  |  | 153,974 |  |  | 209,419 |  |  | 366,391 |
Total | $ | 585,706 |  |  | $ | 222,734 |  |  | $ | 209,419 |  |  | $ | 1,017,859 |
| Nine Months Ended September 30, 2024
| AAON Oklahoma |  | AAON Coil Products |  | BASX |  | Total
| (in thousands)
AAON Products | $ | 664,754 |  |  | $ | 89,121 |  |  | $ | — |  |  | $ | 753,875 |
BASX Products | — |  |  | 1,731 |  |  | 147,311 |  |  | 149,042 |
Total | $ | 664,754 |  |  | $ | 90,852 |  |  | $ | 147,311 |  |  | $ | 902,917 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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