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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2025
Revenue from Contracts with Customers |
Schedule of disaggregated revenue | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Remainder of | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2025 |  | 2026 |  | 2027 |  | 2028 | ​ | Total
Engineering |  | $ | 68,446 |  | $ | 44,173 |  | $ | 6,766 |  | $ | — | ​ | $ | 119,385
Other | ​ | ​ | 49 | ​ | ​ | 97 | ​ | ​ | 97 | ​ | ​ | 97 | ​ | ​ | 340
Total remaining performance obligations | ​ | $ | 68,495 | ​ | $ | 44,270 | ​ | $ | 6,863 | ​ | $ | 97 | ​ | $ | 119,725
​

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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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