Description of Operations |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Description Of Operations Disclosure [Abstract] | |
| Description of Operations | 1. Description of Operations Organization Parsons Corporation, a Delaware corporation, and its subsidiaries (collectively, the “Company”) provide sophisticated design, engineering and technical services, and smart and agile software to the United States federal government and Critical Infrastructure customers worldwide. The Company performs work in various foreign countries through local subsidiaries, joint ventures and foreign offices maintained to carry out specific projects. |