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Document and Entity Information
Jun. 05, 2025
Cover [Abstract]  
Entity Registrant Name PARSONS CORP
Amendment Flag false
Entity Central Index Key 0000275880
Document Type 8-K
Document Period End Date Jun. 05, 2025
Entity Incorporation State Country Code DE
Entity File Number 001-07782
Entity Tax Identification Number 95-3232481
Entity Address, Address Line One 14291 Park Meadow Drive
Entity Address, Address Line Two Suite 100
Entity Address, City or Town Chantilly
Entity Address, State or Province VA
Entity Address, Postal Zip Code 20151
City Area Code (703)
Local Phone Number 988-8500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $1 par value
Trading Symbol PSN
Security Exchange Name NYSE
Entity Emerging Growth Company false