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Document and Entity Information
Mar. 20, 2025
Document And Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Mar. 20, 2025
Entity Registrant Name PARSONS CORPORATION
Entity Incorporation State Country Code DE
Entity File Number 001-07782
Entity Tax Identification Number 95-3232481
Entity Address Address Line 1 14291 Park Meadow Drive
Entity Address Address Line 2 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
Amendment Flag false
Entity Central Index Key 0000275880
Former Address [Member]  
Document And Entity Information [Line Items]  
Entity Address Address Line 1 5875 Trinity Parkway
Entity Address Address Line 2 #300
Entity Address City Or Town Centreville
Entity Address State Or Province VA
Entity Address Postal Zip Code 21120