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Document And Entity Information
Nov. 01, 2023
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Nov. 01, 2023
Entity Registrant Name Parsons Corporation
Entity Central Index Key 0000275880
Entity Emerging Growth Company false
Securities Act File Number 001-07782
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 95-3232481
Entity Address, Address Line One 14291 Park Meadow Drive, 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
Title of 12(b) Security Common Stock, $1 par value
Trading Symbol PSN
Security Exchange Name NYSE
Former Address [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 5875 Trinity Parkway, #300
Entity Address, City or Town Centreville
Entity Address, State or Province VA
Entity Address, Postal Zip Code 21120