v3.26.1
Document and Entity Information
May 28, 2026
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001860160
Document Type 8-K
Document Period End Date May 28, 2026
Entity Registrant Name Firefly Aerospace Inc.
Entity Incorporation State Country Code DE
Entity File Number 001-42789
Entity Tax Identification Number 81-5194980
Entity Address, Address Line One 2203 Scottsdale Drive
Entity Address, City or Town Leander
Entity Address, State or Province TX
Entity Address, Postal Zip Code 78641
City Area Code (512)
Local Phone Number 893-5570
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common stock, par value $0.0001 per share
Trading Symbol FLY
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false