v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
May 01, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-40031  
Entity Registrant Name BigBear.ai Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-4164597  
Entity Address, Address Line One 7950 Jones Branch Drive  
Entity Address, Address Line Two 1st Floor North Tower  
Entity Address, City or Town McLean  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 22102  
City Area Code 410  
Local Phone Number 312-0885  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   478,949,450
Entity Central Index Key 0001836981  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Common stock    
Document Information [Line Items]    
Title of 12(b) Security Common stock, $0.0001 par value  
Trading Symbol BBAI  
Security Exchange Name NYSE  
Redeemable warrants, each full warrant exercisable for one share of common stock at an exercise price of $11.50 per share    
Document Information [Line Items]    
Title of 12(b) Security Redeemable warrants, each full warrant exercisable for one share of common stock at an exercise price of $11.50 per share  
Trading Symbol BBAI.WS  
Security Exchange Name NYSE