v3.25.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Aug. 01, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Entity File Number 001-42520  
Entity Registrant Name KARMAN HOLDINGS INC.  
Entity Central Index Key 0002040127  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-2660232  
Entity Address, Address Line One 5351 Argosy Avenue  
Entity Address, City or Town Huntington Beach  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92649  
City Area Code 714  
Local Phone Number 898-9951  
Title of 12(b) Security Common Stock, $0.001 Par Value  
Trading Symbol KRMN  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Document Quarterly Report true  
Document Transition Report false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   132,322,435