v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-33117  
Entity Registrant Name GLOBALSTAR, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 41-2116508  
Entity Address, Address Line One 1351 Holiday Square Blvd.  
Entity Address, City or Town Covington  
Entity Address, State or Province LA  
Entity Address, Postal Zip Code 70433  
City Area Code 985  
Local Phone Number 335-1500  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol GSAT  
Security Exchange Name NASDAQ  
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  
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001366868  
Current Fiscal Year End Date --12-31  
Voting Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   129,563,390
Preferred Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   149,425