Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 01, 2020
Document and Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Registrant Name	Globalstar, Inc.
Entity Central Index Key	0001366868
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Current Reporting Status	Yes
Voting Common Stock
Document and Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		1,668,657,568
Nonvoting Common Stock
Document and Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		0