Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.22.1
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 25, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Registrant Name SPIRE GLOBAL, INC.    
Entity Central Index Key 0001816017    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Entity Public Float     $ 229,540,000
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity File Number 001-39493    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 85-1276957    
Entity Address, Address Line One 8000 Towers Crescent Drive    
Entity Address, Address Line Two Suite 1100    
Entity Address, City or Town Vienna    
Entity Address, State or Province VA    
Entity Address, Postal Zip Code 22182    
City Area Code 202    
Local Phone Number 301-5127    
Document Annual Report true    
Document Transition Report false    
Auditor Firm ID 238    
Auditor Name PricewaterhouseCoopers LLP    
Auditor Location San Francisco, California    
Documents Incorporated by Reference [Text Block]

Portions of the registrant’s Definitive Proxy Statement relating to the 2022 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. Such Definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2021.

    
Common Class A [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   139,471,238  
Title of 12(b) Security Class A common stock, par value of $0.0001 per share    
Trading Symbol SPIR    
Security Exchange Name NYSE    
Common Class B [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   12,058,614  
Warrant [Member]      
Document Information [Line Items]      
Title of 12(b) Security Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share    
Trading Symbol SPIR.WS    
Security Exchange Name NYSE