v3.26.1
Cover - USD ($)
 12 Months Ended
Jan. 31, 2026
Jan. 31, 2024
Mar. 17, 2026
Jul. 31, 2025
Document Information [Line Items]        
Document Type 10-K      
Document Annual Report true      
Document Period End Date Jan. 31, 2026      
Current Fiscal Year End Date --01-31      
Document Fiscal Year Focus 2026      
Document Fiscal Period Focus FY      
Entity Central Index Key 0001836833      
Amendment Flag false      
Document Transition Report false      
Entity File Number 001-40166      
Entity Registrant Name Planet Labs PBC      
Entity Incorporation, State or Country Code DE      
Entity Tax Identification Number 85-4299396      
Entity Address, Address Line One 645 Harrison Street      
Entity Address, Address Line Two Floor 4      
Entity Address, City or Town San Francisco      
Entity Address, State or Province CA      
Entity Address, Postal Zip Code 94107      
City Area Code 415      
Local Phone Number 829-3313      
Entity Well-known Seasoned Issuer Yes      
Entity Voluntary Filers No      
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      
ICFR Auditor Attestation Flag true      
Document Financial Statement Error Correction [Flag] false      
Entity Shell Company false      
Entity Public Float       $ 1,562,830,913
Documents Incorporated by Reference [Text Block]

Portions of the registrant’s definitive proxy statement for its 2026 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days of January 31, 2026, are incorporated by reference into Part III of this Annual Report on Form 10-K.

      
Auditor Firm ID 185 42    
Auditor Name KPMG LLP Ernst & Young LLP    
Auditor Location San Francisco, California San Jose, California    
Class A common stock        
Document Information [Line Items]        
Title of 12(b) Security Class A common stock, par value $0.0001 per share      
Trading Symbol PL      
Security Exchange Name NYSE      
Entity Common Stock, Shares Outstanding     322,655,231  
Warrant        
Document Information [Line Items]        
Title of 12(b) Security Warrants to purchase Class A common stock, at an exercise price of $11.50 per share      
Trading Symbol PL WS      
Security Exchange Name NYSE      
Common Class B        
Document Information [Line Items]        
Entity Common Stock, Shares Outstanding     23,493,796