Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.21.2
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2021
Jul. 23, 2021
Entity Listings [Line Items]    
Entity Registrant Name FORTISTAR SUSTAINABLE SOLUTIONS CORP.  
Entity Central Index Key 0001822862  
Current Fiscal Year End Date --12-31  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q1  
Entity Address, State or Province NJ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company true  
Class A Common Stock [Member]    
Entity Listings [Line Items]    
Entity Common Stock, Shares Outstanding   25,875,000
Class B Common Stock [Member]    
Entity Listings [Line Items]    
Entity Common Stock, Shares Outstanding   6,468,750