Quarterly report pursuant to Section 13 or 15(d)

Merger and Reverse Recapitalization - Schedule of Common Stock Issued Following Consummation of Merger (Parenthetical) (Details)

v3.21.2
Merger and Reverse Recapitalization - Schedule of Common Stock Issued Following Consummation of Merger (Parenthetical) (Details) - shares
 9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Aug. 20, 2020
Business Acquisition [Line Items]      
Common stock of one, outstanding prior to Merger 185,697,959 39,510,108 5,220,000
Contingently forfeitable shares 2,610,000    
Conversion of legacy markforged shares 151,005,831    
Class A Shareholders      
Business Acquisition [Line Items]      
Common stock of one, outstanding prior to Merger 15,081,333    
Class B Shareholders      
Business Acquisition [Line Items]      
Common stock of one, outstanding prior to Merger 5,375,000