Markforged Holding Corporation Annual report pursuant to Section 13 and 15(d)

Convertible Preferred Stock, Common Stock and Stockholders' Equity Deficit - Summary of Common Stock Reserved for Future Issuance (Detail) - shares	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	64,015,895	56,394,803
Common stock options outstanding and unvested RSU [Member]
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	22,962,929	20,267,035
Shares available for issuance under the 2021 plan [Member]
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	24,568,036	21,502,768
Common stock warrants outstanding [Member]
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	8,525,000	8,525,000
Shares available for issuance as Earnout RSU [Member]
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	1,400,000	1,400,000
Employee Stock Purchase Plan [Member]
Schedule Of Convertible Preferred Stock [Line Items]
Total shares of authorized common stock reserved for future issuance	6,559,930	4,700,000