Markforged Holding Corporation Quarterly report pursuant to Section 13 or 15(d)

Convertible Preferred Stock, Common Stock and Stockholders' Equity (Deficit) - Summary of Common Stock Reserved for Future Issuance (Detail) - shares	Mar. 31, 2023	Dec. 31, 2022
Schedule for Common Stock Reserved for Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance	74,590,938	64,015,895
Common stock options outstanding and unvested RSU [Member]
Schedule for Common Stock Reserved for Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance	21,640,031	22,962,929
Shares available for issuance under the 2021 plan [Member]
Schedule for Common Stock Reserved for Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance	34,520,368	24,568,036
Common stock warrants outstanding [Member]
Schedule for Common Stock Reserved for Future Issuance [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 for Common Stock Reserved for Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance	1,400,000	1,400,000
Employee Stock Purchase Plan [Member]
Schedule for Common Stock Reserved for Future Issuance [Line Items]
Total shares of authorized common stock reserved for future issuance	8,505,539	6,559,930