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

Summary of Significant Accounting Policies - Summary of Changes in Fair Value of the Derivative Warrant Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Teton acquisition contingent earnout liability	$ 900
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Teton acquisition contingent earnout liability	1,500
Contingent Earnout Liability [Member]
Summary of Significant Accounting Policies [Line Items]
Fair value, beginning balance	2,415	$ 59,722
Change in fair value	(1,036)	(57,307)
Fair value, ending balance	1,379	2,415
Private Placement Warrant Liability [Member]
Summary of Significant Accounting Policies [Line Items]
Fair value, beginning balance	661	2,646
Change in fair value	(472)	(1,985)
Fair value, ending balance	189	661
Teton Acquisition Contingent Earnout Liability [Member]
Summary of Significant Accounting Policies [Line Items]
Fair value, beginning balance	602	0
Change in fair value	898	500
Additions		1,602
Settlement of liability acquired as part of acquisitions		(1,500)
Fair value, ending balance	1,500	602
Total [Member]
Summary of Significant Accounting Policies [Line Items]
Fair value, beginning balance	3,678	62,368
Change in fair value	(610)	(58,792)
Additions		1,602
Settlement of liability acquired as part of acquisitions		(1,500)
Fair value, ending balance	$ 3,068	$ 3,678