Basic and Diluted Net Loss per Share - Narrative (Details)	3 Months Ended
Mar. 31, 2022 shares
Maximum \| JAWS Spitfire \| Eligible Velo3D Equityholders
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares that the holders may receive (in shares)	21,758,148

Number of shares of equity interests issued or issuable to acquire entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Name:	us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration