Spire Global, Inc. Quarterly report [Sections 13 or 15(d)]

Nature of Business - Additional Information (Detail)

v3.25.3

Nature of Business - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	9 Months Ended
	Apr. 25, 2025	Mar. 12, 2025	Sep. 30, 2025	Sep. 30, 2025	Jun. 10, 2025
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net proceeds from Placement Agreement				$ 37,297
Adjustments in Litigation Settlement	$ 7,000
Proceeds from sale of a business	238,948
A&R L3Harris Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Payments for Legal Settlements	$ 17,000
Private Placement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Purchase price		$ 8
Net proceeds from Placement Agreement		$ 37,297
Common stock, Sale of stock		4,843,750
Pre-Funded warrants exercise price		$ 0.0001
Liquidated damages			$ 506	$ 506
Pre Funded Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Purchase price		$ 7.9999
Common stock, Sale of stock		156,250
Pre-Funded warrants exercise price		$ 0.0001
Common Class A \| Pre Funded Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Pre-Funded warrants exercise price					$ 0.0001

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