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

Equity Transactions (Additional Information) (Details)

Equity Transactions (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands						6 Months Ended
	Mar. 12, 2025	Mar. 21, 2024	Feb. 08, 2024	Feb. 04, 2024	Sep. 14, 2022	Jun. 30, 2025	Jun. 30, 2024	Jun. 10, 2025	Sep. 27, 2023
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from Issuance of Private Placement						$ 37,297
Proceeds from issuance of common stock under the Equity Distribution Agreement, net						$ 37,297	$ 37,881
Class of Warrant or Right, Outstanding									597,082
Private Placement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from Issuance of Private Placement	$ 37,297
Common stock, Sale of stock	4,843,750
Purchase price	$ 8
Blue Torch warrants exercise price	$ 0.0001
Pre Funded Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, Sale of stock	156,250
Purchase price	$ 7.9999
Blue Torch warrants exercise price	$ 0.0001
Securities Purchase Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Purchase price				$ 12
Securities Purchase Agreement Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Blue Torch warrants exercise price		$ 14.5
Securities Purchase Agreement Warrants \| Alliance Global Partners
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity Issuance Costs		$ 1,800
Placement Agency Agreement \| Alliance Global Partners
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cash fee payment percentage		6.00%
Cash Fee Equal of Gross Exercise Price		4.00%
Class A Common Stock [Member] \| Pre Funded Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Class of Warrant or Right, Outstanding								156,250
Blue Torch warrants exercise price								$ 0.0001
Class A Common Stock [Member] \| Equity Distribution Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, Sale of stock						2,200,000
Proceeds from issuance of common stock under the Equity Distribution Agreement, net						$ 7,900
Common stock shares were remaining						$ 76,800
Class A Common Stock [Member] \| Equity Distribution Agreement \| Canaccord Genuity LLC
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity aggregate offering price					$ 85,000
Class A Common Stock [Member] \| Securities Purchase Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, Sale of stock				833,333
Proceeds from issuance of common stock under the Equity Distribution Agreement, net			$ 9,825
Class A Common Stock [Member] \| 2024 Securities Purchase Agreement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, Sale of stock		2,142,858
Warrants of Stock, Sales of stock		2,142,858
Class A Common Stock [Member] \| Securities Purchase Agreement Warrants
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from issuance of common stock under the Equity Distribution Agreement, net		$ 28,056
Blue Torch warrants exercise price		$ 14