Spire Global, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Fair Value Measurement - Additional Information (Details)

Fair Value Measurement - Additional Information (Details) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Mar. 21, 2024 USD ($) $ / shares shares	Dec. 19, 2022 USD ($) shares	Nov. 30, 2022 $ / shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Sep. 27, 2023 $ / shares shares	Jan. 04, 2023 shares	Jun. 13, 2022 $ / shares shares
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants Liabilities settled for cash \| $				$ 5,254	$ 1,597
Class of Warrant or Right, Outstanding \| shares						597,082
Warrant exercise price						$ 5.44
Offering totaled \| $				$ 0	$ 7,866
Common Class A [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares							34,728
Convertible Common Stock [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares							192,936
Securities Purchase Agreement Warrants
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price	$ 14.5
Securities Purchase Agreement Warrants \| Common Class A [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares	2,142,858
Warrant exercise price	$ 14			$ 14.5
Initial Public Offering Shares \| shares	2,142,858
Offering totaled \| $	$ 30,000
Public Warrants
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares		34,728
Warrant exercise price				$ 92
Class of warrants or right issued during the period \| shares				1,437,499
Private Placement Warrants
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of warrants or right issued during the period \| shares				825,000
Public and Private Placement Warrants [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants sold \| $		$ 2,069,561
Public and Private Placement Warrants [Member] \| Common Class A [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price			$ 0.18
Shares, Issued \| shares		413,910
Share Price			$ 0.2
Public and Private Placement Warrants [Member] \| Warrant Amendment Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrants exchange ratio			0.10
Warrants outstanding			65.00%
Warrant to urgent capital llc [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares								24,834
Warrant exercise price								$ 16.08
Warrant to urgent capital llc [Member] \| Common Class A [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares				24,834
Warrant exercise price				$ 16.08
Blue Torch Warrants [Member] \| Common Class A [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares						597,082		437,024
Warrant exercise price						$ 5.44		$ 16.08
Blue Torch Warrants [Member] \| Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price						16.08
Blue Torch Warrants [Member] \| Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price						5.44
2022 Blue Torch Warrants
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Class of Warrant or Right, Outstanding \| shares								437,024
Warrant exercise price								$ 16.08
2022 Blue Torch Warrants \| Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price						16.08
2022 Blue Torch Warrants \| Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Warrant exercise price						$ 5.44