Equity Transactions (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended
	Mar. 12, 2025	Apr. 30, 2026	Mar. 31, 2026	Mar. 31, 2025	Jun. 10, 2025
Class of Warrant or Right [Line Items]
Proceeds from Issuance of Private Placement		$ 65,500
Proceeds from issuance of common stock under the Equity Distribution Agreement, net			$ 0	$ 37,297
Private Placement Warrants
Class of Warrant or Right [Line Items]
Common stock, Sale of stock	4,843,750
Purchase price	$ 8
Warrants exercise price per share	$ 0.0001
Private Placement
Class of Warrant or Right [Line Items]
Proceeds from Issuance of Private Placement	$ 37,300
Common stock, Sale of stock	4,843,750
Purchase price	$ 8
Pre Funded Warrants
Class of Warrant or Right [Line Items]
Common stock, Sale of stock	156,250
Purchase price	$ 7.9999
Warrants exercise price per share	$ 0.0001
Class A Common Stock [Member]
Class of Warrant or Right [Line Items]
Warrants exercise price per share					$ 0.0001
Class A Common Stock [Member] \| Pre Funded Warrants
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding					156,250

Spire Global, Inc. 10-Q