Spire Global, Inc. Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Additional Information (Detail)

v3.24.1.1.u2

Stock Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2024	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Stock Issued During Period, Value, Stock Options Exercised		$ 267
Proceeds from Stock Options Exercised		$ 267	$ 0
Number of options outstanding, Granted		0	0
Restricted Stock Units (RSUs)
Defined Benefit Plan Disclosure [Line Items]
Unrecognized stock-based compensation expense		$ 31,078
Unrecognized stock-based compensation expense, weighted-average recognition period		1 year 11 months 12 days
2021 Equity Incentive Plan
Defined Benefit Plan Disclosure [Line Items]
Number of shares issued under share-based payment arrangement	1,054,867	818,433
2021 ESPP
Defined Benefit Plan Disclosure [Line Items]
Number of shares issued under share-based payment arrangement	210,973	743,659

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