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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock Based Compensation - Additional Information (Detail)

v3.22.2.2

Stock Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Proceeds from exercise of stock options	$ 797	$ 1,065
Weighted average grant-date fair value	$ 0.95	$ 2.94
Employee Stock Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Purchase Price of Common Stock, Percent	85.00%
Restricted Stock Units (RSUs)
Defined Benefit Plan Disclosure [Line Items]
Weighted average grant-date fair value	$ 2.56
Unrecognized stock-based compensation expense	$ 33,294
Unrecognized stock-based compensation expense, weighted-average recognition period	2 years 4 months 13 days
Old Spire Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Stockholders Equity Note Stock Split Exchange Ratio	1.8282
2021 Equity Incentive Plan [Member] \| Employee Stock Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Share based compensation arrangement,Number of shares available for grant under the plan	2,936,128
2021 Equity Incentive Plan [Member] \| Restricted Stock Units (RSUs)
Defined Benefit Plan Disclosure [Line Items]
Share based compensation arrangement,Number of shares available for grant under the plan	6,906,349
2021 Equity Incentive Plan [Member] \| Common Class A [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of shares issued under share-based payment arrangement	23,951,000
Percentage of Outstanding Stock Maximum	5.00%

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