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v3.25.1

Assets Held for Sale (Additional Information) (Details) - USD ($) $ in Thousands | Apr. 25, 2025 | Nov. 13, 2024
--- | --- | ---
Long-Lived Assets Held-for-Sale [Line Items] |  |
Share Purchase Agreement | $ 233,500 | $ 233,500

X
- Definition Share Purchase Agreement + References No definition available. + Details
Name: | spir_SharePurchaseAgreement
Namespace Prefix: | spir_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LongLivedAssetsHeldForSaleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration