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v3.26.1

Commitments and Contingencies - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2027 USD ($) | Oct. 01, 2025 USD ($) ft²
Other Commitments [Line Items] |  |
Operating lease, leased area | ft² |  | 198,000
Lease incentives |  | $ 33
Forecast |  |
Other Commitments [Line Items] |  |
Lease incentives, expects to be utilized during future period | $ 18 |

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- Definition Lessee, Operating Lease, Lease Incentives + References No definition available. + Details
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Namespace Prefix: | spsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Lessee, Operating Lease, Lease Incentives Utilized + References No definition available. + Details
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Namespace Prefix: | spsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Lessee, Operating Lease, Leased Area + References No definition available. + Details
Name: | spsc_LesseeOperatingLeaseLeasedArea
Namespace Prefix: | spsc_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

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- 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_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |