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Stockholders' Equity - Narrative (Details) - USD ($) $ in Millions	Feb. 10, 2026	Oct. 29, 2025
Equity [Abstract]
Share repurchase program, additional authorized amount	$ 200.0
Share repurchase program, authorized amount	$ 300.0	$ 100.0

X

- Definition

Stock Repurchase Program, Additional Authorized Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	spsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

+ Details

Name:	srt_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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