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v3.25.1

Service Revenue (Summary of PEO Pass-Through Costs Netted in Revenue) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2025 | Feb. 29, 2024 | Feb. 28, 2025 | Feb. 29, 2024
Revenue from Contract with Customer [Abstract] |  |  |  |
Payroll wages and payroll taxes | $ 7,783.0 | $ 7,317.0 | $ 21,836.6 | $ 20,378.5
State unemployment insurance (included in payroll wages and payroll taxes) | 81.5 | 78.0 | 127.9 | 116.3
Guaranteed cost benefit plans | $ 172.6 | $ 165.6 | $ 505.9 | $ 499.4

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- Definition Direct Pass Through Cost Guaranteed Cost Benefit Plans + References No definition available. + Details
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- Definition Direct Pass Through Cost Payroll Wages And Taxes Including Federal And State Unemployment Insurance + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Direct Pass Through Cost State Unemployment Insurance + References No definition available. + Details
Name: | payx_DirectPassThroughCostStateUnemploymentInsurance
Namespace Prefix: | payx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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