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v3.22.2

Stock-Based Compensation - Summary of Nonvested Restricted Stock Awards and PSU Activity (Parenthetical) (Detail) | 6 Months Ended
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Jun. 30, 2022 shares
Performance-Based Restricted Stock Units [Member] | Maximum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
Units that could be awarded based upon relative TSR over applicable performance periods. | 194,478

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- Definition Units that could be awarded based upon relative TSR over applicable performance periods. + References No definition available. + Details
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Namespace Prefix: | payc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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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
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |