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v3.23.1

Contingencies - Additional Information (Details) | 3 Months Ended
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Mar. 31, 2023 USD ($) Claim
Legal Proceedings [Line Items] |
Number of claims outstanding | Claim | 0
Alleged Violation of False Claims, Act |
Legal Proceedings [Line Items] |
Amount paid by relator to acquire vehicles for contractor defendant to perform security services | $ 2,900,000
Alleged Violation of False Claims, Act | Minimum |
Legal Proceedings [Line Items] |
Amount paid per month to contractor defendant by relator on false claims | 1,000,000
Loss contingency sought value, civil penalty for each alleged violation of Act | 5,500
Alleged Violation of False Claims, Act | Maximum |
Legal Proceedings [Line Items] |
Loss contingency sought value, civil penalty for each alleged violation of Act | $ 11,000

X
- Definition Amount paid per month to contractor defendant by relator on false claims. + References No definition available. + Details
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Namespace Prefix: | psn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount paid to acquire vehicles for contractor defendant to perform security services. + References No definition available. + Details
Name: | psn_AmountPaidToAcquireVehiclesForContractorDefendantToPerformSecurityServices
Namespace Prefix: | psn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Legal Proceedings. + References No definition available. + Details
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Period Type: | duration

X
- Definition Loss contingency, number of claims. + References No definition available. + Details
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X
- Definition Loss contingency sought value, civil penalty for each alleged violation of Act. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Details
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- Details
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- Details
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