XML 81 R68.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Leases - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Lessee Lease Description [Line Items] |  |  |
Lease option to extend | five years |  |
Lease existence of option to extend | true |  |
Lease option to terminate | three years |  |
Lease existence of option to terminate | true |  |
Operating lease not yet commenced expense | $ 0 |  |
Selling, General and Administrative Expense |  |  |
Lessee Lease Description [Line Items] |  |  |
Rental expense | $ 82,000,000 | $ 81,000,000 | $ 81,000,000
Minimum |  |  |
Lessee Lease Description [Line Items] |  |  |
Lease term of contract | 1 year |  |
Maximum |  |  |
Lessee Lease Description [Line Items] |  |  |
Lease term of contract | 11 years |  |

X
- Definition Lessee lease existence of option to extend. + References No definition available. + Details
Name: | psn_LesseeLeaseExistenceOfOptionToExtend
Namespace Prefix: | psn_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee lease existence of option to terminate. + References No definition available. + Details
Name: | psn_LesseeLeaseExistenceOfOptionToTerminate
Namespace Prefix: | psn_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee lease option to extend. + References No definition available. + Details
Name: | psn_LesseeLeaseOptionToExtend
Namespace Prefix: | psn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee lease option to terminate. + References No definition available. + Details
Name: | psn_LesseeLeaseOptionToTerminate
Namespace Prefix: | psn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee lease term of contract. + References No definition available. + Details
Name: | psn_LesseeLeaseTermOfContract
Namespace Prefix: | psn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating lease not yet commenced expense. + References No definition available. + Details
Name: | psn_OperatingLeaseNotYetCommencedExpense
Namespace Prefix: | psn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-4 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
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: |