XML 134 R112.htm IDEA: XBRL DOCUMENT
v3.25.3

Discontinued Operations - Schedule of Notable Components Included In Consolidated Statements of Cash Flows For These Discontinued Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 26, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Intangible assets | $ 155,517 | $ 209,507 | $ 203,906
Discontinued Operations, Spinoff | SpinCo Business |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Property, equipment and improvements | 0 | 16,245 | 19,075
Intangible assets | 0 | 56,839 | 56,675
Deferred income taxes | 4,235 | (106,424) | (5,297)
Additions to property and equipment | $ 0 | $ (13,067) | $ (26,448)

X
- Definition Depreciation and Amortization, Property Equipment, and Improvements, Discontinued Operations + References No definition available. + Details
Name: | jec_DepreciationAndAmortizationPropertyEquipmentAndImprovementsDiscontinuedOperations
Namespace Prefix: | jec_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operation, Property and Equipment Additions + References No definition available. + Details
Name: | jec_DisposalGroupIncludingDiscontinuedOperationPropertyAndEquipmentAdditions
Namespace Prefix: | jec_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Amortization of Intangible Assets + References No definition available. + Details
Name: | jec_DisposalGroupIncludingDiscontinuedOperationsAmortizationOfIntangibleAssets
Namespace Prefix: | jec_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operations, Deferred Income Taxes + References No definition available. + Details
Name: | jec_DisposalGroupIncludingDiscontinuedOperationsDeferredIncomeTaxes
Namespace Prefix: | jec_
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 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3A + Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=jec_SpinCoBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |