XML 49 R36.htm IDEA: XBRL DOCUMENT
v3.19.1

Pension and Other Postretirement Benefit Plans (Tables) | 6 Months Ended
--- | ---
Mar. 29, 2019
Defined Benefit Plan [Abstract] |
Schedule of Pension Plans' Net Benefit Obligation | The following table presents the components of net periodic benefit cost recognized in earnings during the three and six months ended March 29, 2019 and March 30, 2018 (in thousands):
| Three Months Ended |  | Six Months Ended
| March 29, 2019 |  | March 30, 2018 |  | March 29, 2019 |  | March 30, 2018
Component: |  |  |  |  |  |  |
Service cost | $ | 2,127 |  |  | $ | 2,696 |  |  | $ | 4,333 |  |  | $ | 4,977 |
Interest cost | 17,715 |  |  | 14,860 |  |  | 35,828 |  |  | 30,284 |
Expected return on plan assets | (26,709 | ) |  | (24,602 | ) |  | (53,418 | ) |  | (49,675 | )
Amortization of previously unrecognized items | 3,489 |  |  | 2,510 |  |  | 6,171 |  |  | 4,800 |
Plan Amendment and settlement loss (gain) | (32,449 | ) |  | — |  |  | (34,621 | ) |  | 3,819 |
| $ | (35,827 | ) |  | $ | (4,536 | ) |  | $ | (41,707 | ) |  | $ | (5,795 | )
Defined Contribution Plans | The following table presents certain information regarding the Company’s cash contributions to our pension plans for fiscal 2018 (in thousands):
Cash contributions made during the first six months of fiscal 2019 | $ | 17,116 |
Cash contributions projected for the remainder of fiscal 2019 | 16,870 |
Total | $ | 33,986 |

X
- Definition Tabular disclosure of cash contributions to company pension plans + References No definition available. + Details
Name: | jec_DefinedBenefitPlansCompanyCashContributionsTableTextBlock
Namespace Prefix: | jec_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration