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Pension Plans and Other Postretirement Benefits (Tables) | 9 Months Ended
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Jun. 24, 2017
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract] |
Components of Net Periodic Benefit Costs | The following table provides the components of net periodic benefit costs:
|  | Pension Benefits |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | June 24, |  |  | June 25, |  |  | June 24, |  |  | June 25, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Interest cost |  | $ | 1,041 |  |  | $ | 1,260 |  |  | $ | 3,123 |  |  | $ | 3,781 |
Expected return on plan assets |  |  | (537 | ) |  |  | (854 | ) |  |  | (1,611 | ) |  |  | (2,563 | )
Amortization of net loss (gain) |  |  | 1,301 |  |  |  | 1,304 |  |  |  | 3,901 |  |  |  | 3,913 |
Net periodic benefit cost |  | $ | 1,805 |  |  | $ | 1,710 |  |  | $ | 5,413 |  |  | $ | 5,131 |
|  | Postretirement Benefits |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | June 24, |  |  | June 25, |  |  | June 24, |  |  | June 25, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Interest cost |  | $ | 96 |  |  | $ | 130 |  |  | $ | 288 |  |  | $ | 400 |
Amortization of prior service credits |  |  | — |  |  |  | (100 | ) |  |  | — |  |  |  | (300 | )
Amortization of net loss (gain) |  |  | (98 | ) |  |  | (74 | ) |  |  | (292 | ) |  |  | (223 | )
Net periodic benefit cost |  | $ | (2 | ) |  | $ | (44 | ) |  | $ | (4 | ) |  | $ | (123 | )

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- 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
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