| Compensation and Retirement Disclosure [Abstract] | Period [Axis] |
|---|
2015-09-26 - 2016-09-30 |
|---|
Compensation and Retirement Disclosure [Abstract] | |
Schedule of Net Periodic Benefit Cost | The net periodic benefit cost for the periods presented was as follows: | | | | | | | | | | | | | | Fiscal Year Ended | (in thousands) | September 30, 2016 | | September 25, 2015 | | September 26, 2014 | Service cost | $ | 1,894 |
| | $ | 2,509 |
| | $ | 2,783 |
| Interest cost | 4,143 |
| | 4,784 |
| | 4,850 |
| Expected return on plan assets | (6,318 | ) | | (6,803 | ) | | (6,265 | ) | Amortization of actuarial loss | 722 |
| | 88 |
| | — |
| Net periodic benefit cost | $ | 441 |
| | $ | 578 |
| | $ | 1,368 |
| Weighted-average assumptions used to determine net periodic pension cost during the period: | | | | | | Discount rate | 4.2 | % |
| 4.2 | % | | 4.6 | % | Expected return on plan assets | 7.0 | % | | 7.0 | % | | 7.0 | % | Rate of compensation increase | N/a |
|
| N/a |
| | N/a |
|
|
Schedule of Amounts Amortized from Accumulated Other Comprehensive Loss | The amounts amortized from accumulated other comprehensive loss is as follows: | | | | | | | | | | | | | | Fiscal Year Ended | (in thousands) | September 30, 2016 | | September 25, 2015 | | September 26, 2014 | Amortization of unrecognized actuarial loss | $ | 722 |
| | $ | 88 |
| | $ | — |
|
|
Schedule of Change in Benefit Obligations and Plan Assets | The change in the benefit obligations, plan assets and the amounts recognized on the consolidated balance sheets was as follows: | | | | | | Change in benefit obligations: | | | Benefit obligations as of September 26, 2014 | | $ | 116,648 |
| Service cost | | 2,509 |
| Interest cost | | 4,784 |
| Actuarial loss | | 1,542 |
| Benefits and administrative expenses paid | | (4,283 | ) | Benefit obligations as of September 25, 2015 | | 121,200 |
| Service cost | | 1,894 |
| Interest cost | | 4,143 |
| Actuarial loss | | 10,542 |
| Benefits and administrative expenses paid | | (4,627 | ) | Benefit obligations as of September 30, 2016 | | $ | 133,152 |
| | | |
| Change in plan assets: | | | Fair value of plan assets as of September 26, 2014 | | $ | 99,820 |
| Actual return on plan assets | | (3,566 | ) | Employer contributions | | 1,103 |
| Benefits and administrative expenses paid | | (4,283 | ) | Fair value of plan assets as of September 25, 2015 | | 93,074 |
| Actual return on plan assets | | 9,122 |
| Employer contributions | | 411 |
| Benefits and administrative expenses paid | | (4,627 | ) | Fair value of plan assets as of September 30, 2016 | | $ | 97,980 |
| Funded status as of September 30, 2016 | | $ | (35,172 | ) |
|
Schedule of Amounts Recognized in Balance Sheet | | | | | | | | | | | | | September 30, 2016 | | September 25, 2015 | Amounts recognized in the consolidated balance sheets consist of: | | | | | Pension liabilities | | $ | (35,172 | ) | | $ | (28,126 | ) | Net amount recognized | | $ | (35,172 | ) | | $ | (28,126 | ) | | | | | | Amounts recognized in accumulated other comprehensive loss (before income taxes) consist of: | | | | | Net actuarial loss | | $ | (28,205 | ) | | $ | (21,189 | ) | Total loss recognized | | $ | (28,205 | ) | | $ | (21,189 | ) | | | | | | Weighted-average assumptions used to determine pension benefit obligations at year end: | | | | | Discount rate | | 3.5 | % | | 4.2 | % | Rate of compensation increase | | N/a |
| | N/a |
|
|
Schedule of Allocation of Plan Assets | Pension plans have the following weighted-average asset allocations: | | | | | | | | September 30, 2016 | | September 25, 2015 | Asset Category: | | | | | Equity securities | | 52% | | 59% | Debt securities | | 33% | | 40% | Cash and cash equivalents | | 15% | | 1% | Total | | 100% | | 100% |
The Company’s asset allocations by level within the fair value hierarchy for the years ended September 30, 2016 and September 25, 2015, are presented in the table below for the Company’s defined benefit plans. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2016 | | September 25, 2015 | (in thousands) | | Level 1 | | Level 2 | | Level 3 | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | Equity securities: | | | | | | | | | | | | | | | | | U.S. equity securities | | $ | — |
| | $ | 28,798 |
| | $ | — |
| | $ | 28,798 |
| | $ | 9,635 |
| | $ | 26,682 |
| | $ | — |
| | $ | 36,317 |
| Non-U.S. equity securities | | — |
| | 21,754 |
| | — |
| | 21,754 |
| | — |
| | 18,990 |
| | — |
| | 18,990 |
| Fixed income securities: | | | | | | | |
|
| | | | | | | |
|
| Government and government agency securities | | — |
| | 7,688 |
| | — |
| | 7,688 |
| | — |
| | 17,890 |
| | — |
| | 17,890 |
| Corporate debt securities | | — |
| | 16,230 |
| | — |
| | 16,230 |
| | — |
| | 18,791 |
| | — |
| | 18,791 |
| Mortgage and other asset-backed securities | | — |
| | 8,454 |
| | — |
| | 8,454 |
| | — |
| | 376 |
| | — |
| | 376 |
| Cash and cash equivalents | | 15,056 |
| | — |
| | — |
| | 15,056 |
| | 710 |
| | — |
| | — |
| | 710 |
| Total | | $ | 15,056 |
| | $ | 82,924 |
| | $ | — |
| | $ | 97,980 |
| | $ | 10,345 |
| | $ | 82,729 |
| | $ | — |
| | $ | 93,074 |
|
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Schedule of Future Benefit Payments | Benefit payments, which reflect future expected service as appropriate, are expected to be paid in each fiscal year as follows: | | | | | | (in thousands) | | | 2017 | | $ | 4,926 |
| 2018 | | 5,338 |
| 2019 | | 5,659 |
| 2020 | | 6,040 |
| 2021 | | 6,358 |
| 2022-2026 | | 35,361 |
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