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Pensions (Tables) - Pension Plans, Defined Benefit [Member] | 12 Months Ended
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Sep. 27, 2015
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Expected Benefit Payments [Table Text Block] | We anticipate future benefit payments to be paid from the pension trust as follows:
(Thousands of Dollars) |
2015 | 11,880 |
2016 | 11,717 |
2017 | 11,750 |
2018 | 11,776 |
2019 | 11,760 |
2020-2024 | 58,883 |
Schedule of Allocation of Plan Assets [Table Text Block] | The weighted-average asset allocation of our pension assets is as follows:
(Percent) | Policy Allocation |  | Actual Allocation
Asset Class | September 27 2015 |  | September 27 2015 | September 28 2014
Equity securities | 50 |  | 46 | 48
Debt securities | 35 |  | 37 | 20
TIPS | 5 |  | 4 | 4
Hedge fund investments | 10 |  | 11 | 10
Cash and cash equivalents | — |  | 2 | 18
Schedule of Assumptions Used [Table Text Block] | Weighted-average assumptions used to determine net periodic benefit cost are as follows:
(Percent) | 2015 |  |  | 2014 |  |  | 2013 |
Discount rate | 4.2 |  |  | 4.7 |  |  | 3.85 |
Expected long-term return on plan assets | 6.8 |  |  | 7.0 |  |  | 7.5 |
Weighted-average assumptions used to determine benefit obligations are as follows:
(Percent) | September 27 2015 |  | September 28 2014
Discount rate | 4.2 |  | 4.2
Schedule of Defined Benefit Plans Disclosures [Table Text Block] | The net periodic cost (benefit) components of our pension plans are as follows:
(Thousands of Dollars) | 2015 |  |  | 2014 |  |  | 2013 |
Service cost for benefits earned during the year | 232 |  |  | 156 |  |  | 216 |
Interest cost on projected benefit obligation | 8,122 |  |  | 7,996 |  |  | 7,529 |
Expected return on plan assets | (9,863 | ) |  | (9,932 | ) |  | (9,838 | )
Amortization of net loss | 1,682 |  |  | 423 |  |  | 2,287 |
Amortization of prior service benefit | (136 | ) |  | (136 | ) |  | (136 | )
Net periodic pension cost (benefit) | 37 |  |  | (1,493 | ) |  | 58 |
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] | Changes in benefit obligations and plan assets are as follows:
(Thousands of Dollars) | 2015 |  |  | 2014 |
Benefit obligation, beginning of year | 199,197 |  |  | 175,771 |
Service cost | 232 |  |  | 156 |
Interest cost | 8,122 |  |  | 7,996 |
Actuarial loss (gain) | (2,543 | ) |  | 26,526 |
Benefits paid | (11,257 | ) |  | (11,252 | )
Benefit obligation, end of year | 193,751 |  |  | 199,197 |
Fair value of plan assets, beginning of year: | 151,013 |  |  | 147,265 |
Actual return on plan assets | 1,817 |  |  | 15,074 |
Benefits paid | (11,257 | ) |  | (11,252 | )
Administrative expenses paid | (1,862 | ) |  | (1,509 | )
Employer contributions | 3,577 |  |  | 1,435 |
Fair value of plan assets, end of year | 143,288 |  |  | 151,013 |
Funded status - benefit obligation in excess of plan assets | 50,463 |  |  | 48,184 |
Schedule of Amounts Recognized in Balance Sheet [Table Text Block] | Disaggregated amounts recognized in the Consolidated Balance Sheets are as follows:
(Thousands of Dollars) | September 27 2015 |  |  | September 28 2014 |
Pension obligations | 50,463 |  |  | 48,184 |
Accumulated other comprehensive loss (before income taxes) | (47,515 | ) |  | (41,695 | )
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] | Amounts recognized in accumulated other comprehensive income (loss) are as follows:
(Thousands of Dollars) | September 27 2015 |  |  | September 28 2014 |
Unrecognized net actuarial loss | (48,031 | ) |  | (42,348 | )
Unrecognized prior service benefit | 516 |  |  | 653 |
| (47,515 | ) |  | (41,695 | )
Schedule of Changes in Fair Value of Plan Assets [Table Text Block] | The fair value hierarchy of pension assets at September 27, 2015 is as follows:
(Thousands of Dollars) | Level 1 |  | Level 2 |  | Level 3 |
Cash and cash equivalents | 2,407 |  | — |  | — |
Domestic equity securities | 8,153 |  | 44,470 |  | — |
International equity securities | 6,286 |  | 7,389 |  | — |
TIPS | 6,450 |  | — |  | — |
Debt securities | 31,196 |  | 21,370 |  | — |
Hedge fund investments | — |  | 8,463 |  | 8,881 |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | Following is a rollfoward of Level 3 plan assets in 2015:
(Thousands of Dollars) | Level 3 |
Balance, beginning of year | 8,351 |
Purchases, issuances, sales, settlements | — |
Unrealized gains | 530 |
Balance, end of year | 8,881 |

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