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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 27, 2017
Retirement Benefits [Abstract] |
Schedule of pension and other defined benefit plan obligations and funded status | The obligations and funded status for the Pension Plan and other defined benefit plans were as follows:
| Pension Plan |  | Other Defined Benefit Plans
| December 27, 2017 |  | December 28, 2016 |  | December 27, 2017 |  | December 28, 2016
| (In thousands)
Change in Benefit Obligation: |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | — |  |  | $ | 67,735 |  |  | $ | 2,639 |  |  | $ | 2,669 |
Service cost | — |  |  | 105 |  |  | — |  |  | — |
Interest cost | — |  |  | — |  |  | 83 |  |  | 91 |
Actuarial losses | — |  |  | 945 |  |  | 172 |  |  | 73 |
Benefits paid | — |  |  | (1,057 | ) |  | (195 | ) |  | (194 | )
Settlements | — |  |  | (67,728 | ) |  | (91 | ) |  | — |
Benefit obligation at end of year | $ | — |  |  | $ | — |  |  | $ | 2,608 |  |  | $ | 2,639 |
Accumulated benefit obligation | $ | — |  |  | $ | — |  |  | $ | 2,608 |  |  | $ | 2,639 |
Change in Plan Assets: |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | — |  |  | $ | 58,378 |  |  | $ | — |  |  | $ | — |
Actual return on plan assets | — |  |  | 861 |  |  | — |  |  | — |
Employer contributions | — |  |  | 9,546 |  |  | 286 |  |  | 194 |
Benefits paid | — |  |  | (1,057 | ) |  | (195 | ) |  | (194 | )
Settlements | — |  |  | (67,728 | ) |  | (91 | ) |  | — |
Fair value of plan assets at end of year | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Funded status | $ | — |  |  | $ | — |  |  | $ | (2,608 | ) |  | $ | (2,639 | )
Schedule of amounts recognized in the Consolidated Balance Sheets | The amounts recognized in our Consolidated Balance Sheets were as follows:
| Pension Plan |  | Other Defined Benefit Plans
| December 27, 2017 |  | December 28, 2016 |  | December 27, 2017 |  | December 28, 2016
| (In thousands)
Other current liabilities | $ | — |  |  | $ | — |  |  | $ | (280 | ) |  | $ | (259 | )
Other noncurrent liabilities | — |  |  | — |  |  | (2,328 | ) |  | (2,380 | )
Net amount recognized | $ | — |  |  | $ | — |  |  | $ | (2,608 | ) |  | $ | (2,639 | )
Schedule of net periodic benefit cost not yet recognized | The amounts recognized in accumulated other comprehensive income, that have not yet been recognized as a component of net periodic benefit cost, were as follows:
| Pension Plan |  | Other Defined Benefit Plans
| December 27, 2017 |  | December 28, 2016 |  | December 27, 2017 |  | December 28, 2016
| (In thousands)
Unamortized actuarial losses, net | $ | — |  |  | — |  |  | (1,092 | ) |  | (1,033 | )
Components of the change in accumulated other comprehensive loss | The components of the change in unamortized actuarial losses, net, included in accumulated other comprehensive loss were as follows:
| Fiscal Year Ended
| December 27, 2017 |  | December 28, 2016
| (In thousands)
Pension Plan: |  |  |
Balance, beginning of year | $ | — |  |  | $ | (23,955 | )
Benefit obligation actuarial loss | — |  |  | (945 | )
Net gain | — |  |  | 603 |
Settlement loss recognized | — |  |  | 24,297 |
Balance, end of year | $ | — |  |  | $ | — |
Other Defined Benefit Plans: |  |  |
Balance, beginning of year | $ | (1,033 | ) |  | $ | (1,045 | )
Benefit obligation actuarial loss | (172 | ) |  | (73 | )
Amortization of net loss | 92 |  |  | 85 |
Settlement loss recognized | 21 |  |  | — |
Balance, end of year | $ | (1,092 | ) |  | $ | (1,033 | )
Components of net periodic benefit cost | The components of net periodic benefit cost were as follows:
| Fiscal Year Ended
| December 27, 2017 |  | December 28, 2016 |  | December 30, 2015
| (In thousands)
Pension Plan: |  |  |  |  |
Service cost | $ | — |  |  | $ | 105 |  |  | $ | 380 |
Interest cost | — |  |  | — |  |  | 2,983 |
Expected return on plan assets | — |  |  | — |  |  | (3,508 | )
Amortization of net loss | — |  |  | — |  |  | 1,733 |
Settlement loss recognized | — |  |  | 24,297 |  |  | — |
Net periodic benefit cost | $ | — |  |  | $ | 24,402 |  |  | $ | 1,588 |
Other comprehensive (income) loss | $ | — |  |  | $ | (23,955 | ) |  | $ | (3,619 | )
Other Defined Benefit Plans: |  |  |  |  |
Interest cost | $ | 83 |  |  | $ | 91 |  |  | $ | 107 |
Amortization of net loss | 92 |  |  | 85 |  |  | 79 |
Settlement loss recognized | 21 |  |  | — |  |  | — |
Net periodic benefit cost | $ | 196 |  |  | $ | 176 |  |  | $ | 186 |
Other comprehensive (income) loss | $ | 59 |  |  | $ | (12 | ) |  | $ | (36 | )
Schedule of assumptions used to determine benefit obligations |
| December 27, 2017 |  | December 28, 2016 |  | December 30, 2015
Assumptions used to determine benefit obligations: |  |  |  |  |
Pension Plan: |  |  |  |  |
Discount rate | N/A |  |  | N/A |  |  |
Other Defined Benefit Plans: |  |  |  |  |
Discount rate | 3.08 | % |  | 3.31 | % |  |
Assumptions used to determine net periodic pension cost: |  |  |  |  |
Discount rate | 3.31 | % |  | 3.62 | % |  | 4.12 | %
Rate of increase in compensation levels | N/A |  |  | N/A |  |  | N/A |
Expected long-term rate of return on assets | N/A |  |  | N/A |  |  | 5.75 | %
Schedule of expected benefit payments | Benefits expected to be paid for each of the next five years and in the aggregate for the five fiscal years from 2023 through 2027 are as follows:
| Other Defined Benefit Plans
| (In thousands)
2018 | $ | 280 |
2019 | 564 |
2020 | 253 |
2021 | 229 |
2022 | 296 |
2023 through 2027 | 1,027 |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2439-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=77993564&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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