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Shareholders' Equity Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 27, 2017
Statement of Comprehensive Income [Abstract] |
Components of accumulated other comprehensive loss | The components of the change in accumulated other comprehensive loss were as follows:
| Pensions |  | Derivatives |  | Accumulated Other Comprehensive Loss
| (In thousands)
Balance as of December 31, 2014 | $ | (24,994 | ) |  | $ | 392 |  |  | $ | (24,602 | )
Benefit obligation actuarial gain | 5,737 |  |  | — |  |  | 5,737 |
Net loss | (3,894 | ) |  | — |  |  | (3,894 | )
Amortization of net loss (1) | 1,812 |  |  | — |  |  | 1,812 |
Net change in fair value of derivatives | — |  |  | (1,444 | ) |  | (1,444 | )
Reclassification of derivatives to interest expense (2) | — |  |  | (859 | ) |  | (859 | )
Income tax (expense) benefit | (1,425 | ) |  | 898 |  |  | (527 | )
Balance as of December 30, 2015 | $ | (22,764 | ) |  | $ | (1,013 | ) |  | $ | (23,777 | )
Benefit obligation actuarial loss | (1,018 | ) |  | — |  |  | (1,018 | )
Net gain | 603 |  |  | — |  |  | 603 |
Amortization of net loss (1) | 85 |  |  | — |  |  | 85 |
Settlement loss recognized | 24,297 |  |  | — |  |  | 24,297 |
Net change in fair value of derivatives | — |  |  | 1,693 |  |  | 1,693 |
Reclassification of derivatives to interest expense (2) | — |  |  | (789 | ) |  | (789 | )
Income tax expense | (2,148 | ) |  | (353 | ) |  | (2,501 | )
Balance as of December 28, 2016 | $ | (945 | ) |  | $ | (462 | ) |  | $ | (1,407 | )
Benefit obligation actuarial loss | (172 | ) |  | — |  |  | (172 | )
Amortization of net loss (1) | 92 |  |  | — |  |  | 92 |
Settlement loss recognized | 21 |  |  | — |  |  | 21 |
Net change in fair value of derivatives | — |  |  | (1,359 | ) |  | (1,359 | )
Reclassification of derivatives to interest expense (2) | — |  |  | (72 | ) |  | (72 | )
Income tax benefit | 22 |  |  | 559 |  |  | 581 |
Balance as of December 27, 2017 | $ | (982 | ) |  | $ | (1,334 | ) |  | $ | (2,316 | )
(1) | Before-tax amount that was reclassified from accumulated other comprehensive loss and included as a component of pension expense within general and administrative expenses in our Consolidated Statements of Income. See Note 11 for additional details.
(2) | Amounts reclassified from accumulated other comprehensive loss into income, represent payments made to the counterparty for the effective portions of the interest rate swaps. These amounts are included as a component of interest expense in our Consolidated Statements of Income. We expect to reclassify approximately $1.3 million from accumulated other comprehensive loss related to our interest rate swaps during the next twelve months. See Note 10 for additional details.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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