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Income Taxes (Reconciliation of Income Taxes) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2016 | Dec. 30, 2015 | Dec. 31, 2014 | Dec. 28, 2011
Reconciliation of income taxes at the U.S. federal statutory tax rate to effective tax rate: |  |  |  |
Statutory provision rate | 35.00% | 35.00% | 35.00% |
State and local taxes, net of federal income tax benefit | 9.00% | 6.00% | 3.00% |
Foreign taxes, net of federal income tax benefit | 0.00% | 0.00% | 1.00% |
Wage addback on income tax credits earned | 3.00% | 2.00% | 2.00% |
General business credits generated | (9.00%) | (6.00%) | (6.00%) |
Foreign tax credits generated | (12.00%) | (2.00%) | (0.00%) |
Pension plan liquidation | 18.00% | 0.00% | 0.00% |
Other | 2.00% | (2.00%) | (1.00%) |
Release of valuation allowance | 0.00% | 0.00% | (1.00%) |
Effective tax rate | 46.00% | 33.00% | 33.00% |
Tax benefit recognized with pension plan liquidation | $ 2,100 |  |  |
Pension settlement loss | (24,297) | $ 0 | $ 0 |
Tax benefit recognized with reversal of the valuation allowance | (132) | $ 130 | $ 270 | $ 7,200
Tax benefit recognized with foreign tax credits | $ 3,700 |  |  |

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- Definition Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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