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Debt (Schedule of Deferred Financing Fees) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Apr. 01, 2016
Deferred Finance Costs [Roll Forward] |  |
Total, Beginning Balance | $ (40,837) |
Amortization during the period | (3,437) | $ (1,773)
Total, Beginning Balance | 39,437 |
Loss on extinguishment of debt | 1,600 |
Revolving Credit Facility [Member] |  |
Deferred Finance Costs [Roll Forward] |  |
Deferred Finance Costs, Net, Beginning Balance | 3,800 |
Amortization during the period | (248) |
Deferred Finance Costs, Net, Ending Balance | 3,552 |
Term Loan And Senior Notes [Member] |  |
Deferred Finance Costs [Roll Forward] |  |
Deferred Finance Costs, Net, Beginning Balance | 32,096 |
Financing costs deferred | 1,789 |
Write-off of debt issuance costs and unamortized discount | (1,051) |
Amortization during the period | (1,299) |
Deferred Finance Costs, Net, Ending Balance | 31,535 |
Total, Beginning Balance | (40,837) |
Financing costs incurred | 1,789 |
Write-off of debt issuance costs and unamortized discount | (1,559) |
Amortization during the period | (1,630) |
Total, Beginning Balance | 39,437 |
Term Loan B (TLB) Facility [Member] |  |
Deferred Finance Costs [Roll Forward] |  |
Unamortized Discount on TLB Facility, Beginning Balance | 8,741 |
Financing costs incurred | 0 |
Write-off of debt issuance costs and unamortized discount | (508) |
Amortization during the period | (331) |
Unamortized Discount on TLB Facility, Ending Balance | $ 7,902 |

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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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