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Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 30, 2016
--- | --- | ---
Debt Instrument [Line Items] |  |
Less unamortized discount on term loan B and debt issuance costs | $ (39,437) | $ (40,837)
Total debt | 1,702,412 | 1,730,163
Less current portion of long-term debt | 34,173 | 31,344
Total long-term debt | 1,668,239 | 1,698,819
Secured Debt [Member] | Loans Payable [Member] | Term Loan A (TLA) Facility [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 351,563 | 356,250
Secured Debt [Member] | Loans Payable [Member] | Term Loan B (TLB) Facility [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 948,286 | 1,014,750
Secured Debt [Member] | Loans Payable [Member] | 9.125% Senior Notes due 2023 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 360,000 | 360,000
Secured Debt [Member] | Revolving Credit Facility [Member] | New Revolving Credit Facility 2015 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 82,000 | $ 40,000

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