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Components of Current and Long-Term Debt (Detail) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 30, 2017
Debt Instrument
Total Debt		$ 1,801,500	$ 1,865,000
Less: Current Portion		118,498	82,750
Unamortized Deferred Financing Costs		10,298	11,205
Unamortized Debt Discount		28,233	30,433
Total Long-Term Debt		$ 1,644,471	$ 1,740,612
Effective Interest Rate	[1]	7.44%	4.96%
Former Tranche B-2 Term Facility due April 2, 2020
Debt Instrument
Total Debt		$ 0	$ 0
Unamortized Deferred Financing Costs		0	0
Unamortized Debt Discount		$ 0	$ 0
Effective Interest Rate	[1]	0.00%	4.76%
New Term Loan due November 29, 2024
Debt Instrument
Total Debt		$ 1,501,500	$ 1,540,000
Unamortized Deferred Financing Costs		9,009	9,783
Unamortized Debt Discount		$ 28,233	$ 30,433
Effective Interest Rate	[1]	7.24%	6.84%
Notes due December 1, 2025
Debt Instrument
Total Debt		$ 300,000	$ 300,000
Unamortized Deferred Financing Costs		1,289	1,422
Unamortized Debt Discount		$ 0	$ 0
Effective Interest Rate	[1]	8.57%	8.82%
New Revolving Credit Facility due November 29, 2022
Debt Instrument
Total Debt		$ 0	$ 25,000
Unamortized Deferred Financing Costs		0	0
Unamortized Debt Discount		$ 0	$ 0
Effective Interest Rate	[1]	4.34%	4.15%
[1] Includes amortization of deferred financing costs and debt discount. For fiscal 2017, the effective interest rate for the tranche B-2 term facility of the Company’s then-existing term loan facility was computed based on interest expense incurred over the period for which borrowings were outstanding.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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