Indebtedness and Interest Expense - Schedule of Debt (Details) - USD ($) $ in Thousands		3 Months Ended
		Apr. 02, 2017	Apr. 03, 2016	Jan. 01, 2017
Debt Instrument [Line Items]
Long-term debt, gross		$ 992,200		$ 994,113
Unamortized original issue discount		(2,100)		(2,235)
Deferred Finance Costs, Noncurrent, Net		(14,997)		(15,999)
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months		(7,600)		(7,613)
Bank indebtedness and other long-term debt, net of deferred financing costs, less current portion		967,503		968,266
Amortization of debt issuance costs		314
Interest Expense, Other Long-term Debt			$ (452)
Interest Expense		17,061	17,061
Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest Expense, Debt	[1]	7,608	8,157
Long-term debt, gross		737,200		739,100
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt		255,000		255,000
Interest Expense, Debt, Excluding Amortization		5,083	5,157
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term debt, gross		0		$ 13
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Leases, Income Statement, Interest Expense		417	440
InterestExpenseSaleLeaseback		2,638	2,758
Sale Leaseback Obligations [Member]
Debt Instrument [Line Items]
InterestExpenseSaleLeaseback		$ 1,001
Amortization of debt issuance costs			$ 1,001
Senior Notes due 2022 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.00%

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