Indebtedness and Interest Expense - Schedule of Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016	Jan. 01, 2017
Debt Instrument [Line Items]
Long-term debt, gross	$ 988,400		$ 988,400		$ 994,113
Unamortized original issue discount	(1,829)		(1,829)		(2,235)
Debt Issuance Costs, Noncurrent, Net	(12,995)		(12,995)		(15,999)
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months	(7,600)		(7,600)		(7,613)
Bank indebtedness and other long-term debt, net of deferred financing costs, less current portion	965,976		965,976		968,266
Amortization of debt issuance costs	272
Interest Expense, Other Long-term Debt		$ (323)	(869)	$ (260)
Interest Expense	17,451	17,237	51,574	51,419
Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest Expense, Debt	8,014	7,646	23,240	23,303
Long-term debt, gross	733,400		733,400		739,100
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	255,000		255,000		255,000
Interest Expense, Debt, Excluding Amortization	5,083	5,157	15,248	15,470
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term debt, gross	0		0		$ 13
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Leases, Income Statement, Interest Expense	434	436	1,264	1,315
InterestExpenseSaleLeaseback	2,647	2,674	7,949	8,067
Sale Leaseback Obligations [Member]
Debt Instrument [Line Items]
InterestExpenseSaleLeaseback	$ 1,001
Amortization of debt issuance costs		$ 1,001	$ 3,004	$ 3,004
Senior Notes due 2022 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.00%		8.00%