Debt (Deferred Financing Fees) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2016	Jan. 01, 2016	Jan. 02, 2015
Deferred Finance Costs [Roll Forward]
Total, Beginning Balance	$ (45,947)
Total, Amortization during the period	(7,278)	$ (11,320)	$ (773)
Total, Ending Balance	(40,837)	(45,947)
Revolving Credit Facility [Member]
Deferred Finance Costs [Roll Forward]
Debt issuance costs, Beginning Balance	4,791	2,200
Debt issuance costs, Financing costs incurred		4,152
Debt issuance costs, Write-off during the period		(907)
Debt issuance costs, Amortization during the period	(991)	(654)
Debt issuance costs, Ending Balance	3,800	4,791	2,200
Term Loan And Senior Notes [Member]
Deferred Finance Costs [Roll Forward]
Debt issuance costs, Beginning Balance	35,908	887
Debt issuance costs, Financing costs incurred	1,177	41,781
Debt issuance costs, Write-off during the period		(732)
Debt issuance costs, Amortization during the period	(4,989)	(6,028)
Debt issuance costs, Ending Balance	32,096	35,908	887
Total, Beginning Balance	45,947	887
Total, Financing costs incurred	1,177	52,031
Total, Write-off during the period		(732)
Total, Amortization during the period	(6,287)	(6,239)
Total, Ending Balance	40,837	45,947	887
Term Loan B (TLB) Facility [Member]
Deferred Finance Costs [Roll Forward]
Unamortized discount on TLB Facility, Beginning Balance	10,039	0
Unamortized discount on TLB Facility, Financing costs incurred	0	10,250
Unamortized discount on TLB Facility, Write-off during the period		0
Unamortized discount on TLB Facility, Amortization during the period	(1,298)	(211)
Unamortized discount on TLB Facility, Ending Balance	$ 8,741	$ 10,039	$ 0