Long-Term Debt (Debt Schedule) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Mar. 10, 2015
Debt Instrument [Line Items]
Principal amount	$ 342,221,000
Contractual interest	18,518,000	$ 15,225,000	$ 0
Amortization of debt issuance costs and discount	1,350,000	2,835,000	0
Total Interest expense related to the Term Loan	19,868,000	18,060,000	$ 0
Line of Credit | Term Loan
Debt Instrument [Line Items]
Principal amount	342,221,000	347,375,000		$ 350,000,000
Unamortized original issue discount and debt issuance costs	(7,599,000)	(8,948,000)		$ (3,500,000)
Less: Current portion of long-term debt	(33,767,000)	(7,557,000)
Long-term debt	$ 300,855,000	$ 330,870,000