Equity Method Investment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended			24 Months Ended
	Oct. 01, 2016	Jan. 02, 2016	Oct. 03, 2015	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Payments to acquire securities non-marketable securities			$ 3,000
Cost method investment, ownership percentage			15.80%
Equity method investment, ownership percentage				22.70%			22.70%
Payments to acquire equity method investments	$ 1,000	$ 2,000		$ 1,000	$ 5,000	$ 0
Equity Method Investment Activities [Roll Forward]
Equity method investments, Beginning Balance	6,000	4,508			4,508	0
Investment made during fiscal year	$ 1,000	$ 2,000		1,000	5,000	0
Equity in net loss of an unconsolidated affiliate, net of tax				(1,459)	(492)	$ 0	$ (2,000)
Equity method investments, Ending Balance			$ 0	4,508	$ 0		0
Other Noncurrent Assets
Equity Method Investment Activities [Roll Forward]
Equity method investments, Beginning Balance				$ 4,049			$ 4,049