Acquisitions and Purchase Accounting - Market Forge Acquisition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 210,921	$ 348,625	$ 219,915
Goodwill	$ 1,092,722	$ 983,339	$ 808,491