Summary of Significant Accounting Policies (Accounts Receivable) (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Dec. 27, 2014	Dec. 28, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 4,632	$ 4,952	$ 4,573
Charged to expense	2,567	1,634	4,073
Write-offs, recoveries and other	(1,327)	(1,954)	(3,694)
Balance at end of year	$ 5,872	$ 4,632	$ 4,952