Basis of Presentation and Significant Accounting Policies Accounts Receivable Allowance Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 28, 2014
Allowance for Doubtful Accounts Receivable [Roll Forward]
Accounts receivable allowance balance, beginning of the period	$ 5,543	$ 6,795	$ 16,006
Additions charged to revenues, costs and expenses	14,009	5,277	20,364
Deductions	(7,048)	(6,529)	(17,843)
Allowance for Doubtful Accounts Receivable, Distributions in Spin-off			(11,732)
Accounts receivable allowance balance, end of the period	$ 12,504	$ 5,543	$ 6,795