Fair Value of Assets and Liabilities - Impairment of Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill and intangible assets	$ 0	$ 0	$ 14,809
Goodwill	826,715	453,414	403,544
Other intangible assets	$ 361,474	$ 203,850
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill impairment			8,794
Impairment of intangible assets			6,015
Impairment of goodwill and intangible assets			14,809
Goodwill			0
Other intangible assets			660
Total			660
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill			0
Other intangible assets			680
Total			$ 680