Distribution Agreements, Net - Reconciliation of Activity for Other Identifiable Intangible Assets Net (Detail) - Distribution Agreements [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 30, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Total Other Identifiable Intangible Assets, Beginning Balance		$ 913,352	$ 234,988
Conversion to distribution rights from franchise rights			533,040
2017 System Transformation Transactions acquisitions	[1]		213,000
October 2017 Divestitures			(65,043)
Measurement period adjustment	[2]	4,700	16,000
Other distribution agreements		6,332	44
Additional accumulated amortization		(24,001)	(18,677)
Total Other Identifiable Intangible Assets, Ending Balance		$ 900,383	$ 913,352

[1] 2017 System Transformation Transactions acquisitions includes an increase of $51.5 million in 2017 from the opening balance sheets for distribution territories and regional manufacturing facilities acquired in the System Transformation during 2017, as disclosed in the financial statements in the Company’s filed periodic reports. These adjustments are for post-closing adjustments made in accordance with the terms and conditions of the applicable asset purchase agreement or asset exchange agreement for each System Transformation Transaction. The adjustments to amortization expense associated with these measurement period adjustments were not material to the consolidated financial statements.

[2] Measurement period adjustment relates to post-closing adjustments made in accordance with the terms and conditions of the applicable asset purchase agreement or asset exchange agreement for each System Transformation Transaction. The adjustments to amortization expense associated with this measurement period adjustment were not material to the consolidated financial statements.