Fair Value of Financial Instruments - Additional Information (Detail) - Distributor	4 Months Ended	12 Months Ended
	Apr. 22, 2017	Dec. 31, 2016	Sep. 28, 2016	Apr. 03, 2012
Fair Value Disclosures [Line Items]
Number of independent distributors	3,600
Derivative, fixed interest rate			3.50%	4.375%
2026 Notes
Fair Value Disclosures [Line Items]
Derivative, fixed interest rate	3.50%
Senior notes due year	2026	2026
2022 Notes
Fair Value Disclosures [Line Items]
Derivative, fixed interest rate	4.375%
Senior notes due year	2022	2022
Maximum
Fair Value Disclosures [Line Items]
Financing period of distribution rights, years	10 years