Fair Value of Financial Instruments - Additional Information (Detail) $ in Thousands	12 Months Ended
Jan. 02, 2016 USD ($) Distributor	Jan. 03, 2015 USD ($) Distributor
Fair Value Disclosures [Line Items]
Number of independent distributors distribution rights \| Distributor	3,400	3,700
Long term debt carrying value	$ 399,400	$ 399,304
Four Point Three Seven Five Senior Notes
Fair Value Disclosures [Line Items]
Debt Obligations	$ 416,100
Maximum
Fair Value Disclosures [Line Items]
Financing period of distribution rights, years	10 years

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_SeniorLongTermNotes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant