Schedule II - Valuation and Qualifying Accounts (Detail) - Reserves for Excess and Obsolete Inventory [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	$ 4,450	$ 3,419	$ 4,417
Charged to costs And expenses	11,660	12,107	10,746
Charged To other accounts	0	0	0
Deductions net of recoveries	(10,250)	(11,076)	(11,744)
Balance at end of period	$ 5,860	$ 4,450	$ 3,419

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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