Inventories Components (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jan. 02, 2015
Certain Balance Sheet Information [Line Items]
Deferred costs of revenue included in finished goods	$ 10.4us-gaap_DeferredCostsCurrent	$ 9.4us-gaap_DeferredCostsCurrent

Sum of the carrying amounts as of the balance sheet date of deferred costs capitalized at the end of the reporting period that are expected to be charged against earnings within one year or the normal operating cycle, if longer.

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 210.5-02.8)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DeferredCostsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant