Inventories - Summary of Inventories (Parenthetical) (Detail) $ in Millions	Jan. 03, 2015 USD ($)
Adjustments [Member]
Inventory [Line Items]
Decrease to inventories	$ (8.9)

The increase (decrease) during the reporting period in the book value of finished goods inventory and work in process inventory.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Name:	us-gaap_IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration