Inventories Additional Information (Details) (USD $) In Millions, unless otherwise specified	Apr. 04, 2015	Jan. 03, 2015
LIFO Method Related Items [Abstract]
Inventory under the LIFO method	$ 31.4us-gaap_LIFOInventoryAmount	$ 30.2us-gaap_LIFOInventoryAmount
Percentage of LIFO inventory to total inventory	11.40%us-gaap_PercentageOfLIFOInventory	11.80%us-gaap_PercentageOfLIFOInventory

The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766

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