The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6365675&loc=d3e16285-107787

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 01-13

-Paragraph 7

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

Insurance Claims (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended
Insurance Claims (Details) (USD $)	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013 Wynne Arkansas Manufacturing Operation [Member]	Jun. 29, 2013 Wynne Arkansas Manufacturing Operation [Member]	Mar. 31, 2012 Fulton Mississippi Copper Tube Facility [Member]
Business Interruption Loss [Line Items]
Proceeds from settlement of insurance claim						$ 127,300,000	$ 1,500,000
Deductible for insurance claim						500,000
Pre-tax gain on insurance settlement	$ 106,332,000	$ 0	$ 106,332,000	$ 1,500,000	$ 106,332,000
Gain on settlement on a per share basis					$ 2.33