Commitment And Contingencies (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 25, 2011
Commitment And Contingencies [Line Items]
Estimate of company's share of York environmental matters	$ 4.3
Navy [Member]
Commitment And Contingencies [Line Items]
Portion of settlement contribution percentage	53.00%
Harley Davidson, Inc. [Member]
Commitment And Contingencies [Line Items]
Portion of settlement contribution percentage	47.00%

Best estimate of the loss exposure for reasonably possible environmental contingencies at an individual site for which no accrual has been recorded.

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 96-1

-Paragraph 163

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 10

-Subparagraph (c),(d)(2)

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

Name:	us-gaap_SiteContingencyLossExposureNotAccruedBestEstimate
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration