Restructuring Expense (Summary Of Restructuring Plan Reserve Activity Related To 2009 Plan) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jul. 01, 2012	Dec. 31, 2011	Jun. 26, 2011	Jul. 01, 2012	Jun. 26, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 6,220		$ 13,594	$ 17,671	$ 36,593
Noncash reserve release		43,500
2009 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period				10,089	26,582
Restructuring expense				11,219	22,780
Utilized-cash				(12,766)	(28,500)
Utilized-noncash					253
Noncash reserve release				(2,027)
Balance, end of period	6,515		21,115	6,515	21,115
2009 Restructuring Plan [Member] | Motorcycles And Related Products [Member] | Employee Serverance And Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period				10,089	23,818
Restructuring expense				331	3,504
Utilized-cash				(1,878)	(8,159)
Noncash reserve release				(2,027)
Balance, end of period	6,515		19,163	6,515	19,163
2009 Restructuring Plan [Member] | Motorcycles And Related Products [Member] | Other [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period					2,764
Restructuring expense				10,888	19,276
Utilized-cash				(10,888)	(20,341)
Utilized-noncash					253
Balance, end of period			$ 1,952		$ 1,952