Accumulated Other Comprehensive Income (Changes In Other Comprehensinve Income) (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 28, 2015	Jun. 29, 2014		Jun. 28, 2015		Jun. 29, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		$ (522,161)	$ (323,929)		$ (514,943)		$ (332,676)
Other comprehensive (loss) income before reclassifications		3,740	10,735		6,191		11,200
Income tax		307	2,617		(9,354)		(945)
Net other comprehensive (loss) income before reclassifications		3,433	8,118		(3,163)		10,255
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(6,031)	(10,735)		(7,018)		21,235
Comprehensive Income (Loss), Reclassifications, Tax		(2,233)	3,975		2,598		(7,865)
Net reclassifications		(3,798)	(6,760)		(4,420)		13,370
Other comprehensive (loss) income		(365)	14,878		(7,583)		23,625
Balance, end of period		(522,526)	(309,051)		(522,526)		(309,051)
Prior Service Costs [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		695	684	[1]	(1,390)	[1]	(1,368)	[1]
Actuarial Losses [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(14,670)	(10,323)	[1]	29,340	[1]	20,645	[1]
Foreign Currency Contracts [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		20,131	(1,183)	[2]	(35,407)	[2]	2,241	[2]
Commodity Contract [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(125)	87	[2]	439	[2]	(283)	[2]
Accumulated Translation Adjustment [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(30,503)	36,274		(3,482)		33,326
Other comprehensive (loss) income before reclassifications		5,040	6,945		(24,951)		8,700
Income tax		789	1,212		2,181		19
Net other comprehensive (loss) income before reclassifications		4,251	5,733		(22,770)		8,681
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	0		0		0
Comprehensive Income (Loss), Reclassifications, Tax		0	0		0		0
Net reclassifications		0	0		0		0
Other comprehensive (loss) income		4,251	5,733		(22,770)		8,681
Balance, end of period		(26,252)	42,007		(26,252)		42,007
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(767)	(318)		(700)		(276)
Other comprehensive (loss) income before reclassifications		(204)	(117)		(310)		(184)
Income tax		(76)	(43)		115		(68)
Net other comprehensive (loss) income before reclassifications		(128)	(74)		(195)		(116)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	0		0		0
Comprehensive Income (Loss), Reclassifications, Tax		0	0		0		0
Net reclassifications		0	0		0		0
Other comprehensive (loss) income		(128)	(74)		(195)		(116)
Balance, end of period		(895)	(392)		(895)		(392)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		30,114	(1,907)		19,042		(1,680)
Other comprehensive (loss) income before reclassifications		(1,096)	3,907		31,452		2,684
Income tax		(406)	1,448		(11,650)		(994)
Net other comprehensive (loss) income before reclassifications		(690)	2,459		19,802		1,690
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(20,006)	(1,096)		(34,968)		1,958
Comprehensive Income (Loss), Reclassifications, Tax		(7,410)	405		12,952		(725)
Net reclassifications		(12,596)	(691)		(22,016)		1,233
Other comprehensive (loss) income		(13,286)	3,150		(2,214)		2,923
Balance, end of period		16,828	1,243		16,828		1,243
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Foreign Currency Contracts [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[2]	20,131	(1,183)		(35,407)		2,241
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Commodity Contract [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[2]	(125)	87		439		(283)
Accumulated Defined Benefit Plans Adjustment [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		(521,005)	(357,978)		(529,803)		(364,046)
Other comprehensive (loss) income before reclassifications		0	0		0		0
Income tax		0	0		0		0
Net other comprehensive (loss) income before reclassifications		0	0		0		0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		13,975	(9,639)		27,950		19,277
Comprehensive Income (Loss), Reclassifications, Tax		5,177	3,570		(10,354)		(7,140)
Net reclassifications		8,798	(6,069)		17,596		12,137
Other comprehensive (loss) income		8,798	6,069		17,596		12,137
Balance, end of period		(512,207)	(351,909)		(512,207)		(351,909)
Accumulated Defined Benefit Plans Adjustment [Member] | Prior Service Costs [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		695	684		(1,390)	[1]	1,368
Accumulated Defined Benefit Plans Adjustment [Member] | Actuarial Losses [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		$ (14,670)	$ (10,323)		$ 29,340	[1]	$ (20,645)

[1] Amounts reclassified are included in the computation of net periodic period cost. See Note 14 for information related to pension and postretirement benefit plans.

[2] Amounts reclassified to net income are included in Motorcycles and Related Products cost of goods sold.