Acquisition (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Aug. 04, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 59,910	$ 0
Goodwill	54,267	28,638		$ 27,752
Motorcycles [Member]
Business Acquisition [Line Items]
Goodwill, Purchase Accounting Adjustments	28,567	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets			$ 11,088
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			144
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			20,842
Goodwill	54,267	28,638	28,567	$ 27,752	$ 30,452
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets			60,641
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities			731
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			$ 59,910
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized	$ 3,300
Distribution Rights [Member] | Motorcycles [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		13,300
Finite-Lived Intangible Asset, Useful Life	2 years
Other Intangible Assets [Member] | Motorcycles [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 7,500
Finite-Lived Intangible Asset, Useful Life	20 years