Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Balance, beginning of period	$ 54,182
Balance, end of period	53,391	$ 54,182
Motorcycles
Goodwill [Roll Forward]
Balance, beginning of period	54,182	27,752	$ 30,452
Business acquisitions	0	28,567	0
Currency translation	(791)	(2,137)	(2,700)
Balance, end of period	$ 53,391	$ 54,182	$ 27,752