Revenue and Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net Sales	$ 268,635	$ 285,186	$ 583,083	$ 547,120
Wholegoods
Disaggregation of Revenue [Line Items]
Net Sales	206,858	229,069	450,389	437,103
Parts
Disaggregation of Revenue [Line Items]
Net Sales	57,682	49,617	117,292	97,871
Other
Disaggregation of Revenue [Line Items]
Net Sales	$ 4,095	$ 6,500	$ 15,402	$ 12,146