Revenue and Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net Sales	$ 347,550	$ 268,635	$ 658,739	$ 583,083
Wholegoods
Disaggregation of Revenue [Line Items]
Net Sales	270,665	206,858	509,963	450,389
Parts
Disaggregation of Revenue [Line Items]
Net Sales	67,067	57,682	127,592	117,292
Other
Disaggregation of Revenue [Line Items]
Net Sales	$ 9,818	$ 4,095	$ 21,184	$ 15,402