Note 9 - Revenue - Disaggregated Revenue by Revenue Source (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue	$ 1,778,598	$ 1,203,832	$ 4,981,168	$ 3,632,030
Commercial Vehicle [Member]
Revenue	1,142,201	729,344	3,176,175	2,274,332
Parts [Member]
Revenue	373,207	274,551	1,080,552	778,479
Commercial Vehicle Repair Service [Member]
Revenue	248,923	188,469	683,139	545,804
Financial Service [Member]
Revenue	4,113	3,757	13,211	12,210
Insurance [Member]
Revenue	3,526	3,094	9,708	8,513
Product and Service, Other [Member]
Revenue	$ 6,628	$ 4,617	$ 18,383	$ 12,692