Note 8 - Revenue - Disaggregated Revenue by Revenue Source (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revnue	$ 1,914,503	$ 1,710,703	$ 3,739,604	$ 3,202,570
Commercial Vehicle [Member]
Revnue	1,250,794	1,098,255	2,412,519	2,033,974
Parts [Member]
Revnue	379,444	361,562	764,898	692,304
Commercial Vehicle Repair Service [Member]
Revnue	271,685	236,736	534,458	449,257
Financial Service [Member]
Revnue	2,978	4,578	6,500	9,067
Insurance [Member]
Revnue	3,212	3,177	6,260	6,213
Product and Service, Other [Member]
Revnue	$ 6,390	$ 6,395	$ 14,969	$ 11,755