SEGMENTS - Schedule of Major Product Categories and Percentage of Consolidated Net Sales (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Product Information [Line Items]
Net sales	$ 417,241	$ 458,816	$ 720,470	$ 839,706
New trailers
Product Information [Line Items]
Net sales	317,051	312,160	521,984	545,535
Used trailers
Product Information [Line Items]
Net sales	1,796	1,120	2,840	2,620
Components, parts and services
Product Information [Line Items]
Net sales	32,538	32,755	65,624	64,257
Equipment and other
Product Information [Line Items]
Net sales	65,856	112,781	130,022	227,294
Transportation Solutions
Product Information [Line Items]
Net sales	354,147	399,352	603,603	728,400
Parts & Services
Product Information [Line Items]
Net sales	63,094	59,464	116,867	111,306
Operating Segments \| Transportation Solutions
Product Information [Line Items]
Net sales	354,654	400,214	604,830	747,017
Operating Segments \| Transportation Solutions \| New trailers
Product Information [Line Items]
Net sales	317,516	312,931	522,963	563,976
Operating Segments \| Transportation Solutions \| Used trailers
Product Information [Line Items]
Net sales	0	0	0	0
Operating Segments \| Transportation Solutions \| Components, parts and services
Product Information [Line Items]
Net sales	0	0	0	0
Operating Segments \| Transportation Solutions \| Equipment and other
Product Information [Line Items]
Net sales	37,138	87,283	81,867	183,041
Operating Segments \| Parts & Services
Product Information [Line Items]
Net sales	63,387	59,744	117,456	111,699
Operating Segments \| Parts & Services \| New trailers
Product Information [Line Items]
Net sales	0	0		0
Operating Segments \| Parts & Services \| Used trailers
Product Information [Line Items]
Net sales	1,796	1,120	2,840	2,620
Operating Segments \| Parts & Services \| Components, parts and services
Product Information [Line Items]
Net sales	32,538	32,755	65,624	64,257
Operating Segments \| Parts & Services \| Equipment and other
Product Information [Line Items]
Net sales	29,053	25,869	48,992	44,822
Intersegment sales
Product Information [Line Items]
Net sales	(800)	(1,142)	(1,816)	(19,010)
Intersegment sales \| New trailers
Product Information [Line Items]
Net sales	(465)	(771)	(979)	(18,441)
Intersegment sales \| Used trailers
Product Information [Line Items]
Net sales	0	0	0	0
Intersegment sales \| Components, parts and services
Product Information [Line Items]
Net sales	0	0	0	0
Intersegment sales \| Equipment and other
Product Information [Line Items]
Net sales	(335)	(371)	(837)	(569)
Intersegment sales \| Transportation Solutions
Product Information [Line Items]
Net sales	(507)	(862)	(1,227)	(18,617)
Intersegment sales \| Parts & Services
Product Information [Line Items]
Net sales	$ (293)	$ (280)	$ (589)	$ (393)
Product Concentration Risk \| Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	100.00%	100.00%	100.00%	100.00%
Product Concentration Risk \| New trailers \| Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	76.00%	68.00%	72.50%	65.00%
Product Concentration Risk \| Used trailers \| Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	0.40%	0.20%	0.40%	0.30%
Product Concentration Risk \| Components, parts and services \| Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	7.80%	7.10%	9.10%	7.70%
Product Concentration Risk \| Equipment and other \| Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	15.80%	24.60%	18.00%	27.10%