PREPAID EXPENSES AND OTHER - Prepaid Expenses and Other Current Assets (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Chassis converter pool agreements	$ 33,842,000	$ 20,345,000
Assets held for sale	0	0
Income tax receivables	5,068,000	2,358,000
Insurance premiums & maintenance/subscription agreements	9,076,000	3,949,000
Commodity swap contracts	521,000	2,674,000
All other	6,912,000	5,601,000
Prepaid expenses and other current assets	55,419,000	34,927,000
Restricted cash	$ 0	$ 0