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INVENTORY - Schedule of Inventories, Net of Reserves (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
INVENTORIES
Chassis	$ 47,135		$ 47,135		$ 36,930
Raw materials	65,293		65,293		77,358
Work in process	45,271		45,271		48,251
Finished goods	23,016		23,016		23,630
TOTAL INVENTORY	180,715		180,715		186,169
Impairment of inventory	0	$ 0	0	$ 0
Net of inventory reserves	$ 9,400		$ 9,400		$ 5,200

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of goods held by the company that are readily available for sale.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Amount of valuation reserve for inventory.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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