SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	3 Months Ended					12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Restricted cash		$ 0				$ 0	$ 0
Goodwill		188,443,000			$ 199,560,000	188,434,000	188,443,000	$ 199,560,000
Asset impairment	$ 1,000,000			$ 800,000		1,339,000	29,163,000	107,114,000
Capitalized computer software, net		4,200,000				3,300,000	4,200,000
Capitalized computer software, amortization						1,800,000	1,700,000	2,000,000
Research and development expense						$ 5,300,000	13,600,000	21,900,000
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]						Impairment and other, net
Trade names and trademarks
Property, Plant and Equipment [Line Items]
Asset impairment		28,300,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Extract Technology
Property, Plant and Equipment [Line Items]
Impairment of intangible assets			$ 1,300,000		1,100,000
Transportation Solutions
Property, Plant and Equipment [Line Items]
Goodwill		120,507,000			$ 120,518,000	$ 120,502,000	120,507,000	$ 120,518,000
Transportation Solutions | Trade names and trademarks
Property, Plant and Equipment [Line Items]
Asset impairment		25,600,000
Parts & Services
Property, Plant and Equipment [Line Items]
Goodwill						$ 67,900,000
Parts & Services | Trade names and trademarks
Property, Plant and Equipment [Line Items]
Asset impairment		2,700,000
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						33 years
Used trailers
Property, Plant and Equipment [Line Items]
Accounts payable, trade		$ 0				$ 0	$ 0
Construction in progress
Property, Plant and Equipment [Line Items]
Impairment, long-lived asset, held-for-use	$ 1,000,000
Minimum
Property, Plant and Equipment [Line Items]
Capitalized computer software, amortization period						3 years
Standard product warranty, coverage period						1 year
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						3 years
Maximum
Property, Plant and Equipment [Line Items]
Capitalized computer software, amortization period						7 years
Standard product warranty, coverage period						5 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life						10 years
DuraPlate Trailer Panels
Property, Plant and Equipment [Line Items]
Standard product warranty, coverage period						10 years