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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets Measured at Fair Value on a Nonrecurring Basis (Details) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Impairment Charges
Operating right-of-use assets	$ (8,400)		$ (8,400)
Intangible assets - finite-lived, Impairment charges			1,091
Impairment charges	(85,266)		(85,266)
Vaux Equipment and other assets
Impairment Charges
Impairment charges	(50,800)		(50,800)
Patents
Impairment Charges
Intangible assets - finite-lived, Impairment charges			1,100	$ 1,100
Other and eliminations \| Vaux Equipment and other assets
Impairment Charges
Impairment charges	(50,800)		(50,800)
Asset-Light \| Trade name
Impairment Charges
Intangible assets - indefinite-lived, impairment charges	25,700	$ 6,600
Asset-Light \| Operating Segments
Impairment Charges
Impairment charges	(34,503)		(34,503)
Asset-Light \| Operating Segments \| Leaseholds
Impairment Charges
Impairment charges	(8,800)		(8,800)
Asset-Light \| Operating Segments \| Trade name
Impairment Charges
Intangible assets - indefinite-lived, impairment charges	25,700		25,700
Asset-Light \| Other and eliminations
Impairment Charges
Impairment charges	$ (8,800)		(8,800)
Level 3 \| Nonrecurring basis
Impairment Charges
Other current assets			(3,284)
Service, office and other equipment			(45,722)
Software			(666)
Operating right-of-use assets			(8,363)
Intangible assets - indefinite-lived, impairment charges			25,660
Intangible assets - finite-lived, Impairment charges			(1,091)
Leasehold improvements			(480)
Impairment charges			$ (85,266)
Discount rate	9		9
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Level 3 \| Nonrecurring basis \| Vaux Equipment and other assets
Impairment Charges
Impairment charges			$ (50,800)
Level 3 \| Nonrecurring basis \| Trade name
Impairment Charges
Intangible assets - indefinite-lived, impairment charges			25,700
Level 3 \| Nonrecurring basis \| Carrying Value
Assets:
Other current assets	$ 3,284		3,284
Service, office and other equipment	48,402		48,402
Software	666		666
Operating right-of-use assets	14,371		14,371
Intangible assets - indefinite-lived	25,660		25,660
Intangible assets - finite-lived	1,091		1,091
Leasehold improvements	824		824
Assets	94,298		94,298
Level 3 \| Nonrecurring basis \| Fair Value
Assets:
Service, office and other equipment	2,680		2,680
Operating right-of-use assets	6,008		6,008
Leasehold improvements	344		344
Assets	$ 9,032		$ 9,032