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COMMITMENTS AND CONTINGENCIES (Details) € in Thousands, $ in Thousands									3 Months Ended		12 Months Ended
	Jan. 18, 2024 USD ($)	Sep. 21, 2023 USD ($)	Aug. 21, 2023 USD ($)	Jan. 20, 2022 USD ($)	Dec. 22, 2021 EUR (€)	Jun. 30, 2021 USD ($)	Aug. 26, 2020 USD ($)	Aug. 10, 2020 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	May 10, 2023 USD ($)
Related Party Transaction [Line Items]
Funding fees, percentage	2.00%
Credit agreement, quarterly payable, cash percentage	50.00%
Credit agreement, quarterly payable, penny warrant percentage	50.00%
Services and fees									$ 257,303	$ 235,559
Long-term purchase commitment, amount									15,000
Sorrento vs. BRCC | Pending Litigation
Related Party Transaction [Line Items]
Loss contingency, damages sought, value		$ 32,166
Freedom VCM Holdings, LLC | Equity Commitment
Related Party Transaction [Line Items]
Other commitment												$ 560,000
Payment Guarantee
Related Party Transaction [Line Items]
Guarantor obligations, maximum exposure, undiscounted	$ 150,000
Guarantor obligations, current carrying value											$ 90,000
Guarantor obligation, decrease									22,500		10,000
Babcock & Wilcox Enterprises, Inc.
Related Party Transaction [Line Items]
Indemnity amount					€ 30,000			$ 29,970			$ 5,994
Payments for other fees				$ 1,694
Indemnity rider received							$ 600
Babcock & Wilcox Enterprises, Inc. | Guarantees
Related Party Transaction [Line Items]
Services fees						$ 935
Babcock & Wilcox Enterprises, Inc. | Maximum | Guarantees
Related Party Transaction [Line Items]
Contractual obligation						$ 110,000			$ 67,500
Related Party | Freedom VCM Holdings, LLC | Equity Commitment
Related Party Transaction [Line Items]
Services and fees			$ 16,500

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