THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES - Debt repurchase transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Gain on Extinguishment	$ 142.8	$ (92.8)	$ (14.1)
Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Accrued interest paid		4.5
5.875% Senior Subordinated Notes due 2026
Debt Instrument [Line Items]
Stated interest rate (as a percent)	5.875%
Related and Non-Related parties | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	$ 219.7
Reacquisition Cost	141.6
Gain on Extinguishment	114.5
Accrued interest paid	5.7
Related Party | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	80.0
Reacquisition Cost	50.2
Gain on Extinguishment	43.2
Accrued interest paid	1.2
Nonrelated Party | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	139.7
Reacquisition Cost	91.4
Gain on Extinguishment	71.3
Accrued interest paid	4.5
Second Lien Notes due 2026 | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased		118.3
Repurchase amount		68.3
Reacquisition Cost		1.6
Gain on Extinguishment		75.0
Second Lien Notes due 2026 | Related Party | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	75.9
Reacquisition Cost	48.5
Gain on Extinguishment	40.9
Accrued interest paid	1.1
Second Lien Notes due 2026 | Nonrelated Party
Debt Instrument [Line Items]
Aggregate Principal Repurchased	139.7
Repurchase amount	91.4
Gain on Extinguishment	71.3
Second Lien Notes due 2026 | Nonrelated Party | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	139.7
Reacquisition Cost	91.4
Gain on Extinguishment	71.3
Accrued interest paid	4.5
Senior Subordinated Notes due 2027 [Member] | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Repurchase amount		5.3
Gain on Extinguishment		$ 3.7
5.875% Senior Subordinated Notes due 2026 | Related Party | Cash Debt Repurchase [Member]
Debt Instrument [Line Items]
Aggregate Principal Repurchased	4.1
Reacquisition Cost	1.7
Gain on Extinguishment	2.3
Accrued interest paid	$ 0.1