CREDIT LOSSES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($)
Credit losses
Number of exchanges | item	6
Allowance balance at beginning of period	$ 32.3	$ 31.1
Current period provision for expected credit losses	4.0	1.6
Write-offs charged against the allowance	(1.6)	(0.1)
Recoveries collected	(0.1)	(0.3)
Allowance balance at end of period	34.6	32.3
Notes receivable
Credit losses
Allowance balance at beginning of period	30.1	30.1
Allowance balance at end of period	30.1	30.1
Accounts receivable
Credit losses
Allowance balance at beginning of period	2.2	1.0
Current period provision for expected credit losses	4.0	1.6
Write-offs charged against the allowance	(1.6)	(0.1)
Recoveries collected	(0.1)	(0.3)
Allowance balance at end of period	$ 4.5	$ 2.2