CREDIT LOSSES (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Credit losses
Balance, at beginning of period	$ 30.7
Current period provision for expected credit losses	0.5
Write-offs charged against the allowance	(0.2)
Balance, at end of period	31.0
Notes receivable
Credit losses
Balance, at beginning of period	30.1
Balance, at end of period	30.1
Accounts receivable
Credit losses
Balance, at beginning of period	0.6
Current period provision for expected credit losses	0.5
Write-offs charged against the allowance	(0.2)
Balance, at end of period	$ 0.9