ACCOUNTS AND OTHER RECEIVABLES - Allowance for Doubtful Account (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at December 31, 2017	$ 4.9
Add: Charges	0.2	$ 1.6
Less: Net Charge-offs/ (Recoveries)	0.2
Balance at March 31, 2018	4.9
Total trade receivables
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at December 31, 2017	4.9
Add: Charges	0.2
Less: Net Charge-offs/ (Recoveries)	0.2
Balance at March 31, 2018	4.9
Trade accounts receivable
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at December 31, 2017	4.7
Add: Charges	0.3
Less: Net Charge-offs/ (Recoveries)	0.2
Balance at March 31, 2018	4.8
Trade notes receivable
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at December 31, 2017	0.2
Add: Charges	(0.1)
Less: Net Charge-offs/ (Recoveries)	0.0
Balance at March 31, 2018	0.1
Other notes receivable
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at December 31, 2017	0.0
Add: Charges	0.0
Less: Net Charge-offs/ (Recoveries)	0.0
Balance at March 31, 2018	$ 0.0