FINANCE RECEIVABLES - Allowance for Credit Losses on Finance Receivable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 12.1	$ 4.5	$ 5.5	$ 6.6
Provision for credit losses	(0.2)	0.0	6.4	(1.0)
Charge offs	(0.8)	0.0	(0.8)	(1.1)
Balance, end of period	11.1	4.5	11.1	4.5
Commercial loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	10.9	3.0	4.0	5.7
Provision for credit losses	0.3	0.0	7.2	(1.6)
Charge offs	(0.8)	0.0	(0.8)	(1.1)
Balance, end of period	10.4	3.0	10.4	3.0
Sales-type leases
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	1.2	1.5	1.5	0.9
Provision for credit losses	(0.5)	0.0	(0.8)	0.6
Charge offs	0.0	0.0	0.0	0.0
Balance, end of period	$ 0.7	$ 1.5	$ 0.7	$ 1.5