FINANCE RECEIVABLES - Finance Receivables, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables transferred as sales	$ 19.5	$ 75.3	$ 52.6	$ 118.5
Loans receivables held-for-sale	16.0		16.0			$ 17.6
Total finance receivables	148.2		148.2			166.2
Allowance for credit losses	(14.4)	(12.1)	(14.4)	(12.1)	$ (14.8)	(11.0)	$ (12.6)	$ (5.5)
Total finance receivables, net	133.8		133.8			155.2
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	130.6		130.6			145.7
Allowance for credit losses	(13.9)	(10.9)	(13.9)	(10.9)	(14.3)	(10.5)	(11.4)	(4.0)
Sales-type leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	17.6		17.6			20.5
Allowance for credit losses	(0.5)	$ (1.2)	(0.5)	$ (1.2)	$ (0.5)	(0.5)	$ (1.2)	$ (1.5)
Prepaid Expenses and Other Current Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables, net	47.0		47.0			52.0
Other assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables, net	$ 87.0		$ 87.0			$ 103.0