LEASES (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 35.8	$ 35.8	$ 32.0
Operating Lease, Expense	$ 2.1	$ 6.3
Operating Lease, Weighted Average Remaining Lease Term	7 years	7 years
Operating Lease, Weighted Average Discount Rate, Percent	3.65%	3.65%
Operating Lease, Payments		$ (6.6)
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		9.3
Operating Leases, Future Minimum Payments Due under ASC 840				$ 6.3
Operating Leases, Future Minimum Payments, Due in Two Years				5.1
Operating Leases, Future Minimum Payments, Due in Three Years				4.5
Operating Leases, Future Minimum Payments, Due in Four Years				4.3
Operating Leases, Future Minimum Payments, Due in Five Years				4.2
Operating Leases, Future Minimum Payments, Due Thereafter				3.8
Operating Leases, Future Minimum Payments Due				$ 28.2
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 1.7	1.7
Lessee, Operating Lease, Liability, Payments, Due Year Two	7.5	7.5
Lessee, Operating Lease, Liability, Payments, Due Year Three	7.1	7.1
Lessee, Operating Lease, Liability, Payments, Due Year Four	6.9	6.9
Lessee, Operating Lease, Liability, Payments, Due Year Five	5.8	5.8
Lessee, Operating Lease, Liability, Payments, Due after Year Five	11.6	11.6
Lessee, Operating Lease, Liability, Payments, Due	40.6	40.6
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(4.9)	(4.9)
Operating Lease, Liability	35.7	35.7	$ 32.0
Operating Lease, Liability, Current	6.2	6.2
Operating Lease, Liability, Noncurrent	$ 29.5	$ 29.5
Lessee, Operating Lease, Option to Extend		10 years
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	15 years	15 years