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Quarterly report pursuant to Section 13 or 15(d)

REVENUE (Deferred Revenue) (Details)

v3.19.3
REVENUE (Deferred Revenue) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Other Current Liabilities [Member] Ìý Ìý Ìý Ìý
Deferred Revenue Arrangement [Line Items] Ìý Ìý Ìý Ìý
Contract with Customer, Liability, Current $ 18.3 $ 16.1 $ 21.0 $ 23.8
Contract With Customer, Liability, Period Increase (Decrease) (2.7) (7.7) Ìý Ìý
Other Noncurrent Liabilities [Member] Ìý Ìý Ìý Ìý
Deferred Revenue Arrangement [Line Items] Ìý Ìý Ìý Ìý
Contract with Customer, Liability, Noncurrent 30.0 42.8 $ 38.5 $ 51.4
Contract With Customer, Liability, Period Increase (Decrease) $ (8.5) $ (8.6) Ìý Ìý