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Quarterly report pursuant to Section 13 or 15(d)

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Deferred Revenue (Details)

v3.20.2
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Deferred Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Ìý Ìý Ìý Ìý
Realization of deferred revenue $ 0.0 $ 0.0 $ 34.6 $ 0.0
Other Current Liabilities [Member] Ìý Ìý Ìý Ìý
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Ìý Ìý Ìý Ìý
Opening balance as of January 1 Ìý Ìý 22.1 21.0
Net decrease Ìý Ìý (19.8) (2.7)
Closing balance as of September 30 2.3 18.3 2.3 18.3
Other Noncurrent Liabilities [Member] Ìý Ìý Ìý Ìý
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Ìý Ìý Ìý Ìý
Opening balance as of January 1 Ìý Ìý 25.7 38.5
Net decrease Ìý Ìý (25.7) (8.5)
Closing balance as of September 30 $ 0.0 $ 30.0 $ 0.0 $ 30.0