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Quarterly report pursuant to Section 13 or 15(d)

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Allowance for Credit Losses) (Details)

v3.20.1
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Allowance for Credit Losses) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward] Ìý Ìý
Accounts Receivable, Allowance for Credit Loss $ 0.0 $ 0.0
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) 1.2 0.0
Accounts Receivable, Allowance for Credit Loss $ 1.2 $ 0.0