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 |
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|