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Allowance for Doubtful Accounts - Allowance for Bad Debts (Details) $ in Millions | 3 Months Ended
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Dec. 31, 2020 USD ($)
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance as of September 30, 2020 | $ 27.1
Provision for bad debts | 1.5
Allowance charge-offs | 0.0
Balance as of December 31, 2020 | 36.8
Cumulative Effect, Period of Adoption, Adjustment |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance as of September 30, 2020 | 8.2
Cumulative Effect, Period of Adoption, Adjusted Balance |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance as of September 30, 2020 | $ 35.3

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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