New Accounting Standards Financing Receivable Credit Quality Indicators (Details) $ in Millions	Sep. 30, 2020 USD ($)
Financial Asset Originated
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	$ 225.4
Moody's, Ba2 Rating
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	154.6
Moody's, B3 Rating
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	$ 70.8