Current Expected Credit Losses - Year of Origination of Financing Receivables (Details) $ in Millions	Mar. 31, 2021 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 2.2
2020	2.7
2019	3.5
2018	8.0
2017	6.3
2016	58.6
Total	81.3
Notes receivable, short-term
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2.2
2020	1.2
2019	2.6
2018	8.0
2017	6.3
2016	0.1
Total	20.4
Lease Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0.0
2020	1.5
2019	0.9
2018	0.0
2017	0.0
2016	17.7
Total	20.1
Equipment Notes
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0.0
2020	0.0
2019	0.0
2018	0.0
2017	0.0
2016	40.8
Total	$ 40.8

Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated four years prior to current fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to current fiscal year.

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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable originated two years prior to current fiscal year.

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Amount, before allowance for credit loss, of financing receivable.

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