Current Expected Credit Losses ("CECL") - Year of Origination of Notes and Financing Receivables (Details) $ in Millions	Mar. 31, 2022 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivables:	$ 70.9
Total
Financing Receivable, Credit Quality Indicator [Line Items]
2022	3.2
2021	14.8
2020	1.9
2019	1.0
2018	0.0
2017	5.5
Prior	41.9
Financing receivables:	68.3
Notes receivable, short and long-term
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0.3
2021	12.2
2020	0.5
2019	0.2
2018	0.0
2017	5.5
Prior	0.1
Financing receivables:	18.8
Lease Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2022	2.9
2021	2.6
2020	1.4
2019	0.8
2018	0.0
2017	0.0
Prior	10.0
Financing receivables:	17.7
Equipment Notes
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0.0
2021	0.0
2020	0.0
2019	0.0
2018	0.0
2017	0.0
Prior	31.8
Financing receivables:	$ 31.8