Finance Lease Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Capital Leases, Future Minimum Payments Due Thereafter	$ 6.4
2021	5.8
2022	14.1
2023	6.5
2024	6.0
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Five	5.5
Capital Leases Net Investment In Sales Type Leases Receivable Net	42.8	$ 42.5
Capital Leases, Future Minimum Payments Receivable	44.3
Financing Receivable, Allowance for Credit Losses	0.3	0.2
Sales-type Lease, Unguaranteed Residual Asset	0.2	0.2
Capital Leases Net Investment In Sales Type Leases Minimum Payments To Be Received And Unguaranteed Residual Values	44.2	44.0
Capital Leases Net Investment In Sales Type Leases Unearned Interest Income	1.4	1.5
Finance Leases Portfolio Segment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Capital Leases, Future Minimum Payments Receivable	$ 44.3	$ 44.0

Capital Leases Net Investment In Sales Type Leases Minimum Payments To Be Received And Unguaranteed Residual Values

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Capital Leases Net Investment In Sales Type Leases Receivable Net

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Capital Leases Net Investment In Sales Type Leases Unearned Interest Income

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Present value expected to be derived from underlying asset following end of lease term not guaranteed by lessee or other third party unrelated to lessor.

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