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Investments Finance Lease Receivables - Minimum Lease Receivables Schedule (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Finance Lease Receivables - Minimum Lease Receivables Schedule [Abstract]  
2019 $ 7.0
2020 6.6
2021 7.2
2022 6.4
2023 6.3
Thereafter 2.4
Capital Leases, Future Minimum Payments Due $ 35.9