Net Investment in Finance Leases Net Investment in Finance Leases - Credit Loss Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 9,865	$ 0	$ 0
Provision for Loan and Lease Losses	1,206	3,595	4,801	$ 0
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,972	$ 9,865	$ 2,972
Allowance for Loan and Lease Losses, Write-offs	$ 8,099

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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- Definition

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

+ References

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-Publisher FASB
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

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