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Net Investment in Leases - Net Investment in Leases (Details) - USD ($) $ in Thousands | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021 | Dec. 31, 2020
Leases [Abstract] |  |  |  |  |  |
Total undiscounted cash flows | $ 356,302 |  |  | $ 524,712 |  |
Unguaranteed estimated residual value | 21,750 |  |  | 42,000 |  |
Present value discount | (345,673) |  |  | (523,497) |  |
Allowance for losses on net investment in leases | 380 | $ 9,005 | $ 281 | 0 | $ 9,270 | $ 10,871
Net investment in leases | 31,999 |  |  | $ 43,215 |  |
Impairment of net lease assets | $ 1,500 | $ 1,500 |  |  |  |

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- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919379-209981 + Details
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