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v3.20.2

Allowance for Doubtful Accounts - Notes Receivable Disaggregated by Vintage Year (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2020 USD ($)
Current-period gross write-offs |  |
2020 |  | $ 0
2019 |  | 0
2018 |  | 411
2017 |  | 0
2016 |  | 1,970
Prior |  | 40
Current-period gross write-offs | $ 253 | 2,421
Current-period recoveries |  |
2020 |  | 0
2019 |  | 0
2018 |  | 0
2017 |  | 0
2016 |  | 0
Prior |  | 0
Current-period recoveries |  | 0
Current-period net write-offs |  |
2020 |  | 0
2019 |  | 0
2018 |  | 411
2017 |  | 0
2016 |  | 1,970
Prior |  | 40
Current-period net write-offs |  | 2,421
Standard notes receivable |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 7,007 | 7,007
2019 | 11,716 | 11,716
2018 | 17,608 | 17,608
2017 | 26,260 | 26,260
2016 | 28 | 28
Prior | 1,598 | 1,598
Total | 64,217 | 64,217
Current-period gross write-offs |  |
Current-period gross write-offs | 253 | 1,974
Elevated risk notes receivable |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 603 | 603
2018 | 0 | 0
2017 | 5,511 | 5,511
2016 | 0 | 0
Prior | 2,421 | 2,421
Total | 8,535 | 8,535
Current-period gross write-offs |  |
Current-period gross write-offs | $ 0 | $ 447

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