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NATURE OF OPERATIONS - Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Disaggregation of Revenue |  |  |  |
Incremental costs of obtaining a contract |  |  | true |
Product sales | $ 48,678 | $ 48,300 | $ 155,563 | $ 121,689
Dealer commission, reimbursed dealer expenses and other similar costs | 2,711 | 3,978 | $ 8,964 | 8,976
Annual curtail payment period |  |  | 2 years |
Period required to pay off remaining principle balance |  |  | 3 years |
Revenue from contract with customer product and service benchmark | Customer concentration risk | Independent third party and affiliates |  |  |  |
Disaggregation of Revenue |  |  |  |
Product sales | $ 5,226 | $ 2,335 | $ 11,420 | $ 7,399
Concentration risk percentage | 10.70% | 4.80% | 7.30% | 6.10%
Minimum |  |  |  |
Disaggregation of Revenue |  |  |  |
Term of lease agreement | 96 months |  | 96 months |
Maximum |  |  |  |
Disaggregation of Revenue |  |  |  |
Term of lease agreement | 120 months |  | 120 months |

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