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NATURE OF OPERATIONS - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue
Incremental costs of obtaining a contract			true
Product sales	$ 55,098	$ 41,115	$ 106,885	$ 73,389
Dealer commission, reimbursed dealer expenses and other similar costs	3,253	3,206	6,252	5,407
Revenue from contract with customer product and service benchmark | Customer concentration risk | Independent third party and affiliates
Disaggregation of Revenue
Product sales	$ 3,296	$ 2,643	$ 6,194	$ 4,948
Concentration risk percentage	6.00%	6.40%	5.80%	6.70%
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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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