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BASIS OF PRESENTATION - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total Device revenue	$ 31,083	$ 24,127
Devices
Purchased	2,188	2,332
Leased	4,537	4,033
Total Device revenue	$ 6,725	$ 6,365

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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