SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Breakdown of net revenue related to devices accounted for as purchases subject to ASC 606 and leases subject to ASC 842 (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Breakdown of disaggregated net revenues
Total revenue	$ 49,915	$ 41,520	$ 137,037	$ 109,362
Device revenue
Breakdown of disaggregated net revenues
Purchased	7,022	2,900	16,444	7,357
Leased	9,833	8,449	26,098	20,222
Total revenue	16,855	11,349	42,542	27,579
Supplies revenue
Breakdown of disaggregated net revenues
Total revenue	$ 33,060	$ 30,171	$ 94,495	$ 81,783