ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - REVENUE RECOGNITION (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue recognized which was previously deferred	$ 2.1	$ 1.9	$ 6.5	$ 6.0
Remaining performance obligations	25.8		25.8		$ 25.0
Deferred commissions, net of accumulated amortization	$ 0.5		$ 0.5		$ 0.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	36.60%		36.60%
Remaining performance obligation period	12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	29.00%		29.00%
Remaining performance obligation period	12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	19.90%		19.90%
Remaining performance obligation period	12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	11.10%		11.10%
Remaining performance obligation period	12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	3.40%		3.40%
Remaining performance obligation period
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Period fees are due for adjustable rebate contracts (in days)			30 days
Duration over which software maintenance, hardware maintenance, and subscription services are generally transferred			3 years
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Period fees are due for adjustable rebate contracts (in days)			60 days
Duration over which software maintenance, hardware maintenance, and subscription services are generally transferred			5 years
Interactive devices | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Hardware maintenance services terms (in months)			30 months
Interactive devices | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Hardware maintenance services terms (in months)			60 months
Non-interactive projectors
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Hardware maintenance services terms (in months)			60 months