ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - REVENUE RECOGNITION (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue recognized which was previously deferred	$ 2.3	$ 2.1
Remaining performance obligations	25.0		$ 25.0
Deferred commissions, net of accumulated amortization	$ 0.6		$ 0.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	35.50%
Remaining performance obligation period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	28.80%
Remaining performance obligation period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	20.50%
Remaining performance obligation period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	11.40%
Remaining performance obligation period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations (as a percent)	3.80%
Remaining performance obligation period
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Period fees are due for adjustable rebate contracts	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	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