REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Number of reportable segments | segment			2
Net revenues	$ 89,782,000	$ 75,248,000	$ 186,490,000	$ 157,880,000
Unbilled receivables, current	10,400,000		10,400,000		$ 7,000,000
Contract with customer, liability, revenue recognized			5,600,000	5,000,000
Revenue, remaining performance obligation, amount	9,000,000		9,000,000
Revenue, Expected Remaining Performance Obligation, Amount	$ 4,300,000		$ 4,300,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months		12 months
Revenue, remaining performance obligation, amount	$ 4,700,000		$ 4,700,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year		1 year
Revenue, remaining performance obligation, amount	$ 2,300,000		$ 2,300,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year		1 year
Revenue, remaining performance obligation, amount	$ 1,800,000		$ 1,800,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year		1 year
Revenue, remaining performance obligation, amount	$ 200,000		$ 200,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year		1 year
Revenue, remaining performance obligation, amount	$ 7,500		$ 7,500
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year		1 year
Revenue, remaining performance obligation, amount	$ 7,500		$ 7,500
Data Analytics
Disaggregation of Revenue [Line Items]
Net revenues	3,475,000	3,597,000	6,033,000	6,365,000
Data Analytics | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net revenues	$ 1,200,000	$ 1,700,000	$ 1,800,000	$ 3,100,000