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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Millions	12 Months Ended
	Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($) reporting_unit	Mar. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Number of operating segments \| segment	1
Unbilled amounts included in accounts receivable	$ 16.7	$ 12.5
Capitalized contract cost amortization period		4 years
Recognition of capitalized contract cost	6.8	$ 8.0
Number of reporting units \| reporting_unit		3
Advertising expense	$ 12.9	$ 10.5	$ 7.0
Revenue Benchmark \| Customer Concentration Risk \| Ten Largest Customers
Property, Plant and Equipment [Line Items]
Concentration risk, percentage	29.00%
Revenue Benchmark \| Customer Concentration Risk \| Interpublic Group of Companies
Property, Plant and Equipment [Line Items]
Concentration risk, percentage	12.00%
Revenue Benchmark \| Product Concentration Risk \| Service
Property, Plant and Equipment [Line Items]
Concentration risk, percentage	5.00%
Minimum
Property, Plant and Equipment [Line Items]
Amortization period	2 years
Minimum \| Incentive Stock Option
Property, Plant and Equipment [Line Items]
Exercise price as a percentage of the per-share market value of the Company's shares at the date of grant	100.00%
Minimum \| Leasehold Improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Minimum \| Data Processing Equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Minimum \| Office Furniture and Other Equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Amortization period	6 years
Maximum \| Incentive Stock Option
Property, Plant and Equipment [Line Items]
Duration of stock options granted	10 years
Maximum \| Nonqualified Options
Property, Plant and Equipment [Line Items]
Exercise price as a percentage of the per-share market value of the Company's shares at the date of grant	100.00%
Duration of stock options granted	10 years
Maximum \| Leasehold Improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Maximum \| Data Processing Equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Maximum \| Office Furniture and Other Equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years