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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Mar. 31, 2024 USD ($) segment reporting_unit	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items]
Number of operating segments \| segment		1
Asset impairment charges		$ 0	$ 4,000,000	$ 0
Unbilled amounts included in accounts receivable		$ 17,500,000	17,800,000
Capitalized contract cost amortization period		4 years
Recognition of capitalized contract cost		$ 11,100,000	6,800,000
Number of reporting units \| reporting_unit		3
Impairment of goodwill	$ 2,900,000	$ 2,875,000	0	0
Advertising expense		$ 11,500,000	$ 12,900,000	$ 10,500,000
Accounts Receivable \| Customer Concentration Risk \| One Customer
Property, Plant and Equipment [Line Items]
Concentration risk, percentage		10.00%
Revenue Benchmark \| Product Concentration Risk \| Service
Property, Plant and Equipment [Line Items]
Concentration risk, percentage		5.00%
Revenue Benchmark \| Customer Concentration Risk \| Ten Largest Customers
Property, Plant and Equipment [Line Items]
Concentration risk, percentage		27.00%
Minimum
Property, Plant and Equipment [Line Items]
Amortization period		1 year
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