REVENUE FROM CONTRACTS WITH CUSTOMERS - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2025	Mar. 31, 2025	Sep. 30, 2025
Contract assets
Contract assets: Trade receivables	$ 58,650		$ 74,156
Contract assets: Unbilled revenue	11,011		10,463
Contract liabilities
Client deposits	17,288		33,152
Deferred revenue	19,740		$ 18,360
Unpaid advanced client billings excluded from client receivables	$ 12,944	$ 12,167
Percentage of revenue billed from unbilled revenue	61.00%
Percentage of contract liabilities recognized as revenue	52.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Contract liabilities
Deferred revenue to be recognized (percent)	77.00%
Deferred revenue recognition period	12 months

Contract With Customer Asset And The Contract With Customer Receivable, Current

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The percentage of contract liabilities recognized as revenue.

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The percentage of revenue billed from unbilled.

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current.

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Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

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Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

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