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REVENUES - Additional Information (Details)		3 Months Ended
REVENUES - Additional Information (Details)	Jan. 15, 2026 USD ($)	Sep. 30, 2026 USD ($) category revenue	Sep. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)
Disaggregation of Revenue [Line Items]
Number of revenue streams (in revenue streams) \| revenue		4
Number of product categories \| category		8
Contract assets reclassified to receivables		$ 29,500,000	$ 26,300,000
Asset impairment		0	0
Revenue recognized		621,100,000	650,100,000
Impairment loss		0	$ 0
Short-term deferred revenues		1,378,557,000		$ 1,483,234,000
eDOCS \| Secured debt \| Acquisition Term Loan \| Line of credit
Disaggregation of Revenue [Line Items]
Repayment of line of credit	$ 163,000,000.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation		$ 4,500,000,000
Revenue, remaining performance obligation (as a percent)		57.00%
Expected timing of satisfaction, period		9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		21.00%
Expected timing of satisfaction, period		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		12.00%
Expected timing of satisfaction, period		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		10.00%
Expected timing of satisfaction, period
Client Support \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation		$ 1,700,000,000
Revenue, remaining performance obligation (as a percent)		71.00%
Expected timing of satisfaction, period		9 months
Client Support \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		17.00%
Expected timing of satisfaction, period		1 year
Client Support \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		7.00%
Expected timing of satisfaction, period		1 year
Client Support \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-10-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation (as a percent)		5.00%
Expected timing of satisfaction, period