BORROWINGS - Additional Information (Details) - Line of Credit $ in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Oct. 31, 2025 USD ($)	Sep. 30, 2026 AUD ($)
HarperCollins Warehouse Facility
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity	$ 120
Accrued interest rate	1.475%
Debt instrument term	7 years
Revolving Credit Facility | 2026 REA Credit Facility | REA Group
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity		$ 500
Debt instrument term		3 years
Unused capacity commitment fee percentage		40.00%
Revolving Credit Facility | 2026 REA Credit Facility | REA Group | Minimum
Debt Instrument [Line Items]
Accrued interest rate		1.05%
Revolving Credit Facility | 2026 REA Credit Facility | REA Group | Maximum
Debt Instrument [Line Items]
Accrued interest rate		1.95%