CONVERTIBLE SENIOR NOTES - Narrative (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Sep. 30, 2024	Jun. 30, 2023	Feb. 01, 2025	Feb. 03, 2024	Jan. 28, 2023	Sep. 30, 2019	Jun. 30, 2018
Debt Instrument
Debt amount settled in cash			$ 41,904,000	$ 1,696,000	$ 13,064,000
2023 Notes
Debt Instrument
Debt instrument, principal amount		$ 1,700,000			9,400,000
Debt amount settled in cash		$ 1,700,000			$ 9,400,000
Private Placement
Debt Instrument
Debt instrument, principal amount							$ 300,000,000
Long term debt			0
Private Placement | 2024 Notes
Debt Instrument
Debt instrument, principal amount				$ 350,000,000		$ 350,000,000
Debt instrument, interest rate				0.00%		0.00%
Long term debt			$ 0	$ 42,000,000
Debt amount settled in cash	$ 42,000,000
Private Placement | 2023 Notes
Debt Instrument
Debt instrument, principal amount							$ 335,000,000
Debt instrument, interest rate							0.00%
Over-Allotment Option | 2023 Notes
Debt Instrument
Long term debt							$ 35,000,000