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CONVERTIBLE SENIOR NOTES - Notes Due 2024 (Detail) - USD ($)	1 Months Ended	9 Months Ended
	Sep. 30, 2024	Nov. 02, 2024	Nov. 01, 2025	Feb. 01, 2025	Sep. 30, 2019
Debt Instrument
Debt amount settled in cash		$ 41,904,000
Debt Instrument, Convertible, Settlement Method [Extensible Enumeration]		us-gaap:ShareSettlementMember
Common stock, par value			$ 0.0001	$ 0.0001
Additional paid-in capital			$ 399,809,000	$ 362,348,000
2024 Notes
Debt Instrument
Shares issued upon conversion		39,121
Common stock, par value		$ 0.0001
Additional paid-in capital		$ 0
2024 Notes \| Private Placement
Debt Instrument
Debt amount settled in cash	$ 42,000,000
Debt instrument, principal amount					$ 350,000,000
Debt instrument, interest rate					0.00%
Long term debt	$ 42,000,000			$ 0