DEBT AND FINANCING ARRANGEMENTS - Net Carrying Amount of Liability Component (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Net carrying amount of the liability component	$ 213,237	$ 257,504
2024 Convertible Senior Notes, net
Debt Instrument [Line Items]
Principal	172,500
Unamortized issuance costs	(5,052)
Net carrying amount of the liability component	167,448
2020 Convertible Senior Notes, net
Debt Instrument [Line Items]
Principal	46,070	230,000
Unamortized issuance costs	(281)	(2,496)
Net carrying amount of the liability component	$ 45,789	$ 227,504