CONVERTIBLE SENIOR NOTES AND CAPPED CALLS - Carrying Amount of the Liability Component (Details) - Convertible Debt - Aggregate Notes - USD ($)	Dec. 31, 2021	Mar. 31, 2021	Dec. 01, 2019
Debt Instrument [Line Items]
Principal	$ 500,000,000	$ 362,500,000	$ 500,000,000
Unamortized debt discount	(54,818,000)	(53,323,000)
Unamortized issuance costs	(4,194,000)	(742,000)
Net carrying amount	$ 440,988,000	$ 308,435,000