DEBT - Convertible Senior Notes Narrative (Details)		3 Months Ended		12 Months Ended
	Jul. 24, 2020 USD ($) day $ / shares Rate shares	Mar. 31, 2024 USD ($) Rate	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 07, 2023 USD ($)	Mar. 08, 2023 USD ($)
Debt Instrument [Line Items]
Gain on extinguishment of debt		$ 0	$ 34,308,000
Write-off of previously-capitalized debt issuance costs		0	2,373,000
Amortization of debt issuance costs		$ 612,000	1,959,000
2025 Convertible Notes
Debt Instrument [Line Items]
Stated interest rate | Rate		0.50%
Initial conversion rate, shares per $1,000 principal amount of notes | shares	2.1683
Initial conversion price per share (in dollars per share) | $ / shares	$ 461.19
Debt repurchase amount					$ 100,200,000	$ 190,600,000
Fair value of debt repurchased					81,200,000	156,300,000
Debt repurchased amount, accrued interest					$ 200,000	$ 100,000
Gain on extinguishment of debt				$ 53,300,000
Write-off of previously-capitalized debt issuance costs				3,200,000
Debt prepayment costs				$ 1,600,000
Threshold trading days | day	20
Threshold consecutive trading days | day	30
Conversion rate, sales price of common stock as a percentage of the conversion price | Rate	130.00%
Interest expense		$ 800,000	1,400,000
Interest expense recognized associated with the coupon rate		400,000	700,000
Annual interest rate on convertible senior notes	0.50%
Amortization of debt issuance costs		$ 400,000	$ 700,000
2025 Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Aggregate principal amount	$ 575,000,000
Stated interest rate	0.50%	0.50%
Fair value		$ 265,000,000