DEBT - Convertible Notes (Details) - Convertible Debt $ / shares in Units, $ in Millions	1 Months Ended
Mar. 31, 2021 USD ($) d $ / shares
2026 Notes
Debt Instrument [Line Items]
Debt instrument, face amount \| $	$ 575.0
Stated percentage (in percent)	0.00%
2028 Notes
Debt Instrument [Line Items]
Debt instrument, face amount \| $	$ 345.0
Stated percentage (in percent)	1.125%
The 2026 Notes and the 2028 Notes
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio	0.4394
Debt instrument, convertible, conversion price (in dollars per share) \| $ / shares	$ 2,275.83
Debt instrument, redemption price, percentage (in percent)	100.00%
Debt instrument, convertible, threshold percentage of stock price trigger (in percent)	130.00%
Debt instrument, convertible, threshold trading days \| d	20
Debt instrument, convertible, threshold consecutive trading days \| d	30
The 2026 Notes and the 2028 Notes \| Company Undergoes a Fundamental Change
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage (in percent)	100.00%

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