CONVERTIBLE NOTES - Issuances and Settlements (Details) - USD ($) shares in Millions	1 Months Ended				12 Months Ended
	Feb. 29, 2020	Mar. 31, 2019	Jun. 30, 2018	Jan. 31, 2018	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Net proceeds from issuance					$ 0	$ 0	$ 1,125,547,000
Loss on extinguishment of debt	$ 50,800,000				$ 0	$ 0	50,819,000
2025 Convertible notes
Debt Instrument [Line Items]
Stock issued in conversion of convertible notes (in shares)		2.2
Value of stock after conversion of convertible notes		$ 182,400,000
Repayments of convertible debt in cash and by issuance of shares		676,500,000
Repayments of debt		493,400,000
Accrued interest on notes		700,000
Loss on extinguishment of debt		187,700,000
2025 Convertible notes
Debt Instrument [Line Items]
Face amount			$ 218,500,000	$ 690,000,000
Interest rate (as a percent)			1.00%		1.00%	1.00%
Net proceeds from issuance			$ 225,300,000	$ 671,100,000
Repayments of convertible debt	150,100,000
Accrued interest on notes	100,000
Loss on extinguishment of debt							$ 42,800,000
Amount settled	100,000,000
2027 Convertible notes
Debt Instrument [Line Items]
Face amount		$ 747,500,000
Interest rate (as a percent)		0.375%			0.375%	0.375%
Net proceeds from issuance		$ 729,500,000
2027 Convertible notes | 2025 Convertible notes
Debt Instrument [Line Items]
Repayments of convertible debt		$ 494,100,000
2028 Convertible notes
Debt Instrument [Line Items]
Face amount	$ 1,150,000,000
Interest rate (as a percent)	0.375%				0.375%	0.375%
Net proceeds from issuance	$ 1,130,000,000