DEBT - Summary of Convertible Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Convertible notes	$ 1,100,000
Convertible notes, net of unamortized discount and deferred offering costs	1,082,033	$ 1,079,077	[1]
Total convertible debt, net	1,082,033	1,079,077
Total fair value of fixed-rate convertible debt	$ 1,092,701	$ 1,146,204
1.25% Senior Subordinated Convertible Notes Due in May 2027
Debt Instrument [Line Items]
Convertible notes stated rate	1.25%	1.25%
Convertible notes	$ 600,000	$ 600,000
Unamortized discount net of deferred offering costs	(9,449)	(10,971)
Convertible notes, net of unamortized discount and deferred offering costs	590,551	589,029
Total fair value of fixed-rate convertible debt	$ 601,488	$ 625,122
0.599% Senior Subordinated Convertible Notes Due in August 2024
Debt Instrument [Line Items]
Convertible notes stated rate	0.599%	0.599%
Convertible notes	$ 495,000	$ 495,000
Unamortized discount net of deferred offering costs	(3,518)	(4,952)
Convertible notes, net of unamortized discount and deferred offering costs	491,482	490,048
Total fair value of fixed-rate convertible debt	$ 491,213	$ 521,082

[1] (1)Certain December 31, 2021 balances have been corrected for an immaterial error identified in the third quarter of 2022. See Note 1 to these Condensed Consolidated Financial Statements for details.