LONG-TERM DEBT, NET - Components of Exchangeable Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jan. 01, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal	$ 3,892,499		$ 3,892,500
Less: Unamortized original issue discount	5,422		6,029
Total long-term debt, net	3,847,896	$ 3,840,930	3,840,930
2022 Exchangeable Notes | Senior Notes
Debt Instrument [Line Items]
Principal	517,499		517,500
Less: Unamortized original issue discount	3,754		6,511
Total long-term debt, net	513,745		510,989
2026 Exchangeable Notes | Senior Notes
Debt Instrument [Line Items]
Principal	575,000		575,000
Less: Unamortized original issue discount	7,522		8,700
Total long-term debt, net	567,478		566,300
2030 Exchangeable Notes | Senior Notes
Debt Instrument [Line Items]
Principal	575,000		575,000
Less: Unamortized original issue discount	8,883		9,627
Total long-term debt, net	$ 566,117		$ 565,373