FINANCIAL INSTRUMENTS - Carrying Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	$ (100,500)	$ 0
Long-term debt, net	(3,829,421)	(3,840,930)
2022 Exchangeable Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt fair value	302,200	1,780,300
2022 Exchangeable Notes \| Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	(99,927)	0
Long-term debt, net	0	(510,989)
Aggregate principal amount	15,600
2026 Exchangeable Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt fair value	932,600	1,052,100
2026 Exchangeable Notes \| Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	0	0
Long-term debt, net	(567,870)	(566,300)
2030 Exchangeable Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt fair value	1,017,700	1,113,900
2030 Exchangeable Notes \| Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	0	0
Long-term debt, net	(566,362)	(565,373)
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	(84,333)	0
Long-term debt, net	(3,829,421)	(3,840,930)
Unamortized debt issuance costs, current	600	600
Unamortized original issue discount and debt issuance costs	45,600	51,600
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Current maturities of long-term debt, net	(254,472)	0
Long-term debt, net	$ (4,725,403)	$ (6,267,976)

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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