Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The price per share of the conversion feature embedded in the debt instrument.

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Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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DEBT - 2022 Convertible Notes (Details) - USD ($)	12 Months Ended
DEBT - 2022 Convertible Notes (Details) - USD ($)	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2017
Debt Instrument [Line Items]
Principal amount	$ 1,000,000,000
Common stock, shares issued (in shares)	75,519,049		75,279,061
Convertible debt, remaining discount amortization period	1 year
2022 Convertible Notes \| Convertible Notes
Debt Instrument [Line Items]
Principal amount				$ 230,000,000
Debt, stated interest rate				1.50%
Conversion price (in usd per share)	$ 146.45
Interest rate, effective percentage	4.73%
Redemption price	100.00%
2026 Convertible Notes
Debt Instrument [Line Items]
Interest rate, effective percentage	0.00%
Convertible debt, remaining discount amortization period	4 years
2026 Convertible Notes \| Convertible Notes
Debt Instrument [Line Items]
Principal amount		$ 575,000,000
Debt, stated interest rate		0.00%
Common stock, shares issued (in shares)	0.0058884
Conversion price (in usd per share)	$ 169.83