DEBT - Net Proceeds Amount (Details) - USD ($) $ in Thousands	1 Months Ended
Feb. 29, 2020	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Less: Capped Call Transactions		$ (33,308)	$ 0
Convertible Debt
Debt Instrument [Line Items]
Principal	$ 600,000	$ 600,000
Less: issuance costs	(14,527)
Less: Capped Call Transactions	(51,900)
Net proceeds	$ 533,573

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

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-Publisher FASB
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