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DEBT - Convertible Senior Notes Narrative (Details) |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 01, 2020 | Feb. 24, 2020 USD ($) | Mar. 31, 2020 tradingDays $ / shares | Feb. 29, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |
Redemption percentage | 100.00% |  |  |
On or after March 1, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption percentage |  |  | 100.00% |
Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Face amount | $ |  |  |  | $ 600,000,000
Interest rate |  | 0.75% |  |
Initial conversion rate |  |  | 7.4045 |
Initial conversion amount | $ |  | $ 1,000 |  |
Initial conversion price (in dollars per share) | $ / shares |  |  | $ 135.05 |
Convertible Debt | After the calendar quarter ending on June 30, 2020 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold percentage of stock price trigger |  |  | 130.00% |
Threshold trading days |  |  | 20 |
Threshold consecutive trading days |  |  | 30 |
Convertible Debt | Measurement Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold percentage of stock price trigger |  |  | 98.00% |
Threshold consecutive trading days |  |  | 5 |
Threshold consecutive business days |  |  | 5 |
Convertible Debt | On or after March 1, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold percentage of stock price trigger |  |  | 130.00% |
Threshold trading days |  |  | 20 |
Threshold consecutive trading days |  |  | 30 |
Convertible Debt | Additional Exercised |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Face amount | $ |  |  |  | $ 75,000,000

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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 + Details
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- Definition The rate of interest that was being paid on the original debt issue that is being converted in the noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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