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Earnings Per Share - Antidilutive Securities (Details) - $ / shares shares in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Oct. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Total anti-dilutive securities | 4,980 | 970 | 5,780 |
Convertible Debt | Convertible Notes, due 2024 |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Debt instrument, conversion price (usd per share) | $ 58.725 |  |  |
Convertible Debt | Convertible Notes, due 2024 | Maximum |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Debt instrument, conversion price (usd per share) | $ 71.775 |  |  | $ 71.775
Share-based awards |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Total anti-dilutive securities | 270 | 150 | 220 |
Convertible note hedge and capped call transactions |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Total anti-dilutive securities | 300 | 820 | 380 |
Warrants |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share |  |  |  |
Total anti-dilutive securities | 4,410 | 0 | 5,180 |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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