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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Mar. 18, 2019 | Oct. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |
Share Price |  | $ 102.38 | $ 84.27 |  |
Debt Instrument, Convertible, Conversion Price | $ 147.24 |  |  | $ 188.73 | $ 72.18
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | $ (13,894) | $ (56,656) | $ 116,401 |  |

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