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v3.19.2

Equity - Additional Information (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Payments of dividends | $ 30,407 | $ 26,265 |
Accumulated deficit | $ (1,904,242) |  | $ (1,680,432)

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