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v3.20.2

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Cumulative effect change in accounting principle | $ 939,889 | $ 1,052,230 | $ 698,725 | $ 866,204 | $ 917,597 | $ 1,018,413
Accumulated Deficit |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Cumulative effect change in accounting principle | $ (3,142,089) | (3,023,688) | (3,393,088) | $ (3,223,222) | (3,167,752) | (3,069,272)
Accumulated Deficit | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Cumulative effect change in accounting principle |  | $ 0 | $ (115) |  | $ 0 | $ (55,885)

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