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Income Taxes - Components Of Income Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Components of loss before income taxes and income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss before income taxes | $ (71,861) | $ (26,772) | $ (37,432) | $ (18,036) | $ (17,822) | $ (17,338) | $ (30,547) | $ (64,204) | $ (47,885) | $ (136,065) | $ (65,707) | $ (627,000) | $ (83,743) | $ (94,903)
Income tax benefit | 6,644 | 17,371 |  |  |  |  |  | 17,371 |  | 24,015 |  | 30,845 |  | 9,295
Net loss attributable to the Company | $ (65,217) | $ (9,401) | $ (37,432) | $ (18,036) | $ (17,822) | $ (17,338) | $ (30,547) | $ (46,833) | $ (47,885) | $ (112,050) | $ (65,707) | (596,155) | (83,743) | (85,608)
Significant components of deferred income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  | (31,475) | (11,047) | (10,812)
Net operating loss carryforward generated |  |  |  |  |  |  |  |  |  |  |  | (52,287) | (5,369) | (10,986)
Valuation allowance increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | 52,917 | 16,416 | 12,503
U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Components of loss before income taxes and income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss before income taxes |  |  |  |  |  |  |  |  |  |  |  | (624,302) | (82,188) | (93,497)
Income tax benefit |  |  |  |  |  |  |  |  |  |  |  | 30,845 |  | 9,295
Net loss attributable to the Company |  |  |  |  |  |  |  |  |  |  |  | (593,457) | (82,188) | (84,201)
Significant components of deferred income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  | (31,408) | (10,621) | (11,745)
Net operating loss carryforward generated |  |  |  |  |  |  |  |  |  |  |  | (51,849) | (5,099) | (10,321)
Valuation allowance increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | 52,412 | 15,720 | 12,771
Foreign |  |  |  |  |  |  |  |  |  |  |  |  |  |
Components of loss before income taxes and income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss before income taxes |  |  |  |  |  |  |  |  |  |  |  | (2,698) | (1,555) | (1,407)
Net loss attributable to the Company |  |  |  |  |  |  |  |  |  |  |  | (2,698) | (1,555) | (1,407)
Significant components of deferred income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax (benefit) expense |  |  |  |  |  |  |  |  |  |  |  | (67) | (426) | 933
Net operating loss carryforward generated |  |  |  |  |  |  |  |  |  |  |  | (438) | (270) | (665)
Valuation allowance increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 505 | $ 696 | $ (268)

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