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CONVERTIBLE NOTES, 2023, 2024 and 2025 Convertible Notes (Details) - USD ($) $ / shares in Units, $ in Thousands | 2 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 07, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Convertible Notes With Cash Conversion Option [Abstract] |  |  |  |
Equity component |  |  | $ 284,727 |
Carrying Amount of the Liability Components [Abstract] |  |  |  |
Principal |  | $ 1,595,432 |  | $ 2,310,820
Less: unamortized issuance cost and debt discount |  | (312,936) |  | (470,414)
Net carrying amount |  | 1,282,496 |  | 1,840,406
Recognized total interest expense for coupon interest |  | 18,715 | 14,849 |
Amortization of debt discount |  | 42,311 | 40,805 |
Conversion of Convertible Notes [Abstract] |  |  |  |
Gain on debt extinguishment |  | $ 11,427 | $ (12,158) |
2023 Convertible Notes [Member] |  |  |  |
Issuance of Convertible Notes and Terms [Abstract] |  |  |  |
Issuance date |  | Jun. 18, 2018 |  |
Maturity date |  | Jul. 01, 2023 |  |
Principal amount |  | $ 575,000 |  |
Interest rate |  | 2.25% |  |
Initial conversion rate (ADSs per $1 principal amount) |  | 50.5165 |  |
Outstanding principal amount convert whole or partly in integral multiples |  | $ 1 |  |
Initial conversion rate per ADS (in dollars per share) |  | $ 19.80 |  |
Agreed conversion date |  | Jan. 01, 2023 |  |
Convertible Notes With Cash Conversion Option [Abstract] |  |  |  |
Liability component |  | $ 410,926 |  |
Effective interest rate |  | 9.38% |  |
Equity component |  | $ 152,714 |  |
Debt issuance cost, allocated in proportion to the allocation of proceeds |  | 11,360 |  |
Carrying Amount of the Liability Components [Abstract] |  |  |  |
Principal |  | 33,530 |  | 49,000
Less: unamortized issuance cost and debt discount |  | (4,340) |  | (7,737)
Net carrying amount |  | 29,190 |  | 41,263
Amount of if-converted convertible notes exceeding the principal |  | $ 431,592 |  | 443,710
2024 Convertible Notes [Member] |  |  |  |
Issuance of Convertible Notes and Terms [Abstract] |  |  |  |
Issuance date |  | Nov. 18, 2019 |  |
Maturity date |  | Dec. 01, 2024 |  |
Principal amount |  | $ 1,150,000 |  |
Interest rate |  | 1.00% |  |
Initial conversion rate (ADSs per $1 principal amount) |  | 19.9475 |  |
Outstanding principal amount convert whole or partly in integral multiples |  | $ 1 |  |
Initial conversion rate per ADS (in dollars per share) |  | $ 50.13 |  |
Agreed conversion date |  | Jun. 01, 2024 |  |
Convertible Notes With Cash Conversion Option [Abstract] |  |  |  |
Liability component |  | $ 897,918 |  |
Effective interest rate |  | 6.03% |  |
Equity component |  | $ 240,582 |  |
Debt issuance cost, allocated in proportion to the allocation of proceeds |  | 11,500 |  |
Carrying Amount of the Liability Components [Abstract] |  |  |  |
Principal |  | 412,402 |  | 1,112,320
Less: unamortized issuance cost and debt discount |  | (64,265) |  | (195,760)
Net carrying amount |  | 348,137 |  | 916,560
Amount of if-converted convertible notes exceeding the principal |  | $ 1,846,564 |  | 3,304,202
2024 Convertible Notes [Member] | Capped Call Transactions [Member] |  |  |  |
Capped Call Transactions [Abstract] |  |  |  |
Capped calls initial strike price (in dollars per shares) |  | $ 50.13 |  |
Capped calls initial cap price (in dollars per shares) |  | $ 70.36 |  |
2024 Convertible Notes [Member] | Capped Call Transactions [Member] | Class A Ordinary Shares [Member] |  |  |  |
Capped Call Transactions [Abstract] |  |  |  |
Capped call transaction price |  | $ 97,060 |  |
2025 Convertible Notes [Member] |  |  |  |
Issuance of Convertible Notes and Terms [Abstract] |  |  |  |
Issuance date |  | May 22, 2020 |  |
Maturity date |  | Dec. 01, 2025 |  |
Principal amount |  | $ 1,150,000 |  |
Interest rate |  | 2.375% |  |
Initial conversion rate (ADSs per $1 principal amount) |  | 11.0549 |  |
Outstanding principal amount convert whole or partly in integral multiples |  | $ 1 |  |
Initial conversion rate per ADS (in dollars per share) |  | $ 90.46 |  |
Agreed conversion date |  | Sep. 01, 2025 |  |
Convertible Notes With Cash Conversion Option [Abstract] |  |  |  |
Liability component |  | $ 856,635 |  |
Effective interest rate |  | 8.21% |  |
Equity component |  | $ 284,727 |  |
Debt issuance cost, allocated in proportion to the allocation of proceeds |  | 8,638 |  |
Carrying Amount of the Liability Components [Abstract] |  |  |  |
Principal |  | 1,149,500 |  | 1,149,500
Less: unamortized issuance cost and debt discount |  | (244,331) |  | (266,917)
Net carrying amount |  | 905,169 |  | 882,583
Amount of if-converted convertible notes exceeding the principal |  | $ 2,340,009 |  | $ 1,379,949
2025 Convertible Notes [Member] | Capped Call Transactions [Member] |  |  |  |
Capped Call Transactions [Abstract] |  |  |  |
Capped calls initial strike price (in dollars per shares) |  | $ 90.46 |  |
Capped calls initial cap price (in dollars per shares) |  | $ 136.54 |  |
2025 Convertible Notes [Member] | Capped Call Transactions [Member] | Class A Ordinary Shares [Member] |  |  |  |
Capped Call Transactions [Abstract] |  |  |  |
Capped call transaction price |  | $ 135,700 |  |
Convertible Notes [Member] |  |  |  |
Conversion of Convertible Notes [Abstract] |  |  |  |
Amount of outstanding principal converted |  | $ 715,388 |  |
Convertible Notes [Member] | Subsequent Event [Member] |  |  |  |
Conversion of Convertible Notes [Abstract] |  |  |  |
Amount of outstanding principal converted | $ 181,252 |  |  |

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