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BUSINESS ACQUISITION - Dada, allocation (Details) - USD ($) $ in Thousands | Apr. 30, 2020 | Feb. 28, 2021
--- | --- | ---
Business Acquisition [Line Items] |  |
Goodwill. |  | $ 454,413
Dada |  |
Business Acquisition [Line Items] |  |
Cash and cash equivalents | $ 1,269 |
Net assets acquired, excluding cash and cash equivalents, intangible assets and the related deferred tax liabilities | (172,118) |
Goodwill. | 168,233 |
Deferred tax liabilities | (6,018) |
Noncontrolling interests | (1,146) |
Total | 14,292 |
Dada | User base and customer relationships |  |
Business Acquisition [Line Items] |  |
Intangible assets, net | $ 7,576 |
Amortization period |  |
Amortization period (in years) | 2 years |
Dada | Trade name and domain names |  |
Business Acquisition [Line Items] |  |
Intangible assets, net | $ 13,452 |
Amortization period |  |
Amortization period (in years) | 5 years |
Dada | Others |  |
Business Acquisition [Line Items] |  |
Intangible assets, net | $ 3,044 |
Amortization period |  |
Amortization period (in years) | 1 year |

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