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v3.20.1

Certain risks and concentration - Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries - Balance sheet (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Current assets: |  |  |
Cash and cash equivalents |  | $ 162,465 | $ 122,930
Short-term investments |  | 102,847 | 196,538
Accounts receivable, net |  | 27,533 | 19,391
Due from related parties |  | 1,658 | 1,137
Inventories |  | 5,537 | 12,667
Prepayments and other current assets |  | 16,543 | 10,236
Total current assets |  | 316,583 | 362,899
Non-current assets: |  |  |
Deferred tax assets |  | 1,118 | 5,690
Property and equipment, net |  | 38,770 | 21,903
Construction in progress |  | 18,461 | 6,775
Intangible assets, net |  | 9,426 | 9,991
Goodwill |  | 20,382 | 20,717
Other long-term prepayments |  | 313 | 593
Right-of-use assets |  | 8,747 | 11,819
Retricted cash |  | 2,983 |
Total assets |  | 424,687 | 455,431
Current liabilities: |  |  |
Accounts payable (note a) |  | 24,213 | 22,629
Due to related party |  | 5,002 | 5,234
Contract liabilities and deferred income, current portion |  | 31,988 | 30,295
Accrued liabilities and other payables (note b) |  | 42,840 | 44,065
Lease liabilities, current portion |  | 4,693 |
Total current liabilities |  | 111,286 | 108,035
Non-current liabilities: |  |  |
Contract liabilities and deferred income, non-current portion | [1] | 1,223 | 1,850
Deferred tax liabilities |  | 1,179 | 1,366
Lease liabilities, non-current portion |  | 4,132 |
Bank borrowings |  | 11,324 |
Total liabilities |  | 129,144 | 111,251
Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Current assets: |  |  |
Cash and cash equivalents |  | 34,847 | 47,695
Short-term investments |  | 292 | 10,272
Accounts receivable, net |  | 30,686 | 20,168
Due from related parties |  | 1,644 | 1,123
Inventories |  | 5,330 | 12,332
Prepayments and other current assets |  | 20,747 | 14,518
Total current assets |  | 93,546 | 106,108
Non-current assets: |  |  |
Equity method investments |  | 5,337 | 18,325
Deferred tax assets |  | 985 | 5,033
Property and equipment, net |  | 19,956 | 14,604
Construction in progress |  | 18,461 | 6,775
Intangible assets, net |  | 9,426 | 9,991
Goodwill |  | 20,382 | 20,717
Other long-term prepayments |  | 313 | 593
Right-of-use assets |  | 8,619 |
Retricted cash |  | 2,983 |
Total non-current assets |  | 86,462 | 76,038
Total assets |  | 180,008 | 182,146
Current liabilities: |  |  |
Accounts payable (note a) |  | 45,162 | 48,276
Due to related party |  | 2 | 298
Contract liabilities and deferred income, current portion |  | 31,988 | 29,794
Income tax payable |  | 2,436 | 2,437
Accrued liabilities and other payables (note b) |  | 191,406 | 158,288
Held-for-sale liabilities |  |  | 3,309
Lease liabilities, current portion |  | 4,621 |
Total current liabilities |  | 275,615 | 242,402
Non-current liabilities: |  |  |
Contract liabilities and deferred income, non-current portion |  | 1,223 | 1,850
Deferred tax liabilities |  | 1,179 | 1,366
Lease liabilities, non-current portion |  | 4,073 |
Bank borrowings |  | 11,324 |
Total non-current liabilities |  | 17,799 | 3,216
Total liabilities |  | $ 293,414 | $ 245,618
[1] | As of December 31, 2019, the non-current portion consists of membership subscription of USD 781,000 (2018: USD 517,000),and government grants of USD 442,000 (2018: USD 1,333,000).

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