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UNAUDITED INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Current assets |  |
Accounts receivable, allowance for credit losses | $ 4,971 | $ 7,978
Loans receivable, allowance for credit losses | 58,832 | 20,872
Non-current assets |  |
Loans receivable, allowance for credit losses | 15,058 | 19,612
Current liabilities |  |
Accounts payable of the Consolidated VIEs without recourse to the primary beneficiaries | 179,551 | 121,637
Advances from customers of the Consolidated VIEs without recourse to the primary beneficiaries | 206,383 | 161,379
Amounts due to related parties of the Consolidated VIEs without recourse to the primary beneficiaries | 60,017 | 42,613
Operating lease liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 113,544 | 74,506
Deferred revenue of the Consolidated VIEs without recourse to the primary beneficiaries | 2,538,838 | 2,150,165
Income tax payable of the Consolidated VIEs without recourse to the primary beneficiaries | 114,448 | 52,306
Non-current liabilities |  |
Operating lease liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 299,476 | 177,870
Deferred revenue of the Consolidated VIEs without recourse to the primary beneficiaries | 396,138 | 343,297
Convertible notes of the Consolidated VIEs without recourse to the primary beneficiaries | 1,282,496 | 1,840,406
Deferred tax liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 1,272 | 1,526
Unrecognized tax benefits of the Consolidated VIEs without recourse to the primary beneficiaries | 107 | 107
VIEs [Member] |  |
Current liabilities |  |
Accounts payable of the Consolidated VIEs without recourse to the primary beneficiaries | 12,821 | 19,290
Accrued expenses and other payables of the Consolidated VIEs without recourse to the primary beneficiaries | 127,510 | 107,512
Advances from customers of the Consolidated VIEs without recourse to the primary beneficiaries | 16,652 | 11,014
Amounts due to related parties of the Consolidated VIEs without recourse to the primary beneficiaries | 3,805 | 2,347
Operating lease liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 6,543 | 10,122
Deferred revenue of the Consolidated VIEs without recourse to the primary beneficiaries | 204,926 | 212,377
Income tax payable of the Consolidated VIEs without recourse to the primary beneficiaries | 1,790 | 566
Non-current liabilities |  |
Accrued expenses and other payables of the Consolidated VIEs without recourse to the primary beneficiaries | 1,738 | 1,907
Operating lease liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 6,642 | 16,916
Deferred revenue of the Consolidated VIEs without recourse to the primary beneficiaries | 70,953 | 55,200
Convertible notes of the Consolidated VIEs without recourse to the primary beneficiaries | 0 | 0
Deferred tax liabilities of the Consolidated VIEs without recourse to the primary beneficiaries | 0 | 0
Unrecognized tax benefits of the Consolidated VIEs without recourse to the primary beneficiaries | $ 107 | $ 107
Class A Ordinary Shares [Member] |  |
Shareholders' equity |  |
Ordinary shares, par value (in dollars per share) | $ 0.0005 | $ 0.0005
Ordinary shares, authorized (in shares) | 14,800,000,000 | 14,800,000,000
Ordinary shares, Issued (in shares) | 382,489,822 | 359,755,767
Ordinary shares, Outstanding (in shares) | 382,489,822 | 359,755,767
Class B Ordinary Shares [Member] |  |
Shareholders' equity |  |
Ordinary shares, par value (in dollars per share) | $ 0.0005 | $ 0.0005
Ordinary shares, authorized (in shares) | 200,000,000 | 200,000,000
Ordinary shares, Issued (in shares) | 152,175,703 | 152,175,703
Ordinary shares, Outstanding (in shares) | 152,175,703 | 152,175,703

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