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Other Balance Sheets Components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Prepaid expenses and other current assets: |  |
Rental and other deposits | $ 1,606 | $ 1,583
Deductible value-added taxes | 4,860 | 3,865
Investment prepayment | 29,055 | 30,938
Proceeds receivable from disposal of investments | 0 | 13,371
Advertising prepayment | 8,563 | 9,126
Prepayment to outsourced service providers | 3,380 | 3,479
Amounts deposited by users | 50,194 | 52,216
Content fees | 15,796 | 15,859
Others | 9,385 | 14,382
Prepaid expenses and other current assets | 359,881 | 391,502
Related Parties [Member] | Other related parties |  |
Prepaid expenses and other current assets: |  |
Loans to and interest receivable | 100,000 | 110,000
Other related parties |  |
Prepaid expenses and other current assets: |  |
Loans to and interest receivable | 100,000 | 110,000
Third parties |  |
Prepaid expenses and other current assets: |  |
Loans to and interest receivable | $ 137,042 | $ 136,683

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