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Other Balance Sheets Components - Accrued and other liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Accrued and other liabilities:
Payroll and welfare	$ 174,618	$ 164,368
Marketing expenses	63,747	53,194
Sales rebates	222,209	256,220
Professional fees	6,574	5,149
VAT and other tax payable	56,719	62,104
Amounts due to users	52,139	49,459
Unpaid consideration for investment	400	898
Proceeds received in advance from disposal of investment	957	1,096
Interest payable for convertible senior notes, unsecured senior notes and long-term loans	13,495	14,123
Others	43,589	33,596
Total accrued and other liabilities	$ 634,447	$ 640,207

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable, and liabilities classified as other, due within one year or within the normal operating cycle if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales rebate. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle, if longer).

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Carrying value as of the balance sheet date of obligations due to third parties, employees, related parties and Weibo wallet users.

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Amount of liability as of the balance sheet date for consideration unpaid on investment.

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The amount of proceeds received in advance from disposal of investment classified as current.

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