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Other Balance Sheets Components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Prepaid expenses and other current assets:
Rental and other deposits	$ 1,544	$ 1,604
Deductible value-added taxes	5,307	8,575
Investment prepayment	0	37,269
Advertising prepayment	3,011	5,266
Prepayment to outsourced service providers	3,438	3,294
Amounts deposited by users	52,139	49,459
Content fees	16,663	18,070
Others	9,046	8,754
Prepaid expenses and other current assets	330,356	348,774
Related Parties [Member] | Other related parties
Prepaid expenses and other current assets:
Loans to and interest receivable	105,658	88,500
Other related parties
Prepaid expenses and other current assets:
Loans to and interest receivable	105,658	88,500
Third parties
Prepaid expenses and other current assets:
Loans to and interest receivable	$ 133,550	$ 127,983

X

- Definition

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
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-Section S99
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X

- Definition

Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

+ References

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- Definition

Amount of consideration paid in advance for advertising that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 340
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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Carrying value of cash deposited by users, escrowed on a third-party online payment platform, that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

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- Definition

Amount of consideration paid in advance for content fee.

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- Definition

Amount of prepaid expense and other assets, expected to be realized or consumed within one year or the normal operating cycle, if longer.

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Amount of consideration paid in advance for outsourced service provider.

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- Definition

Carrying value of current prepayments for investments.

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