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The Company and Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 31, 2022	Apr. 30, 2022
Cash and Cash Equivalents [Line Items]
Proceeds from bank loans		$ 53,078	$ 20,543	$ 10,401
Restricted cash		6,400
Bank Of Beijing
Cash and Cash Equivalents [Line Items]
Maximum borrowing capacity					$ 3,400
Secured debt | Bank Of Beijing
Cash and Cash Equivalents [Line Items]
Time deposit		$ 2,500			$ 1,000	$ 2,900
Proceeds from bank loans	$ 2,300

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Amount of time deposit liabilities, including certificates of deposit.

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