Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Cash And Cash Equivalents [Line Items]
Cash	$ 858,089	$ 1,007,423
Cash equivalents	1,066	1,047
Cash and cash equivalents	859,155	1,008,470	$ 680,820
US$
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	832,974	957,824
RMB
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	21,968	45,486
Hong Kong dollar (“HK$”)
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	3,485	4,378
Australian dollar (“A$”)
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	578	598
Taiwan dollar (“TW$”)
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 150	$ 184