Unaudited condensed consolidated statements of comprehensive loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (161,190)	$ (96,412)	$ (381,517)	$ (492,646)
Other comprehensive income (loss), net of tax of nil:
Foreign currency translation adjustments	35,062	1,741	63,194	(600)
Comprehensive loss	$ (126,128)	$ (94,671)	$ (318,323)	$ (493,246)