Revenue - Deferred revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue
Balance, beginning of the period	$ 68,436	$ 23,058	$ 29,251
Deferral of revenue	146,674	66,349	17,862
Recognition of deferred revenue	(60,333)	(20,971)	(24,055)
Balance, end of the period	$ 154,777	$ 68,436	$ 23,058