Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The customer advances and deferred revenue balances as of December 31, 2021 and 2022 were comprised of the following:

	As of December 31,
	2021		2022		2022
	RMB		RMB		US$
	(in thousands)
Customer advances and prepaid cards		96,785		103,680		15,032
Deferred revenue related to loyalty points		2,852		685		99
Deferred membership service revenue		143,843		148,645		21,552
Total		243,480		253,010		36,683