Redeemable Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2021

Temporary Equity Disclosure [Abstract]

Schedule of Movement in Carrying Value of Redeemable Noncontrolling Interests

The movement in the carrying value of the redeemable noncontrolling interests is as follows:

	2019		2020		2021		2021
	RMB		RMB		RMB		US$
Balance as of January 1		—		101,542		108,629		17,046
Issuance of subsidiary shares		100,000		—		268,420		42,121
Accretion of redeemable noncontrolling interests		1,542		7,087		20,336		3,191
Balance as of December 31		101,542		108,629		397,385		62,358