Cash and cash equivalents

12 Months Ended

Dec. 31, 2017

Cash and cash equivalents [Abstract]

Cash and cash equivalents

5. Cash and cash equivalents

Cash and cash equivalents represent cash on hand and demand deposits placed with banks or other financial institutions. Cash and cash equivalents balance as of December 31, 2016 and 2017 primarily consist of the following currencies:

	December 31, 2016				December 31, 2017
	Amount		RMB equivalent		Amount		RMB equivalent
RMB		1,536,947		1,536,947		1,627,044		1,627,044
US$		6,171		42,796		151,529		990,388
Total				1,579,743				2,617,432