Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and contingencies [Abstract]

Schedule of future minimum payments under non-cancellable operating leases

As of December 31, 2017, future minimum payments under non-cancellable operating leases consist of the following:

	Office rental
	RMB
2018		34,002
2019		10,030
2020		7,344
2021 and after		404
		51,780