Deferred Costs (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Movement of Deferred Costs

The movements of deferred costs for the years ended December 31, 2017 and 2018 are as follows:

	As of December 31,
	2017			2018
	RMB			RMB
Beginning balances (current and non-current)		25,228			98,260
Additions		121,327			374,594
Amortizations		(48,213	)		(145,488	)
Impairments		(82	)		(99	)
Ending balances (current and non-current)		98,260			327,267
Deferred costs, current		55,073			180,657
Deferred costs, non-current		43,187			146,610