Certain risks and concentration (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of consolidated financial information of the Group's VIEs and VIE's subsidiaries excluding the inter company items with the Group's subsidiaries included in the accompanying consolidated financial statements

	December 31,
	2017		2018
	RMB		RMB
Assets
Current assets
Cash and cash equivalents		1,343,731		4,665,938
Short-term deposits		3,400,000		2,100,000
Restricted short-term deposits		1,000,000		-
Short-term investments		124,550		979,052
Accounts receivable, net		149,958		192,932
Inventory		315		-
Amounts due from related parties		9,309		172,258
Financing receivables, net		-		725,336
Prepayments and other current assets		190,456		663,437
Total current assets		6,218,319		9,498,953

Non-current assets
Long-term deposits		-		1,000,000
Deferred tax assets		113,017		70,834
Investments		582,775		862,272
Property and equipment, net		359,912		655,402
Intangible assets, net		15,504		57,050
Land use rights, net		1,832,739		1,784,639
Amounts due from related parties		20,000		-
Other non-current assets		133,812		143,240
Total non-current assets		3,057,759		4,573,437

Total assets		9,276,078		14,072,390

Liabilities
Current liabilities
Accounts payable		67,817		112,167
Deferred revenue		757,244		950,816
Advances from customers		80,406		101,690
Income taxes payable		142,204		162,118
Accrued liabilities and other current liabilities		1,404,877		2,207,138
Amounts due to related parties		30,502		28,336
Total current liabilities		2,483,050		3,562,265

Non-current liabilities
Deferred revenue		52,185		86,977
Deferred tax liabilities		8,404		-
Total non-current liabilities		60,589		86,977

Total liabilities		2,543,639		3,649,242

	For the year ended December 31,
	2016		2017		2018
	RMB		RMB		RMB

Net revenues		8,164,100		11,577,104		15,740,097
Net income		1,874,435		2,766,279		3,475,109

	For the year ended December 31,
	2016			2017			2018
	RMB			RMB			RMB

Net cash provided by operating activities		2,538,836			3,974,085			4,672,879
Net cash used in investing activities		(1,313,002	)		(3,571,668	)		(1,212,622	)
Net cash provided by financing activities		8,508			66,875			-
		1,234,342			469,292			3,460,257

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

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