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Cost of revenues (Details) - Cost of revenues [Member] - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue sharing fees and content costs	¥ 3,790,624	¥ 2,343,224	¥ 1,133,984
Bandwidth costs	651,652	570,169	345,913
Salary and welfare	232,497	198,153	131,773
Depreciation and amortization	173,048	145,135	59,817
Payment handling costs	67,474	104,849	55,101
Business tax and surcharges	44,659	27,794	49,233
Share based compensation	15,894	23,963	18,037
Other costs	127,582	166,457	55,291
Total	¥ 5,103,430	¥ 3,579,744	¥ 1,849,149

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Total costs related to services rendered by an entity during the reporting period.

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Depreciation of property, plant and equipment directly related to services rendered by an entity during the reporting period.

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Bandwidth costs incurred and directly related to services rendered by an entity during the reporting period.

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