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Share based compensation (Tables)

12 Months Ended

Dec. 31, 2016

Share-based compensation [Line Items]

Summary of the restricted shares activity

					Weighted
		Number of			average
		restricted			grant-date
		shares			fair value (US$)
Outstanding, December 31, 2013			4,673,725			0.6144
Forfeited			(159,410)			0.9362
Vested			(4,514,315)			0.6030
Outstanding, December 31, 2014, 2015 and 2016			-			-

Summary of the restricted share units activity

					Weighted
		Number of			average
		restricted			grant-date
		shares			fair value (US$)
Outstanding, December 31, 2013			44,302,600			0.9639
Granted			9,912,595			3.5805
Forfeited			(3,125,430)			1.1859
Vested			(12,283,670)			1.0144
Outstanding, December 31, 2014			38,806,095			1.5984
Granted			16,012,644			3.3358
Forfeited			(7,312,548)			1.8920
Vested			(11,222,589)			1.4374
Outstanding, December 31, 2015			36,283,602			2.3535
Granted			1,530,008			1.8618
Forfeited			(4,628,202)			2.7386
Vested			(12,229,688)			2.0151
Outstanding, December 31, 2016			20,955,720			2.4320
Expected to vest at December 31, 2016			20,568,083			2.4312

Pre-2009 Scheme Options [Member]

Share-based compensation [Line Items]

Summary of the activities of the Pre-2009 Scheme Options for employees and non-employee

								Weighted
					Weighted			average			Aggregate
					average			remaining			intrinsic
		Number of			exercise			contractual life			value
		options			price (US$)			(years)			(US$)
Outstanding, vested and exercisable, December 31, 2013			13,222,005			0.0059			4.40			33,162
Exercised			(5,841,660)			0.0057			3.24
Outstanding, vested and exercisable, December 31, 2014			7,380,345			0.0061			3.52			22,959
Exercised			(6,611,970)			0.0061			2.46
Outstanding, vested and exercisable, December 31, 2015			768,375			0.0067			2.99			2,395
Exercised			(234,720)			0.0067			2.00
Outstanding, vested and exercisable, December 31, 2016			533,655			0.0067			1.98			1,048

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

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+ References

No definition available.

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