Number of votes entitled per share.

No definition available.

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- Definition

Ratio applied to the conversion and redesignation of preferred shares into equity.

+ References

No definition available.

+ Details

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- Definition

Number of shares issued for each share of convertible preferred stock that is converted.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644

+ Details

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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REDEEMABLE CONVERTIBLE PREFERRED SHARES (Details)			1 Months Ended
REDEEMABLE CONVERTIBLE PREFERRED SHARES (Details)	Mar. 08, 2019 Vote	Sep. 22, 2016 Vote	Mar. 31, 2019 shares	Dec. 31, 2017 $ / shares	Dec. 31, 2016 $ / shares	Dec. 31, 2015 $ / shares	Dec. 31, 2014 $ / shares
Temporary Equity [Line Items]
Preferred shares, par value \| $ / shares				$ 0.00001	$ 0.00001	$ 0.00001	$ 0.00001
Preferred shares, conversion and redesignation, ratio			1
Number of votes per share		1
Class A ordinary shares
Temporary Equity [Line Items]
Number of votes per share	1
Shares issued for each shares converted \| shares			237,129,043
Class B ordinary shares
Temporary Equity [Line Items]
Number of votes per share	20
Shares issued for each shares converted \| shares			140,802,051