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Convertible Preferred Shares - Share repurchases (Details) - Series A-1 convertible preferred shares - USD ($) $ / shares in Units, $ in Thousands | Nov. 01, 2019 | Nov. 11, 2016
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Convertible Preferred Shares |  |
Number of shares repurchased | 1,457,003 |
Number of shares issued during the period | 13,679,270 | 13,679,270
Weighted average price of shares repurchased during period | $ 2.5738 |
Proceeds from issuance of Class A ordinary shares upon the Dual Primary Listing, net of cost of issuance | $ 3,750 |
Original issuance price | $ 0.2193 | $ 0.2193

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- Definition Represents of new stock of temporary equity repurchased during the period. + References No definition available. + Details
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- Definition The cash outflow to reacquire preferred stock originally issued and identified as a security that can be exchanged for another type of financial security. This repurchased stock is held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481549/505-30-45-1 + Details
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