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Mezzanine Equity - Additional Information (Detail) | Dec. 31, 2019 $ / shares
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Series Angel Redeemable Convertible Preferred Shares [Member] |
Temporary Equity [Line Items] |
Convertible preferred shares, par value per share | $ 0.0001
Series Pre A Redeemable Convertible Preferred Shares [Member] |
Temporary Equity [Line Items] |
Convertible preferred shares, par value per share | $ 0.0001

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- Definition Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=122040564&loc=d3e177068-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (27) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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