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Capitalization - Schedule of Temporary Equity (Detail)	12 Months Ended
	Dec. 31, 2020 $ / shares
Series A Preferred Stock [Member]
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	$ 0.01
Issue Price	0.09
Series B Preferred Stock [Member]
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	0.01
Issue Price	0.20
Series C Preferred Stock [Member]
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	0.02
Issue Price	0.37
Series D Preferred Stock [Member]
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	0.19
Issue Price	3.15
Series E preferred stock
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	0.21
Issue Price	3.48
Series E-1 Preferred Stock
Schedule Of Capitalization Equity [Line Items]
Dividend Rate	0.21
Issue Price	$ 3.48

X

- Definition

The amount per share used to calculated dividend payments on preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

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X

- Definition

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+ References

No definition available.

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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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