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CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
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Class A Common Stock |  |  |
Common stock, par value (USD per share) | $ 0.001 | $ 0.001 | $ 0.001
Class B Common Stock |  |  |
Common stock, par value (USD per share) | 0.001 | 0.001 | 0.001
Class C Common Stock |  |  |
Common stock, par value (USD per share) | $ 0.001 | $ 0.001 | $ 0.001

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- Definition Face amount or stated value per share of common stock. + 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 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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