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Convertible Preferred Stock and Stockholders' Equity - Common Stock - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2019 Vote shares | Dec. 31, 2018 shares
Class Of Stock [Line Items] |  |
Common stock conversion feature | Each share of Class B common stock entitles the holder to ten votes for each share on all matters submitted to a vote of the Company’s stockholders at all meetings of stockholders and written actions in lieu of meetings. |
Class A Common Stock |  |
Class Of Stock [Line Items] |  |
Number of votes entitled to stockholders per share | Vote | 1 |
Conversion of stock | shares | 387,440 | 7,534,710
Class B Common Stock |  |
Class Of Stock [Line Items] |  |
Number of votes entitled to stockholders per share | Vote | 10 |
Class of share converted to another class | one share of Class A common stock |
Conversion of stock | shares | 1 |

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- Definition Description of common stock conversion feature. Includes, but is not limited to, conversion price; conversion right; timing of right; terms, event or change in circumstance causing contingency to be met or adjustment to conversion price or number of shares; manner of settlement upon conversion; and method of settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 + Details
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