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Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 12, 2020 | Feb. 29, 2020 | Dec. 31, 2019
Subsequent Event [Line Items] |  |  |
Proceeds from exercise of common stock warrants |  |  | $ 11,457
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Number of warrants exercised |  | 1.0 |
Proceeds from exercise of common stock warrants |  | $ 2,200 |
Asset Purchase Agreement [Member] | Subsequent Event [Member] | Circle Media Labs Inc. [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Cash | $ 13,500 |  |

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- Definition Class of warrant or right number of securities exercised by warrants or rights. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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- Details
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- Details
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