Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) |
12 Months Ended |
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Dec. 31, 2017
Segment
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| Business Description And Basis Of Presentation [Line Items] | |
| Number of operating segments | 1 |
| Merger Agreement | |
| Business Description And Basis Of Presentation [Line Items] | |
| Exchange of shares, conversion ratio | 1.3 |
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- Definition Business combination, exchange of shares, conversion ratio No definition available.
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- Definition Business Description And Basis Of Presentation [Line Items] No definition available.
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
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- Details
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