Background and Basis of Presentation - Additional Information (Detail) |
Mar. 31, 2017 |
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| Merger Agreement | |
| Business Description And Basis Of Presentation [Line Items] | |
| Exchange of shares, conversion ratio | 1.3 |
| X | ||||||||||
- Definition Business combination, exchange of shares, conversion ratio No definition available.
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| X | ||||||||||
- Definition Business Description And Basis Of Presentation [Line Items] No definition available.
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| X | ||||||||||
- Details
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