Commitments and Contingencies - Additional Information (Detail) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 30, 2017
USD ($)
shares
| |
| Operating Leased Assets [Line Items] | |
| Litigation Settlement, Expense | $ 2.0 |
| Litigation Settlement, Amount Awarded to Other Party | $ 0.2 |
| Mustang Common Shares [Member] | |
| Operating Leased Assets [Line Items] | |
| Number of Shares To Be Issued Upon Legal Settlement | shares | 200,000 |
| X | ||||||||||
- Definition The number of shares which will be issued upon legal settlement. No definition available.
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- Definition Amount awarded to other party in judgment or settlement of litigation. No definition available.
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| X | ||||||||||
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Details
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