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Commitments and Contingencies (Detail) |  |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 07, 2016 USD ($) | Mar. 04, 2016 petition | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jul. 27, 2018 USD ($)
Minerva |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Assessed damages |  |  |  |  | $ 4,800,000
Petitions filed | petition |  | 2 |  |  |
Cynosure |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Plaintiff statutory damages on individual basis | $ 25 |  |  |  |
Payment of settlement compensation |  |  | $ 8,500,000 |  |
Litigation settlement expense |  |  |  | $ 9,200,000 |

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