Quarterly report pursuant to Section 13 or 15(d)

Schedule of Changes in Common Stock Outstanding (Detail)

v3.10.0.1
Schedule of Changes in Common Stock Outstanding (Detail) - Common Stock
6 Months Ended
Jun. 30, 2018
shares
Class of Stock [Line Items]  
Beginning Balance 21,352,383
Shares issued for stock-based compensation 65,918
Ending Balance 22,418,301
RVL One Limited Liability Company  
Class of Stock [Line Items]  
Shares issued to RVL and affiliates 1,000,000