XML 57 R41.htm IDEA: XBRL DOCUMENT v3.6.0.2
Equity-Based Compensation - Summary of Restricted Stock Activity, Including Converted Founder Stock (Detail)
12 Months Ended
Dec. 31, 2016
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Number of Shares, Unvested, Beginning balance | shares 2,227,276
Number of Shares, Vested | shares (864,230)
Number of Shares, Forfeited | shares (1,191)
Number of Shares, Unvested, Ending balance | shares 1,361,855
Weighted Average Grant Date Fair Value per Share, Unvested, Beginning balance | $ / shares $ 0.81
Weighted Average Grant Date Fair Value per Share, Vested | $ / shares 0.81
Weighted Average Grant Date Fair Value per Share, Forfeited | $ / shares 1.34
Weighted Average Grant Date Fair Value per Share, Unvested, Ending balance | $ / shares $ 0.81