Quarterly report pursuant to Section 13 or 15(d)

Summary of Restricted Stock Activity (Detail)

v3.19.3
Summary of Restricted Stock Activity (Detail) - Restricted Stock
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Shares of Restricted Stock  
Shares of Restricted Stock, Beginning balance | shares 704,353
Shares of Restricted Stock, Granted | shares 308,250
Shares of Restricted Stock, Vested | shares (198,711)
Shares of Restricted Stock, Forfeited | shares (19,351)
Shares of Restricted Stock, Ending balance | shares 794,541
Shares of Restricted Stock, Unvested restricted stock | shares 794,541
Weighted Average Grant Date Fair Value  
Weighted Average Grant Date Fair Value Outstanding, Beginning | $ / shares $ 38.68
Weighted Average Grant Date Fair Value, Granted | $ / shares 37.42
Weighted Average Grant Date Fair Value, Vested | $ / shares 41.38
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 37.41
Weighted Average Grant Date Fair Value Outstanding, Ending | $ / shares 37.55
Weighted Average Grant Date Fair Value, Unvested restricted stock | $ / shares $ 37.55