Quarterly report pursuant to Section 13 or 15(d)

Summary of Restricted Stock Activity (Detail)

v2.4.0.8
Summary of Restricted Stock Activity (Detail) (Restricted Stock, USD $)
9 Months Ended
Sep. 30, 2014
Restricted Stock
 
Shares of Restricted Stock  
Shares of Restricted Stock, Beginning balance 1,260,913
Shares of Restricted Stock, Granted 268,257
Shares of Restricted Stock, Vested (619,307)
Shares of Restricted Stock, Forfeited (17,388)
Shares of Restricted Stock, Ending balance 892,475
Shares of Restricted Stock, Unvested restricted stock 892,475
Weighted Average Grant Date Fair Value  
Weighted Average Grant Date Fair Value Outstanding, Beginning $ 21.85
Weighted Average Grant Date Fair Value, Granted $ 28.90
Weighted Average Grant Date Fair Value, Vested $ 20.50
Weighted Average Grant Date Fair Value, Forfeited $ 21.42
Weighted Average Grant Date Fair Value Outstanding, Ending $ 24.91
Weighted Average Grant Date Fair Value, Unvested restricted stock $ 24.91