XML 68 R58.htm IDEA: XBRL DOCUMENT v3.5.0.2
Employee Benefits and Share-Based Compensation - Restricted Stock Activity (Details) - 2009 Plan - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Restricted Stock Units (RSUs)      
Number of Shares      
Outstanding at December 31, 2015 (in shares) 417    
Granted (in shares) 104    
Vested (in shares) (78)    
Forfeited (in shares) (17)    
Outstanding and unvested at June 30, 2016 (in shares) 426   417
Weighted-Average Grant Date Fair Value      
Outstanding and unvested (in dollars per share) $ 28.49    
Granted (in dollars per share) 28.09 $ 34.19  
Vested (in dollars per share) 25.57    
Forfeited (in dollars per share) 27.54    
Outstanding and unvested (in dollars per share) $ 28.97   $ 28.49
Weighted-average remaining years, outstanding and unvested (in years) 1 year 5 months 5 days   1 year 7 months
Aggregate Intrinsic Value      
Outstanding and unvested at June 30, 2016 $ 14,567    
Unrecognized compensation cost $ 9,900    
Weighted average period of compensation cost recognized 2 years 8 months 12 days    
Restricted Stock Awards      
Number of Shares      
Outstanding at December 31, 2015 (in shares) 31    
Granted (in shares) 35    
Vested (in shares) (31)    
Forfeited (in shares) 0    
Outstanding and unvested at June 30, 2016 (in shares) 35   31
Weighted-Average Grant Date Fair Value      
Outstanding and unvested (in dollars per share) $ 35.97    
Granted (in dollars per share) 31.59    
Vested (in dollars per share) 36.03    
Forfeited (in dollars per share) 0.00    
Outstanding and unvested (in dollars per share) $ 31.56   $ 35.97
Aggregate Intrinsic Value      
Unrecognized compensation cost $ 900    
Weighted average period of compensation cost recognized 10 months 28 days