XML 64 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2018
Stock-Based Compensation Plans [Abstract]  
Restricted and Performance-Based Share Activity
Our restricted and performance-based share activity was as follows for the years ended December 31, 2018 and 2017:

  
Shares
  
Weighted Average
Grant Date Fair
Value per Share
 
Balance at December 31, 2016
  
822,848
   
30.46
 
Granted
  
207,975
   
42.79
 
Vested
  
(169,615
)
  
31.26
 
Forfeited
  
(7,250
)
  
37.24
 
Balance at December 31, 2017
  
853,958
  
$
33.25
 
Granted
  
198,004
   
39.36
 
Vested
  
(169,896
)
  
39.92
 
Forfeited
  
(12,025
)
  
42.40
 
Balance at December 31, 2018
  
870,041
  
$
34.59