XML 80 R38.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-Based Compensation (Details 2) (Long-Term Incentive Plan, Restricted stock units, USD $)
9 Months Ended
Sep. 30, 2014
Long-Term Incentive Plan | Restricted stock units
 
Non-vested shares activity  
Non-vested at the beginning of the period (in shares) 359,552
Granted (in shares) 0
Vested (in shares) (40,926)
Forfeited (in shares) (23,822)
Non-vested at the end of the period (in shares) 294,804
Weighted-Average Grant-Date Fair Value  
Non-vested at the beginning of the period (in dollars per share) $ 28.09
Granted (in dollars per share) $ 0.00
Vested (in dollars per share) $ 20.75
Forfeited (in dollars per share) $ 37.28
Non-vested at the end of the period (in dollars per share) $ 28.37