XML 86 R75.htm IDEA: XBRL DOCUMENT v3.10.0.1
Schedule of Changes in Restricted Stock - Market Based Awards (Details) - Restricted Stock - Market Based Awards - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award    
Forfeited (4,128)  
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award The fair value of the market-based PSUs is amortized ratably over the requisite service period, primarily three years. The market-based shares vest if the participant is continuously employed throughout the performance period and the market-based performance measure is achieved, with a maximum vesting period of three years. All compensation cost related to the market-based awards will be recognized if the requisite service period is fulfilled, even if the market condition is not achieved.  
Time based shares granted to executives 90,778  
Number of Shares    
Outstanding beginning of year, January 1, 52,349  
Granted 90,778  
Outstanding at period end, 138,999  
Weighted-Average Grant-Date Fair Value    
Outstanding at beginning of year, January 1, $ 84.06  
Granted 69.98 $ 94.02
Outstanding at period end, $ 74.57  
Total intrinsic value of market-based awards non-vested $ 8,402 $ 3,297
Market price per common share as of period end, $ 60.45 $ 43.11
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 7,000  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 2 years 3 months 20 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value $ 94.02