XML 40 R63.htm IDEA: XBRL DOCUMENT v3.19.3
SHAREHOLDERS EQUITY - Stock based compensation - Stock Options Activity (Details) - Stock Options - $ / shares
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at beginning of year (in shares) 465,947  
Forfeited or expired (in shares) (42,750)  
Outstanding at end of period (in shares) 423,197  
Options fully vested / exercisable at end of period (in shares) 380,216 402,872
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning Balance $ 28.84  
Forfeited or expired (in dollars per share) 27.72  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance 28.95  
Options fully vested / exercisable at September 30, 2019 $ 29.34  
Weighted Average Remaining Contractual Term    
Outstanding at end of year 3 years 9 months 18 days  
Options fully vested / exercisable at September 30, 2019 3 years 6 months  
Aggregate Intrinsic Value    
Exercise price low range $ 20.00  
Exercise price high range $ 40.00  
Expiry period 10 years