XML 107 R55.htm IDEA: XBRL DOCUMENT v3.8.0.1
Share-based compensation plans (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Abstract]  
Schedule of number of stock options and weighted avearge exercisable price
(Number of options)20172016
Beginning of year8,020,3118,503,238
Options granted1,373,0401,273,340
Options forfeited(564,423)(1,156,737)
Options expired(504,052)(599,530)
Options exercised [note 15](210)-
End of year8,324,6668,020,311
Exercisable5,809,0775,929,550

Weighted average exercise prices were as follows:
20172016
Beginning of year$23.61$26.04
Options granted14.7016.38
Options forfeited26.4925.70
Options expired19.5038.81
Options exercised 19.37-
End of year$22.19$23.61
Exercisable$24.95$25.46
Total options outstanding and exercisable
Total options outstanding and exercisable at December 31, 2017 were as follows:
Options outstandingOptions exercisable
Option price per shareNumberWeighted average remaining lifeWeighted average exercisable priceNumberWeighted average exercisable price
$14.70 - 20.223,527,3035.7$16.461,011,714$18.08
$20.23 - 39.534,797,3632.2$26.414,797,363$26.41
8,324,6665,809,077
The foregoing options have expiry dates ranging from February 28, 2018 to February 28, 2025.
Compensation expense under equity settled plans
20172016
Stock option plan$4,941$4,588
Performance share unit plan6,1865,572
Restricted share unit plan2,8333,941
Employee share ownership plan4,4735,204
End of year$18,433$19,305
Expenses (recoveries) cash-settled plans
20172016
Deferred share unit plan$(42)$(739)
Phantom stock option plan176(83)
$134$(822)
Equity-settled plan [Member]  
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Inputs measurement fair value of sharebased plans
Stock option planPSURSU
Number of options granted1,373,040470,120279,892
Average strike price$14.70-$14.71
Expected dividend$0.40--
Expected volatility34%36%-
Risk-free interest rate1.1%0.9%-
Expected life of option4.7 years3 years-
Expected forfeitures7%9%13%
Weighted average grant date fair values$3.34$14.72$14.71
Phantom Stock Option Plan [member]  
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Inputs measurement fair value of sharebased plans
Grant dateReporting date
March 1, 2017December 31, 2017
Number of units127,595391,714
Average strike price$14.70$22.13
Expected dividend$0.40$0.08
Expected volatility33%38%
Risk-free interest rate1.1%1.7%
Expected life of option4.5 years3.3 years
Expected forfeitures7%7%
Weighted average measurement date fair values$3.28$1.35