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Share-Based Compensation And Other Related Information (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Disclosure of number and weighted average exercise prices of share options
The following table summarizes changes in stock options for the years ended December 31:
 Stock Options
 
 
 
Shares
Weighted
Average Exercise
Price CAD$
As at December 31, 2018698,387 $15.00 
Granted22,788 $26.54 
Granted pursuant to the Tahoe Acquisition (Note 8)835,874 $48.47 
Exercised(244,299)$15.10 
Expired(141,604)$58.45 
Forfeited(27,798)$34.00 
As at December 31, 20191,143,348 $33.84 
Granted7,605 39.48 
Exercised(329,711)$19.23 
Expired(482,438)53.41 
Forfeited(21,387)$43.08 
As at December 31, 2020317,417 $18.78 
Disclosure of range of exercise prices of outstanding share options
The following table summarizes information about the Company's stock options outstanding at December 31, 2020:
 Options OutstandingOptions Exercisable
Range of Exercise
Prices
CAD$
Number Outstanding as at December 31, 2020Weighted Average
Remaining
Contractual Life
(months)
Weighted
Average
Exercise Price
CAD$
Number Outstanding as at December 31, 2020Weighted
Average
Exercise
Price CAD$
$9.76 - $23.61
269,727 41.49 $15.75 269,727 $15.75 
$23.62 - $35.21
22,788 71.16 $26.54 11,396 $26.54 
$35.22 - $46.53
22,019 37.60 $41.68 14,414 $42.85 
$46.54 - $65.71
2,883 10.09 $65.71 2,883 $65.71 
 317,417 43.07 $18.78 298,420 $17.95 
Disclosure of assumptions used in determining fair value of options granted
The following assumptions were used in the Black-Scholes option pricing model in determining the fair value of options granted during the years ended December 31:
20202019
Expected life4.0 4.0 
Expected volatility37.9 %37.1 %
Expected dividend yield1.1 %1.0 %
Risk-free interest rate0.8 %2.0 %
Weighted average exercise price (CAD$)$39.45 $26.54 
Weighted average fair value (CAD$)$15.80 $8.34 
Disclosure of dividends
The Company declared the following dividends for the years ended December 31, 2020 and 2019:
Declaration DateRecord dateDividend per common share
February 17, 2021 (1)
March 1, 2021$0.0700 
November 4, 2020November 16, 2020$0.0700 
August 5, 2020August 17, 2020$0.0500 
May 6, 2020May 19, 2020$0.0500 
February 19, 2020March 2, 2020$0.0500 
November 6, 2019November 18, 2019$0.0350 
August 7, 2019August 19, 2019$0.0350 
May 8, 2019May 21, 2019$0.0350 
February 20, 2019March 4, 2019$0.0350 
(1)These dividends were declared subsequent to the year end and have not been recognized as distributions to owners during the period presented.
Performance Share Units [member]  
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Disclosure of number and aggregate fair value of other equity instruments
At December 31, 2020, the following PSUs were outstanding:  
PSUNumber OutstandingFair Value
As at December 31, 2018210,409 $3,091 
Granted75,311 1,784 
Paid out(38,119)(903)
Change in value— 1,924 
As at December 31, 2019247,601 $5,896 
Granted62,920 1,942 
Paid out(54,962)(2,626)
Forfeited— — 
Change in value— 3,658 
As at December 31, 2020255,559 $8,870 
Restricted Share Units [member]  
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Disclosure of number and aggregate fair value of other equity instruments
At December 31, 2020, the following RSUs were outstanding:
RSUNumber OutstandingFair Value
As at December 31, 2018328,823 $3,624 
Granted146,594 3,891 
Paid out(157,584)(3,140)
Forfeited(18,617)(441)
Change in value— 3,173 
As at December 31, 2019299,216 $7,107 
Granted261,224 6,302 
Paid out(148,049)(4,762)
Forfeited(15,819)(545)
Change in value— 5,628 
As at December 31, 2020396,572 $13,730