v3.26.1
SHARE-BASED PAYMENTS (Tables)
 12 Months Ended
Mar. 31, 2026
Share-based Payment Arrangements [Abstract]  
Disclosure of effect of share-based payments on entity's profit or loss
Share-based payments expense are as follows:
 20262025
Equity-settled plans
Stock option plan$6.2 $5.9 
RSU plan12.0 6.6 
PSU plan18.7 12.7 
Cash-settled plans
Stock purchase plan17.6 16.2 
DSU plans8.9 14.9 
RSU plan0.1 1.9 
PSU plan0.4 3.3 
Total share-based payments expense$63.9 $61.5 
Impact of equity swap agreements (Note 31)
(3.1)(14.6)
Amount capitalized(0.8)(1.0)
Share-based payments expense, net of equity swap (Note 26)
$60.0 $45.9 

Carrying amount of share-based payments liabilities are as follows:

 20262025
Cash-settled plans
DSU plans$33.3 $48.7 
RSU plan— 6.5 
PSU plan— 10.4 
Total carrying amount of share-based payments liabilities$33.3 $65.6 
Current portion 11.3 25.3 
Non-current portion (Note 22)
$22.0 $40.3 
Disclosure of number and weighted average exercise prices of share options
Changes in outstanding stock options are as follows:
  2026   2025
  Weighted  Weighted
 Number ofaverage exerciseNumber ofaverage exercise
stock optionspricestock optionsprice
Stock options outstanding, beginning of year3,984,148 $28.52  6,459,922 $27.19 
Granted625,105 35.33  779,288 25.45 
Exercised(1,657,429)27.94  (2,763,675)24.29 
Forfeited(99,261)29.93  (491,387)29.96 
Expired(3,650)27.14  — — 
Stock options outstanding, end of year2,848,913 $30.31  3,984,148 $28.52 
Stock options exercisable, end of year1,406,633 $29.83  2,525,692 $28.44 
Disclosure of range of exercise prices of outstanding share options
As at March 31, 2026, summarized information about the stock options issued and outstanding is as follows:
 Options OutstandingOptions Exercisable
Weighted 
Number ofaverage remainingWeighted Number ofWeighted
Range ofstock optionscontractual lifeaverage exercisestock optionsaverage exercise
exercise pricesoutstanding (years)price  exercisableprice
$20.57 to $26.78
937,639 3.68$23.61 470,985 $21.81 
$26.83 to $30.13
453,948 4.2028.66 191,103 28.65 
$33.47 to $38.01
1,457,326 3.8335.13 744,545 35.20 
Total2,848,913 3.84$30.31 1,406,633 $29.83 
Disclosure of indirect measurement of fair value of goods or services received, other equity instruments granted during period
The assumptions used in the calculation of the fair value of the stock options on the grant date using the Black-Scholes option pricing model are as follows:
 2026 2025 
Common share price
$35.33 $25.45 
Exercise price
$35.33 $25.45 
Dividend yield
— %0.58 %
Expected volatility
39.27 %39.32 %
Risk-free interest rate
2.94 %3.53 %
Expected stock option life
5 years5 years
Disclosure of number and weighted average exercise prices of other equity instruments
Changes in outstanding equity-settled RSUs are as follows:
20262025
Equity-settled RSUs outstanding, beginning of year574,726 292,634 
Granted599,684 393,805 
Cancelled(46,991)(94,872)
Settled in shares(1,702)(15,370)
Settled in cash(5,856)(1,471)
Equity-settled RSUs outstanding, end of year1,119,861 574,726 
Equity-settled RSUs vested, end of year760,647 404,144 
Changes in outstanding equity-settled PSUs are as follows:
20262025
Equity-settled PSUs outstanding, beginning of year1,409,472 780,786 
Granted1,021,502 903,341 
Cancelled(110,706)(242,151)
Settled in shares(1,248)(30,060)
Settled in cash(3,434)(2,444)
Equity-settled PSUs outstanding, end of year2,315,586 1,409,472 
Equity-settled PSUs vested, end of year1,600,821 1,037,878 
Changes in outstanding DSUs are as follows:
20262025
DSUs outstanding, beginning of year1,377,311 1,487,414 
Granted143,539 139,677 
Redeemed(599,613)(249,780)
DSUs vested and outstanding, end of year921,237 1,377,311 
Changes in outstanding cash-settled RSUs are as follows:
20262025
Cash-settled RSUs outstanding, beginning of year193,139 404,037 
Cancelled(5,320)(43,833)
Redeemed(187,819)(167,065)
Cash-settled RSUs outstanding, end of year— 193,139 
Cash-settled RSUs vested, end of year— 184,725 
Changes in outstanding cash-settled PSUs are as follows:
20262025
Cash-settled PSUs outstanding, beginning of year491,896 912,281 
Cancelled(184,028)(283,840)
Redeemed(307,868)(136,545)
Cash-settled PSUs outstanding, end of year— 491,896 
Cash-settled PSUs vested, end of year— 467,991