v3.24.3
Share-based compensation (Tables)
 9 Months Ended
Sep. 28, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity
New awards and movements in existing awards granted under this plan are summarized in the tables below.
Summary of movements in options outstanding
Nine months ended September 28, 2024
PlanNumber of
options		Weighted average exercise price
$
Outstanding at the beginning of the period:
—Tier I2014 Plan1,828,327 $6.98 
—Tier II2014 Plan1,996,017 $7.01 
—Tier IV2014 Plan1,986,416 $10.52 
—SARsBoth plans735,221 $10.47 
—Share options2018 Plan2,345,520 $14.90 
—Premium-priced options2018 Plan835,469 $18.88 
9,726,970 $10.90 
Granted during the period:
—SARs2018 Plan22,100 $14.87 
22,100 $14.87 
Forfeited during the period:
—SARs2018 Plan(3,535)$13.50 
(3,535)$13.50 
Expired during the period:
—SARsBoth Plans(266)$14.04 
—Share options2018 Plan(331,730)$17.27 
(331,996)$17.26 
Exercised during the period:
—Tier I2014 Plan(133,758)$6.81 
—Tier II2014 Plan(177,264)$6.87 
—Tier IV2014 Plan(195,676)$10.51 
—SARsBoth Plans(148,438)$9.68 
—Share options2018 Plan(408,422)$14.17 
(1,063,558)$10.73 
Outstanding at the end of the period:
—Tier I2014 Plan1,694,569 $6.99 
—Tier II2014 Plan1,818,753 $7.02 
—Tier IV2014 Plan1,790,740 $10.52 
—SARsBoth plans605,082 $10.81 
—Share options2018 Plan1,605,368 $14.60 
—Premium-priced options2018 Plan835,469 $18.88 
8,349,981 $10.68 
Exercisable at the end of the period8,269,839 $10.64 
Vested and expected to vest at the end of the period8,349,643 $10.68 
Schedule of RSU and PRSU Activity
Summary of movements in RSUs and PRSUs outstanding
Nine months ended September 28, 2024
Number of
awards		Weighted average
grant date fair value
$
Outstanding at the beginning of the period:
—RSUs3,032,230 $13.78 
—PRSUs917,661 $16.77 
3,949,891 $14.47 
Granted during the period:
—RSUs1,222,752 $14.91 
—PRSUs426,607 $16.37 
1,649,359 $15.28 
Forfeited during the period:
—RSUs(276,392)$13.69 
—PRSUs(154,837)$15.77 
(431,229)$14.44 
Vested during the period:
—RSUs(1,357,673)$13.80 
—PRSUs(154,274)15.00 
(1,511,947)$13.92 
Outstanding at the end of the period:
—RSUs2,620,917 $14.30 
—PRSUs1,035,157 $17.02 
3,656,074 $15.07 
Schedule of Share Based Compensation Valuation Techniques The weighted average fair values and relevant assumptions were as follows:
Nine months ended
September 28,
2024		September 30,
2023
Weighted average grant date fair value:
—SARs$6.95 $6.71 
—RSUs$14.91 $13.86 
—PRSUs$16.37 $15.88 
Inputs to the model:
—Expected volatility — SARs41.7 %43.4 %
—Expected volatility — PRSUs31.6 %37.7 %
—Expected option life for SARs (years)6.06.0
—Risk-free interest rate:
SARs4.2 %4.1 %
PRSUs4.4 %4.6 %