v3.26.3
Employee Benefits (Tables)
 9 Months Ended
Sep. 30, 2026
Postemployment Benefits [Abstract]  
Schedule of Net Periodic Benefit Costs The components of net periodic pension benefit for the defined benefit plans for the three and nine months ended September 30, 2026 and 2025 were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
(thousands of U.S. dollars)2026202520262025
Service cost$116 $126 $350 $371 
Interest cost2,280 2,405 6,913 7,105 
Expected return on plan assets(4,145)(4,015)(12,563)(11,864)
Net periodic benefit$(1,749)$(1,484)$(5,300)$(4,388)
The components of net periodic pension cost for the other benefit plans for the three and nine months ended September 30, 2026 and 2025 were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
(thousands of U.S. dollars)2026202520262025
Service cost$1 $1 $3 $4 
Interest cost75 79 227 234 
Amortization of net actuarial gain(33)(18)(100)(54)
Net periodic cost$43 $62 $130 $184