v3.26.1
Pension and Other Postretirement Benefit Costs (Tables)
 6 Months Ended
Jun. 30, 2026
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]  
Schedule of Net Benefit Costs
The following table provides the components of net periodic benefit cost (credit) for the pension and other postretirement benefit plans:
Three Months Ended June 30,Six Months Ended June 30,
Pension BenefitsOther Postretirement
Benefits		Pension BenefitsOther
Postretirement Benefits
In thousands20262025202620252026202520262025
Service cost$854 $886 $27 $28 $1,709 $1,771 $53 $55 
Interest cost5,166 5,410 282 289 10,333 10,820 564 577 
Expected return on plan assets(5,590)(5,433)— — (11,181)(10,866)— — 
Amortization of net actuarial loss2,296 2,445 62 21 4,591 4,889 125 41 
Net periodic benefit cost 2,726 3,308 371 338 5,452 6,614 742 673 
Amount allocated to construction(417)(429)(11)(11)(822)(863)(22)(22)
Net periodic benefit cost charged to expense2,309 2,879 360 327 4,630 5,751 720 651 
Amortization of regulatory balancing account1,281 1,281 — — 4,082 4,082 — — 
Net amount charged to expense$3,590 $4,160 $360 $327 $8,712 $9,833 $720 $651 
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)
The following table presents amounts recognized in accumulated other comprehensive loss (AOCL) and the changes in AOCL related to non-qualified employee benefit plans:
Three Months Ended June 30,Six Months Ended June 30,
In thousands2026202520262025
Beginning balance$(4,614)$(6,877)$(4,705)$(7,052)
Amounts reclassified from AOCL:
Amortization of actuarial losses124 199 248 399 
Total reclassifications before tax124 199 248 399 
Tax benefit(33)(25)(66)(50)
Total reclassifications for the period91 174 182 349 
Ending balance$(4,523)$(6,703)$(4,523)$(6,703)