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Accumulated Other Comprehensive Income (Loss)
12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income (loss) (“AOCI(L)”) is composed of adjustments to the Company’s pension and postretirement medical benefit plans and unrealized gains/losses on the Company’s available-for-sale short-term investments.

Following is a summary of AOCI(L) for 2025, 2024 and 2023:

 Gains (Losses) During the PeriodReclassification to Income
(in thousands)December 31,
2024
Pre-tax
Activity
Tax
Effect
Pre-tax
Activity
Tax
Effect
December 31,
2025
Net pension activity:      
Actuarial gain$4,418 $26 $(5)$— $— $4,439 
Prior service costs(85)(124)31 16 (5)(167)
Net postretirement benefits activity:
Actuarial gain (loss)2,960 (10,539)2,594 187 (46)(4,844)
Prior service costs(624)— — — — (624)
Unrealized gain on short-term investments25 20 (6)(53)14 — 
Reclassification of stranded tax effects(4,809)— — — — (4,809)
Total AOCI(L)$1,885 $(10,617)$2,614 $150 $(37)$(6,005)

Gains (Losses) During the PeriodReclassification to Income
(in thousands)December 31,
2023
Pre-tax
Activity
Tax
Effect
Pre-tax
Activity
Tax
Effect
December 31,
2024
Net pension activity:
Actuarial gain$533 $5,144 $(1,259)$— $— $4,418 
Prior service costs(97)— — 16 (4)(85)
Net postretirement benefits activity:
Actuarial gain721 2,920 (715)44 (10)2,960 
Prior service costs(624)— — — — (624)
Unrealized gain on short-term investments— 33 (8)— — 25 
Reclassification of stranded tax effects(4,809)— — — — (4,809)
Total AOCI(L)$(4,276)$8,097 $(1,982)$60 $(14)$1,885 

Gains (Losses) During the PeriodReclassification to Income
(in thousands)December 31,
2022
Pre-tax
Activity
Tax
Effect
Pre-tax
Activity
Tax
Effect
December 31,
2023
Net pension activity:
Actuarial loss$(71,140)$3,036 $(744)$1,946 $(476)$(67,378)
Prior service costs(105)(5)16 (4)(97)
Pension plan settlement— — — 112,796 (44,885)67,911 
Net postretirement benefits activity:
Actuarial gain6,752 (7,986)1,955 — — 721 
Prior service costs(624)— — — — (624)
Reclassification of stranded tax effects(19,720)— — — 14,911 (4,809)
Total AOCI(L)$(84,837)$(4,955)$1,212 $114,758 $(30,454)$(4,276)