v3.26.3
Employee Retirement Plans
 9 Months Ended
Sep. 30, 2026
Retirement Benefits [Abstract]  
Employee Retirement Plans Note 16.    Employee Retirement Plans.
Retirement Plan Expenses — Summary
The following table presents employee retirement plan expenses for the periods ended (in thousands):
Three months ended September 30,
Nine months ended September 30,
2026
2025
2026
2025
Qualified Defined Benefit Plan (DB Plan)
$2,848
$2,848
$8,543
$8,543
Non-Qualified Deferred Compensation Plan (DCP)
1,876
2,443
7,095
5,754
Qualified Defined Contribution Plan (DC Plan)
919
896
2,908
2,814
Postretirement Health Benefit Plan
(3)
(10)
(7)
(32)
Total retirement plan expenses
$5,640
$6,177
$18,539
$17,079
Non-Qualified Deferred Compensation Plan (DCP)
Components of the net periodic pension cost for the Defined Benefit component of the Non-Qualified Deferred Compensation Plan
were as follows (in thousands):
Three months ended September 30,
Nine months ended September 30,
2026
2025
2026
2025
Service cost
$339
$303
$1,017
$909
Interest cost
1,036
965
3,108
2,895
Amortization of unrecognized net loss
181
—
543
—
Amortization of unrecognized past service cost
18
18
54
54
Net periodic benefit cost - Defined Benefit component
$1,574
$1,286
$4,722
$3,858
Non-Qualified Deferred Incentive Compensation - Defined
Contribution component
302
1,157
2,373
1,896
Total
$1,876
$2,443
$7,095
$5,754
Postretirement Health Benefit Plan
Components of the net periodic benefit cost for the postretirement health benefit plan were as follows (in thousands):
Three months ended
September 30,
Nine months ended
September 30,
2026
2025
2026
2025
Service cost (benefits attributed to service during the period)
$1
$2
$5
$6
Interest cost on accumulated postretirement health benefit obligation
74
74
222
222
Amortization of (gain)/loss
(78)
(86)
(234)
(260)
Net periodic postretirement health benefit expense/(income)
$(3)
$(10)
$(7)
$(32)