v3.26.1
Employee Retirement Plans
 6 Months Ended
Jun. 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 June 30,
Six months ended June 30,
2026
2025
2026
2025
Qualified Defined Benefit Plan (DB Plan)
$2,848
$2,848
$5,696
$5,696
Non-Qualified Deferred Compensation Plan (DCP)
3,845
2,548
5,219
3,311
Qualified Defined Contribution Plan (DC Plan)
968
934
1,989
1,918
Postretirement Health Benefit Plan
(2)
(11)
(4)
(22)
Total retirement plan expenses
$7,659
$6,319
$12,900
$10,903
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 June 30,
Six months ended June 30,
2026
2025
2026
2025
Service cost
$339
$303
$678
$606
Interest cost
1,036
965
2,072
1,930
Amortization of unrecognized net loss
181
—
362
—
Amortization of unrecognized past service cost
18
18
36
36
Net periodic benefit cost - Defined Benefit component
$1,574
$1,286
$3,148
$2,572
Non-Qualified Deferred Incentive Compensation - Defined
Contribution component
2,271
1,262
2,071
739
Total
$3,845
$2,548
$5,219
$3,311
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 June 30,
Six months ended June 30,
2026
2025
2026
2025
Service cost (benefits attributed to service during the period)
$2
$2
$4
$4
Interest cost on accumulated postretirement health benefit obligation
74
74
148
148
Amortization of (gain)/loss
(78)
(87)
(156)
(174)
Net periodic postretirement health benefit expense/(income)
$(2)
$(11)
$(4)
$(22)