v3.26.1
Components of Pension Plan Net Periodic Benefit Costs (Tables)
6 Months Ended
Jun. 30, 2026
Defined benefit pension plan  
Defined Benefit Plan Disclosure [Line Items]  
Components of net periodic benefit cost

  ​ ​ ​

Three Months Ended

Six Months Ended

June 30, 

June 30, 

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

(in thousands)

Interest cost

$

1,268

$

1,310

$

2,537

$

2,620

Expected return on plan assets

 

(1,486)

 

(1,709)

 

(2,972)

 

(3,418)

Amortization of prior service cost

2

5

Net periodic benefit credit (1)

$

(218)

$

(397)

$

(435)

$

(793)

(1)Net periodic benefit credit for the Pension Plan is included in the Other income line item within our condensed consolidated statements of income.