Pension and Other Post Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2022

Pension Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of components of net periodic benefit costs - pension plans [Table Text Block]

Three Months Ended June 30, 

Six Months Ended June 30, 

Other

Other

Postretirement

Postretirement

Pension Benefits

Benefits

Pension Benefits

Benefits

2022

2021

2022

2021

2022

2021

2022

2021

Service cost

$

174

$

316

$

8

$

2

$

354

$

632

$

—

$

3

Interest cost

1,317

1,094

2

10

2,677

2,184

11

21

Expected return on plan assets

(2,012)

(2,093)

—

—

(4,097)

(4,175)

—

—

Actuarial loss amortization

248

857

(23)

—

505

1,712

(47)

—

Prior service cost amortization

2

3

(9)

—

5

5

(8)

—

Net periodic benefit (income)

 cost

$

(271)

$

177

$

(22)

$

12

$

(556)

$

358

$

(44)

$

24