Pensions and Other Postretirement Benefits (Fair Value of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	$ 19,717	$ 18,157
Level 1 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	1,577	1,678
Level 2 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	18,140	16,479
Level 3 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	0	0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	9,262	8,779
Equity securities | Level 1 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	0	0
Equity securities | Level 2 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	9,262	8,779
Equity securities | Level 3 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	0	0
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	7,646	7,700
Fixed income securities | Level 1 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	0	0
Fixed income securities | Level 2 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	7,646	7,700
Fixed income securities | Level 3 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	0	0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	2,809	1,678
Cash and cash equivalents | Level 1 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	1,577	1,678
Cash and cash equivalents | Level 2 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	1,232	0
Cash and cash equivalents | Level 3 Inputs
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan assets	$ 0	$ 0