Employee Benefit Plans (Benefit Obligations in Excess of the Fair Value of Plan's Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 77,443	$ 79,058	$ 101,526
Accumulated benefit obligation	77,443	79,058
Fair value of plans' assets	57,882	56,157	$ 73,375
Projected benefit obligation greater than fair value of plans' assets	19,561	22,901
Accumulated benefit obligation greater than fair value of plans' assets	19,561	22,901
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	74,831	76,729
Accumulated benefit obligation	74,831	76,729
Fair value of plans' assets	57,882	56,157
Projected benefit obligation greater than fair value of plans' assets	16,949	20,572
Accumulated benefit obligation greater than fair value of plans' assets	16,949	20,572
Benefit Equalization Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	2,612	2,329
Accumulated benefit obligation	2,612	2,329
Fair value of plans' assets	0	0
Projected benefit obligation greater than fair value of plans' assets	2,612	2,329
Accumulated benefit obligation greater than fair value of plans' assets	$ 2,612	$ 2,329