Employee Benefit Plans (Schedule of Amounts that Will Be Amortized from Other Comprehensive Loss) (Details) $ in Thousands |
Dec. 31, 2019
USD ($)
|
|---|---|
| Pension [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Defined benefit plan, Net actuarial loss | $ 1,434 |
| Defined benefit plan, Total | 1,434 |
| SERP [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Defined benefit plan, Prior service costs | (3) |
| Defined benefit plan, Net actuarial loss | 188 |
| Defined benefit plan, Total | $ 185 |