Retirement Plans (Schedule Of Net Benefit Costs) (Details) - Pension Plan - USD ($) $ in Thousands |
12 Months Ended | |
---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
United States | ||
Components of net periodic benefit costs | ||
Interest cost | $ 622 | $ 684 |
Expected return on plan assets | (853) | (710) |
Recognized net actuarial loss | 96 | 130 |
Net periodic pension (income) cost | (135) | 104 |
United Kingdom | ||
Components of net periodic benefit costs | ||
Interest cost | 194 | 236 |
Expected return on plan assets | (260) | (280) |
Amortization of prior service costs and transition amount | 42 | 19 |
Recognized net actuarial loss | 208 | 192 |
Net periodic pension (income) cost | $ 184 | $ 167 |