Defined Pension Plans (Schedule of Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands |
6 Months Ended | |
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Jun. 30, 2019 |
Jun. 30, 2018 |
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Defined Benefit Pension Plan [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Service cost - benefits earned during the year | $ 3,708 | $ 4,017 |
Interest cost on projected benefit obligation | 4,083 | 3,703 |
Expected return on plan assets | (4,754) | (5,202) |
Net amortization | 1,634 | 1,522 |
Net periodic pension cost | 4,671 | 4,040 |
Unfunded Supplemental Executive Retirement Plan [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Service cost - benefits earned during the year | 97 | 92 |
Interest cost on projected benefit obligation | 408 | 348 |
Net amortization | 276 | 581 |
Net periodic pension cost | $ 781 | $ 1,021 |
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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