Components of Net Pension Benefit Loss/(Gain) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2018 |
Jun. 30, 2017 |
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| Retirement Benefits [Abstract] | ||||
| Interest and service cost | $ 1,762 | $ 1,995 | $ 3,524 | $ 3,990 |
| Expected return on plan assets | (2,640) | (3,443) | (5,280) | (6,886) |
| Amortization of net loss | 878 | 826 | 1,756 | 1,652 |
| Net periodic loss/(benefit) | $ (622) | $ (1,244) | ||
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- Definition Defined Benefit Plan Interest and Service Cost No definition available.
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- References No definition available.
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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