Benefit Plans - Level 3 Rollforward (Details) - Defined Benefit Pension Plans - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Defined Benefit Plan Disclosure | ||
| Fair value of plan assets at beginning of period | $ 314,892 | |
| Fair value of plan assets at end of the period | 287,542 | $ 314,892 |
| Significant Unobservable Inputs (Level 3) | ||
| Defined Benefit Plan Disclosure | ||
| Fair value of plan assets at beginning of period | 4,150 | 3,286 |
| Actual return on plan assets | 10 | (41) |
| Benefits paid | (385) | (48) |
| Contributions | 461 | 466 |
| Exchange rate changes | 785 | 487 |
| Fair value of plan assets at end of the period | $ 5,021 | $ 4,150 |
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. 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 asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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