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Pension and Postretirement Benefits - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items] |  |  |
Assumed health care cost trend rate | 7.00% | 7.50% |
Decrease in assumed health care cost trend rate | 4.50% | 5.00% |
Effect of one percentage point increase on accumulated post retirement benefit obligation | $ 1,500 |  |
Effect of one percentage point increase in assumed health care cost trend rate on total service and interest cost components | 100 |  |
Effect of one percentage point decrease in assumed health care cost trend rate on accumulated post retirement benefit obligation | 1,300 |  |
Effect of one percentage point decrease in assumed health care cost trend rate on total service and interest cost components | $ 100 |  |
Maximum percentage of funding status of plans in red zone | 65.00% |  |
Maximum percentage of funding status of plans in yellow zone | 80.00% |  |
Maximum percentage of funding status of plans in green zone | 80.00% |  |
401(k) plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of employer matching contribution with employee gross pay | 100.00% |  |
Percentage of employer matching contribution match with 100 percent | 3.00% |  |
Percentage of employer matching contribution | 50.00% |  |
Percentage of employer matching contribution match with 50 percent | 2.00% |  |
Expense associated with other employee benefit plans | $ 3,700 | $ 3,300 | $ 1,300
US Postretirement and Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Estimated net actuarial loss for pension plans that is expected to be amortized | 400 |  |
Estimated prior service credit for postretirement benefit plans | 500 |  |
US Postretirement and Pension Plan | Unfunded Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Estimated net actuarial loss for pension plans that is expected to be amortized | 100 |  |
US Postretirement and Pension Plan | Funded Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Estimated net actuarial loss for pension plans that is expected to be amortized | 300 |  |
Foreign Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Estimated net actuarial loss for pension plans that is expected to be amortized | (160) | 145 | (248)
Net actuarial losses for the foreign funded plans (before tax) | (3,300) | (4,000) |
Net actuarial losses for the foreign funded plans (after tax) | (2,500) | (3,100) |
Net actuarial losses for the foreign unfunded plans (before tax) | (400) | (400) |
Net actuarial losses for the foreign unfunded plans (after tax) | (300) | (200) |
Pension Plans | Unfunded Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Amount expected to contribute in unfunded pension plans | 800 |  |
Pension Plans | Funded Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Amount expected to contribute in funded pension plans | 900 |  |
US Postretirement Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Estimated prior service credit for postretirement benefit plans | $ 552 | 593 | $ 902
Amount expected to contribute in postretirement benefit plans |  | $ 1,100 |

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