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Benefit Plans Textuals (Details) $ in Thousands	1 Months Ended	12 Months Ended
	May. 15, 2016 USD ($) Rate	Dec. 31, 2015 USD ($) Rate	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) Rate
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Cost		$ 16,000	$ 15,600	$ 15,100
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent		158,944	182,135
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities		5,083	5,324
Aggregate Projected Benefit Obligation		168,400
Aggregate Accumulated Benefit Obligation		158,200
Aggregate Fair Value of Plan Assets		42,900
Voluntary Benefit Payments for Defined Benedit Plans			18,000
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent		35,205	32,268
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities		92	69
Defined Benefit Plan, Accumulated Benefit Obligation		$ 154,400	$ 164,400
Discount Rate		4.27%	4.00%	4.75%
Discount Rate		4.00%	4.75%	3.75%
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent		$ 120,950	$ 146,692
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities		4,508	4,676
Defined Benefit Plan, Accumulated Benefit Obligation		$ 803,300	$ 834,700
Discount Rate		1.31%	1.65%	2.73%
Discount Rate		1.65%	2.73%	2.50%
Estimated Future Employer Contributions in Next Fiscal Year		$ 19,400
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent		2,789	$ 3,175
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities		$ 483	$ 579
Discount Rate		3.54%	4.00%	4.75%
Discount Rate		4.00%	4.75%	3.75%
Healthcare Cost Trend Rate Maximum		8.00%	8.50%	8.00%
Healthcare Cost Trend Rate Minimum | Rate		7.75%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		5.00%
Estimated Future Employer Contributions in Next Fiscal Year			$ 500
Debt Securities [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		11.00%
Equity Securities, Range Maximum		21.00%
Debt Securities [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		35.00%
Equity Securities, Range Maximum		55.00%
Equity Securities [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		33.00%
Equity Securities, Range Maximum		53.00%
Equity Securities [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		25.00%
Equity Securities, Range Maximum		45.00%
Other [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		30.00%
Equity Securities, Range Maximum		50.00%
Other [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity Securities, Range Minimum		15.00%
Equity Securities, Range Maximum		25.00%
Subsequent Event [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of Employees offered Lump Sum Settlement of US Pension Plan	700
Defined Benefit Plan, Settlements, Benefit Obligation	$ 32,000
Percent of Pension Benefit Obligation Settlement | Rate	21.00%
Threshold for determining Pension Settlement Charge | Rate	18.00%
Minimum Pension Settlement Charge	$ 7,000
Maximum Pension Settlement Charge	$ 13,000

X

- Definition

The maximum in a range of medical and prescription drug health care cost trend rates used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

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The minimum in a range of medical and prescription drug health care cost trend rates used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

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The maximum amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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The minimum amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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Number of Employees offered Lump Sum Settlement of US Pension Plan

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The percent of decrease that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts.

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Threshold for determining Pension Settlement Charge - the amount settled verse the service and interest cost.

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The amount paid in addition to the required current year defined benefit contribution.

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For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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The interest rate used to adjust for the time value of money for the plan.

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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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The amount of decrease that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts.

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Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

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Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

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The ultimate trend rate for health care costs.

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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.

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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The amount of the cost recognized during the period for defined contribution plans.

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For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

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This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

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