Pensions and Other Postretirement Benefit Plans (Schedule of Net Periodic Benefit Plan Cost) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components of net periodic benefit cost:
Settlement	$ 8,190		$ 119,735
Pension Plans [Member]
Components of net periodic benefit cost:
Service cost	3,269	3,662	3,486
Interest cost	9,505	8,852	12,180
Expected return on assets	(9,577)	(8,677)	(11,799)
Amortization of prior service cost/(credit)	53	35	35
Amortization of transition obligation		70	79
Amortization of net actuarial loss	2,421	3,117	4,223
Settlement	8,331	502	119,986
Curtailment (gain)/loss	(942)	(1,143)
Net periodic benefit cost	13,060	6,418	128,190
Health care cost trend rate (U.S. and non-U.S. plans):
Initial rate
Ultimate rate
Years to ultimate
Other Postretirement Benefits [Member]
Components of net periodic benefit cost:
Service cost	314	875	1,071
Interest cost	2,741	3,080	3,691
Expected return on assets
Amortization of prior service cost/(credit)	(4,488)	(3,940)	(3,666)
Amortization of transition obligation
Amortization of net actuarial loss	2,908	3,395	3,215
Settlement
Curtailment (gain)/loss
Net periodic benefit cost	$ 1,475	$ 3,410	$ 4,311
Health care cost trend rate (U.S. and non-U.S. plans):
Initial rate
Ultimate rate
Years to ultimate
United States Pension Plan [Member]
Weighted average assumptions used to determine net cost:
Discount rate	5.22%	4.28%	4.82%
Expected return on plan assets	5.40%	4.61%	4.82%
Rate of compensation increase
Non-U.S. Pension Plans [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.50%	4.09%	4.48%
Expected return on plan assets	5.65%	5.53%	6.26%
Rate of compensation increase	3.39%	3.26%	3.19%
United States Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.68%	3.93%	4.86%
Expected return on plan assets
Rate of compensation increase		3.00%	3.00%
Non-U.S. Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.75%	4.00%	4.20%
Expected return on plan assets
Rate of compensation increase	3.00%	3.00%	3.00%

Defined Benefit Plan Years Until Rate Reaches Ultimate Trend Rate.

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The amount of gains or losses recognized in net periodic benefit cost.

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The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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

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An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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Expected rate of compensation increases (for pay-related plans).

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An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

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The assumed health care cost trend rate for the next year 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 increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

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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 actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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The ultimate trend rate for health care costs.

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