Pensions and Other Postretirement Benefit Plans (Schedule of Plan Benefit Obligations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Plans [Member]
Change in benefit obligation:
Benefit obligation, beginning of year	$ 405,880	$ 374,115
Service cost	3,486	3,117	3,572
Interest cost	12,180	19,958	19,644
Plan participants' contributions	344	387
Actuarial loss/(gain)	49,582	39,712
Benefits paid	(14,909)	(26,598)
Settlements	(249,709)	(891)
Special / Contractual Termination Benefits		233
Other	571
Foreign currency changes	11,113	(4,153)
Benefit obligation, end of year	218,538	405,880	374,115
Accumulated benefit obligation	202,917	391,457
Other Postretirement Benefits [Member]
Change in benefit obligation:
Benefit obligation, beginning of year	79,009	72,137
Service cost	1,071	931	910
Interest cost	3,691	3,869	4,054
Plan participants' contributions	817	1,319
Actuarial loss/(gain)	6,343	6,977
Benefits paid	(5,778)	(7,142)
Settlements
Special / Contractual Termination Benefits
Other		945
Foreign currency changes	32	(27)
Benefit obligation, end of year	84,368	79,009	72,137
Accumulated benefit obligation
United States Pension Plan [Member]
Weighted average assumptions used to determine benefit obligations, end of year:
Discount rate	4.28%	4.82%
Compensation increase
Non-U.S. Pension Plans [Member]
Weighted average assumptions used to determine benefit obligations, end of year:
Discount rate	4.09%	4.48%
Compensation increase	3.26%	3.19%
United States Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine benefit obligations, end of year:
Discount rate	3.93%	4.86%
Compensation increase	3.00%	3.00%
Non-U.S. Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine benefit obligations, end of year:
Discount rate	4.00%	4.20%
Compensation increase	3.00%	3.00%

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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-Name Accounting Standards Codification

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Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation or plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

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

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

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.

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Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency.

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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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Changes in the defined benefit obligation, not otherwise separately disclosed in the financial statements.

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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 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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The amount of increase related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment.

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