Postretirement Benefits Other Than Pensions (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Postretirement Benefits Other Than Pensions (Textual) [Abstract]
Unrecognized prior service credits	$ 249
Unrecognized prior service credits, net of tax	223
Unrecognized actuarial gains	(87,812)
Unrecognized actuarial gains, net of tax	(78,237)
Cumulative other comprehensive loss and expected to be recognized in net periodic benefit cost	21	2,689
U.S. Other Postretirement Benefits [Member]
Postretirement Benefits Other Than Pensions (Textual) [Abstract]
Defined Benefit Plan, Health care cost trend rate	7.39%
Non-U.S. Other Postretirement Benefits [Member]
Postretirement Benefits Other Than Pensions (Textual) [Abstract]
Defined Benefit Plan, Health care cost trend rate	8.00%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Postretirement Benefits Other Than Pensions (Textual) [Abstract]
Unrecognized prior service credits	4,151
Unrecognized prior service credits, net of tax	3,861
Unrecognized actuarial gains	8,022
Unrecognized actuarial gains, net of tax	10,581
Cumulative other comprehensive loss and expected to be recognized in net periodic benefit cost	1,270
Other post retirement benefits, grading down over time	5.00%
Other post retirement benefits recorded in consolidated balance sheets	$ 7,767	$ 8,158
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Liability recognized in the balance sheet for termination indemnity plans.

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After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

+ References

No definition available.

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- Definition

The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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Amount related to after tax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

+ References

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Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

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The aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

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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 ultimate trend rate for health care costs.

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