Pension and Postretirement Benefits (Details 6) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Domestic Pension Plans [Member] \| Funded Plans [Member]
Accumulated benefit obligation in excess of plan assets
Projected Benefit obligation	$ 15,348	$ 13,938
Accumulated benefit obligation	15,348	13,938
Fair value of Plan assets	10,624	9,846
Domestic Pension Plans [Member] \| Unfunded Pension Plans [Member]
Accumulated benefit obligation in excess of plan assets
Projected Benefit obligation	11,570	10,883
Accumulated benefit obligation	11,322	10,589
Fair value of Plan assets
Foreign Plans [Member] \| Funded Plans [Member]
Accumulated benefit obligation in excess of plan assets
Projected Benefit obligation	15,387	13,141
Accumulated benefit obligation	14,307	12,049
Fair value of Plan assets	12,997	11,028
Foreign Plans [Member] \| Unfunded Pension Plans [Member]
Accumulated benefit obligation in excess of plan assets
Projected Benefit obligation	3,032	2,939
Accumulated benefit obligation	3,032	2,939
Fair value of Plan assets

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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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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