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, 2012	Dec. 31, 2011	Dec. 31, 2010
Components of net periodic benefit cost:
Settlement	$ 119,735
Pension Plans [Member]
Components of net periodic benefit cost:
Service cost	3,486	3,117	3,572
Interest cost	12,180	19,958	19,644
Other adjustments
Expected return on assets	(11,799)	(15,858)	(15,127)
Amortization of prior service cost/(credit)	35	37	16
Amortization of transition obligation	79	83	94
Amortization of net actuarial loss	4,223	5,672	4,738
Settlement	119,986	327	839
Curtailment (gain)/loss			34
Special / contractual termination benefits		233
Net periodic benefit cost	128,190	13,569	13,810
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	1,071	931	910
Interest cost	3,691	3,869	4,054
Other adjustments		945
Expected return on assets
Amortization of prior service cost/(credit)	(3,666)	(3,666)	(3,666)
Amortization of transition obligation
Amortization of net actuarial loss	3,215	3,022	2,923
Settlement
Curtailment (gain)/loss			(1,921)
Special / contractual termination benefits
Net periodic benefit cost	$ 4,311	$ 5,101	$ 2,300
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	4.82%	5.59%	5.80%
Expected return on plan assets	4.82%	5.80%	6.10%
Rate of compensation increase
Non-U.S. Pension Plans [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.48%	5.29%	5.84%
Expected return on plan assets	6.26%	6.80%	6.91%
Rate of compensation increase	3.19%	3.47%	3.42%
United States Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.86%	5.55%	5.70%
Expected return on plan assets
Rate of compensation increase	3.00%	3.00%	3.00%
Non-U.S. Postretirement Benefits Plan [Member]
Weighted average assumptions used to determine net cost:
Discount rate	4.20%
Expected return on plan assets
Rate of compensation increase	3.00%