Derivative Instruments, Hedging Activities and Fair Value (Details 2) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Effect of derivative instruments
Amount of Gain (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative - Effective Portion	$ 1,136	$ 14,295	$ 8,430	$ 12,669
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion		(24)		(24)
Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing	(4,676)	19,587	(23,457)	34,091
Foreign currency forward exchange contracts
Effect of derivative instruments
Amount of Gain (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative - Effective Portion	(172)	1	(699)	140
Derivatives Not Designated as Hedging Instruments
Amount of Gain (Loss) Recognized in Income on Derivative, included in Cost of services and products sold	(1,956)	5,406	(7,077)	8,087
Cross-currency interest rate swaps
Effect of derivative instruments
Amount of Gain (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative - Effective Portion	1,308	14,327	9,129	12,562
Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing	(4,676)	19,607	(23,457)	34,111
Commodity contracts
Effect of derivative instruments
Amount of Gain (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative - Effective Portion		(33)		(33)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion		(24)		(24)
Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing		$ (20)		$ (20)