Other Liabilities (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Other Liabilities Disclosure [Abstract]
Liability for pension and post employment benefits	$ 71,208,000	$ 78,282,000
Deferred compensation	26,281,000	20,698,000
Liability for uncertain tax positions	61,341,000	48,038,000
Other	51,134,000	1,411,000
Other liabilities (less current portion)	209,964,000	148,429,000
Contingent consideration liability	9,300,000
Other Obligation	$ 40,700,000