Information by Segment and Geographic Area (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	$ 2,896,520	$ 3,046,018	$ 3,302,740
Net Property, Plant and Equipment	711,346	1,266,225	1,274,484
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	1,021,770	1,108,051	1,087,454
Net Property, Plant and Equipment	147,820	242,890	276,966
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	353,915	331,894	398,222
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property, Plant and Equipment	86,822	55,656	21,700
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from Unaffiliated Customers	1,520,835	1,606,073	1,817,064
Net Property, Plant and Equipment	$ 476,704	$ 967,679	$ 975,818