Reportable Segments and Geographic Information (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary of geographic data
Revenue from external customers	$ 739,018	$ 775,584	$ 835,906	$ 809,896	$ 837,067	$ 716,684	$ 628,580	$ 611,915	$ 3,160,404	$ 2,794,246	$ 2,612,625
Property, plant and equipment, net	2,820,272				2,838,719				2,820,272	2,838,719	2,911,711
U.S.
Summary of geographic data
Revenue from external customers									1,911,425	1,810,713	1,436,504
Property, plant and equipment, net	1,945,991				1,879,268				1,945,991	1,879,268	1,970,129
International
Summary of geographic data
Revenue from external customers									1,248,979	983,533	1,176,121
Property, plant and equipment, net	$ 874,281				$ 959,451				$ 874,281	$ 959,451	$ 941,582