Segment and Geographic Information (Geographic Information for Sales to External Customers and Long-lived Assets) (Details) (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
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales	$ 951,625	$ 1,004,165	$ 939,047	$ 864,647	$ 801,041	$ 821,175	$ 913,958	$ 1,034,867	$ 3,759,484	[1]	$ 3,571,041	[1]	$ 3,619,848	[1]
Long-lived assets	2,088,014				1,510,048				2,088,014		1,510,048
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales									3,404,378	[1]	3,176,202	[1]	3,221,562	[1]
Long-lived assets	2,081,091				1,502,902				2,081,091		1,502,902
Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	6,923				7,146				6,923		7,146
Canada [Member] | Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales									214,162	[1]	294,643	[1]	247,357	[1]
Switzerland [Member] | Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales									54,637	[1]	32,927	[1]	19,922	[1]
Singapore [Member] | Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales									24,028	[1]	15,308	[1]	29,210	[1]
Other Foreign Countries [Member] | Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net external sales									$ 62,279	[1]	$ 51,961	[1]	$ 101,797	[1]

[1] Revenues are attributed to countries based on location of customer.