Segment Information Revenues By Region (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues from External Customers [Line Items]
Revenue, Net	$ 482,175	$ 579,140	$ 929,711	$ 1,150,780
United States and Canada [Member]
Revenues from External Customers [Line Items]
Revenue, Net	211,565	292,999	388,771	577,586
EMEA [Member]
Revenues from External Customers [Line Items]
Revenue, Net	215,250	215,899	427,145	436,855
Other Countries [Member]
Revenues from External Customers [Line Items]
Revenue, Net	$ 55,360	$ 70,242	$ 113,795	$ 136,339