Segment Information (Revenues by geographic region) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]
Revenue, Net	$ 519,550	$ 395,328	$ 1,566,197	$ 1,156,611
Americas [Member]
Segment Reporting Information [Line Items]
Revenue, Net	399,597		1,232,357
Europe [Member]
Segment Reporting Information [Line Items]
Revenue, Net	89,088		252,724
Other Geographic Locations [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 30,865		$ 81,116