Segment Information (Income Loss Before Provision for Income Tax of Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	$ 300,535	$ (74,758)	$ 499,975	$ 204,069
US Traditional Segment Reporting Information [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	93,988	90,213	144,960	169,756
US Non-Traditional Segment Reporting Information [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	95,474	80,996	178,598	178,560
Canada Segment Reporting Information [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	35,020	35,659	55,084	71,967
EMEA [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	61,322	11,949	76,527	22,912
Asia Pacific [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	34,928	(287,345)	61,239	(269,103)
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Loss From Continuing Operations Before Provision For Income Tax Segment	$ (20,197)	$ (6,230)	$ (16,433)	$ 29,977