Supplemental Disclosures (Schedule Of Accumulated Other Comprehensive Loss - Deferred Tax Liabilities) (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
Fair Value Measurements [Abstract]
Foreign currency translation adjustments and other	$ 0	$ (15,397)	$ 8,181	$ (16,127)
Unrealized holding gain on marketable securities	0	(42,029)	0	(39,209)
Unrealized holding gain on cash flow derivatives	0	9,731	0	18,505
Total increase in deferred tax liabilities	$ 0	$ (47,695)	$ 8,181	$ (36,831)