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Supplemental Disclosures (Schedule Of Accumulated Other Comprehensive Loss - Deferred Tax Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Fair Value Measurements [Abstract]    
Foreign currency translation adjustments and other $ 8,181 $ (730)
Unrealized holding gain on marketable securities 0 2,820
Unrealized holding gain on cash flow derivatives 0 8,774
Total increase in deferred tax liabilities $ 8,181 $ 10,864