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Other Information (Schedule Of Accumulated Other Comprehensive Loss - Deferred Tax Liabilities) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Fair Value Measurements [Abstract]      
Foreign currency translation adjustments and other $ 2,559 $ (14,421) $ 3,210
Unrealized holding gain on marketable securities 0 (11,010) 15,324
Unrealized holding gain (loss) on cash flow derivatives 0 28,759 30,074
Total increase in deferred tax liabilities $ 2,559 $ 3,328 $ 48,608