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Fair Value Measurements (Schedule Of Accumulated Other Comprehensive Loss - Deferred Tax Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Fair Value Measurements [Abstract]        
Foreign currency translation adjustments and other $ (15,397) $ (884) $ (16,127) $ 1,350
Unrealized holding gain on marketable securities (42,029) (6,588) (39,209) 429
Unrealized holding gain on cash flow derivatives 9,731 8,480 18,505 13,600
Total increase (decrease) in deferred tax liabilities $ (47,695) $ 1,008 $ (36,831) $ 15,379