Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical)

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Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]        
Unrealized holding gains (losses) on available-for-sale securities, tax (expense) benefit $ 0 $ (4) $ (4) $ 0
Unrealized gains (losses) on derivative transactions, tax (expense) benefit 1,372 825 223 577
Foreign currency translation adjustment, tax (expense) benefit $ (308) $ (149) $ (210) $ 111