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Income Taxes (Schedule Of Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Abstract]      
Balances as of January 1 $ 18,070 $ 18,091 $ 14,759
Additions related to prior year tax positions 104 141 7,056
Decreases related to prior year tax positions   162 3,724
Balance as of December 31 $ 18,174 $ 18,070 $ 18,091