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Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Total Gross Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance at beginning of year: $ 3,772 $ 3,282
Increase related to prior year tax positions 704 185
Decrease related to prior year tax positions (43) (113)
Increase related to current year tax positions 984 924
Decrease related to statute of limitation lapses 0 (506)
Balance at end of year: $ 5,417 $ 3,772