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Derivative Instruments And Hedging Activities (Effect Of The Derivative Instrument On The Consolidated Balance Sheet, Consolidated Statements Of Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion), net of tax $ 0 $ 23 $ 0 $ 34
Interest Rate Swap Contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion), net of tax 0 $ 23 0 $ 34
Amount of Gain (Loss) Recognized in Income (Ineffective Portion), net of tax $ 38   $ 71