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Accumulated Other Comprehensive Income (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Reclassifications Out of Accumulated Other Comprehensive Income [Line Items]        
Derivatives Reclassification Adjustment from AOCI, net tax $ (24) $ (34) $ (50) $ (69)
Reclassification from Accumulated Other Comprehensive Income     $ (50)