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Exit Activity Costs and Asset Impairments (Reconciles Of Liability For Exit Activity Costs Relating To Facility Consolidation Efforts) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restructuring Reserve [Roll Forward]      
Balance as of $ 961 $ 3,744  
Exit activity costs recognized 3,475 7,125 $ 6,217
Cash payments (2,513) (9,908)  
Balance as of $ 1,923 $ 961 $ 3,744