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Restructuring (Schedule of Restructuring Liability) (Details) - Termination and other costs [Member] - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Restructuring Reserve [Roll Forward]    
Beginning balance $ 5,570 $ 3,326
Restructuring charges accrued 1,095 12,558
Payments (4,195) (9,153)
Currency translation/other (360) (379)
Ending balance $ 2,110 $ 6,352