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Discontinued Operations and Assets and Liabilities Held For Sale (Summary of Restructuring Activities) (Details) - Astora Restructuring
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
Restructuring Reserve [Roll Forward]  
Beginning liability balance $ 5,516
Cash distributions (4,127)
Ending liability balance 1,389
Employee Separation and Other Benefit-Related Costs  
Restructuring Reserve [Roll Forward]  
Beginning liability balance 3,855
Cash distributions (3,175)
Ending liability balance 680
Contract Termination Charges  
Restructuring Reserve [Roll Forward]  
Beginning liability balance 1,661
Cash distributions (952)
Ending liability balance $ 709