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Restructuring and Other Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Restructuring and Other Expense [Line Items]                      
Restructuring charges                 $ 21,671 $ 21,512 $ 17,376
Assets held for sale $ 3,095       $ 0       3,095 0  
Pension settlement expense                 0 0 1,443
Legal Fees [Member]                      
Restructuring and Other Expense [Line Items]                      
Legal Fees                   1,500  
Patent Dispute and Other Matters [Member]                      
Restructuring and Other Expense [Line Items]                      
Legal Fees             $ 1,400 $ 1,900   1,900  
Settlement cost               900   900  
Cost of Sales [Member]                      
Restructuring and Other Expense [Line Items]                      
Restructuring charges                 8,016 5,612 8,626
Cost of Sales [Member] | Facility Consolidation Costs [Member]                      
Restructuring and Other Expense [Line Items]                      
Restructuring charges 2,800 $ 1,300 $ 1,500 $ 2,300 1,900 $ 1,400 1,400 900 8,016 5,612 6,489
Cost of Sales [Member] | Termination of Product Offering [Member]                      
Restructuring and Other Expense [Line Items]                      
Restructuring charges                 0 0 2,137
Selling and Administrative Expenses [Member]                      
Restructuring and Other Expense [Line Items]                      
Business and asset acquisition costs 2,100                    
Pension settlement expense                 0 0 1,443
Restructuring and other expense                 16,198 23,962 13,399
Selling and Administrative Expenses [Member] | Business [Member]                      
Restructuring and Other Expense [Line Items]                      
Business and asset acquisition costs                 2,543 722 0
Selling and Administrative Expenses [Member] | Shareholder Activism Costs [Member]                      
Restructuring and Other Expense [Line Items]                      
Professional fees           2,400 900 600 0 3,966 0
Selling and Administrative Expenses [Member] | Patent Dispute and Other Matters [Member]                      
Restructuring and Other Expense [Line Items]                      
Legal Fees                 0 3,374 3,206
Selling and Administrative Expenses [Member] | Administrative Restructuring [Member]                      
Restructuring and Other Expense [Line Items]                      
Restructuring charges $ 4,300 $ 1,100 $ 2,200 $ 6,200 1,500 600 $ 500 $ 700 13,655 3,354 8,750
Selling and Administrative Expenses [Member] | Executive Restructuring [Member]                      
Restructuring and Other Expense [Line Items]                      
Restructuring charges         $ 1,500 $ 11,000     $ 0 $ 12,546 $ 0