Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details)

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Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
item
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Accounting Policies [Abstract]          
Number of operating segments | item     1    
Accounts Receivable and Net investment in sales-type leases          
Allowance for doubtful accounts receivable     $ 843 $ 675  
Allowance for doubtful accounts due to investment in sales-type leases     844 682  
Inventories          
Inventory write-downs for obsolescence and excess inventories     7,700 9,800  
Property, Plant and Equipment          
Impairment charges $ 792,000 $ 150,400 7,000 10,500  
Goodwill          
Goodwill impairment     942,408 $ 102,470
Other Intangible Assets          
Impairment of Intangible Assets (Excluding Goodwill)     16,900 260,300 11,600
Impairment charges of indefinite-life intangible assets     1,000 18,200 3,000
Advertising costs     $ 19,400 $ 23,500 $ 23,500
Research and Development Costs          
Maximum additional tax rate on distribution of dividends     10.00%    
Settlement percentage     50.00%    
Vesting period     4 years    
Stock-Based Compensation          
Expected dividend rate (as a percent)     0.00%    
Business Combinations          
Maximum measurement period of revision of consideration transferred     1 year