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Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
Dec. 31, 2016
Significant Accounting Policies [Line Items]  
Repayment period of distributor (in days) 30 days
Standard product warranty, period from the date of shipment (in years) 2 years
Repayment period of account receivable, cash discount, after the date of shipment (in days) 10 days
Minimum [Member] | Building [Member]  
Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment (in years) 30 years
Minimum [Member] | Machinery and Equipment [Member]  
Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment (in years) 3 years
Maximum [Member] | Building [Member]  
Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment (in years) 50 years
Maximum [Member] | Machinery and Equipment [Member]  
Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment (in years) 20 years