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Stock And Options [Member] Restricted Stock And Options Variable Rate [Axis] Variable Rate [Axis] Schedule of Restricted Stock Activities Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Convertible trading days Debt Instrument, Convertible, Threshold Trading Days Tax Credit Carryforward, Name Tax Credit Carryforward, Name [Domain] Acquired contracts, supplier and distributor agreements Customer Contracts [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Interest expense, net Disposal Group, Including Discontinued Operation, Interest Income (Expense), Nonoperating Disposal Group, Including Discontinued Operation, Interest Income (Expense), Nonoperating