text: The Chief Executive Officer and Chief Financial Officer are the chief 
  operating decision makers and regularly review our operations and 
  performance by segment. They review adjusted operating profit as a 
  key measure of performance for each segment and to make decisions 
  about the allocation of resources. Adjusted operating profit is income 
  before restructuring, acquisition and other expenses, stock-based 
  compensation expense, depreciation and amortization, impairment of 
  assets, finance costs, other income, and income taxes. This measure of 
  segment operating results is different from operating income on the 
  consolidated statements of income. 