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Capital Stock - Maximum Number of Shares Outstanding Exercised or Converted (Detail) - Convertible Common Stock [Member] - Scenario, Forecast [Member] - Subsequent Event [Member] | Mar. 03, 2016 shares
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Class of Stock [Line Items] |
Common Shares | 401,643,203
Stock options | 9,117,224
Total number of shares outstanding | 410,760,427

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