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Income Taxes (Tables) | 9 Months Ended
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Sep. 30, 2013
Income Tax Disclosure [Abstract] |
Open Tax Years for Each Major Jurisdiction | The following table summarizes the open tax years for each major jurisdiction:
Jurisdiction |  | Open Tax Years |
United States Federal |  |  | 2002—2012 |
Canada |  |  | 2004—2012 |
United Kingdom |  |  | 2004—2012 |
Netherlands |  |  | 2007—2012 |

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