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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Supplemental Disclosure of Cash Flow Information | The following table summarizes supplemental cash flow information:
|  | Years ended December 31 |
In thousands |  | 2012 |  |  | 2011 |  |  | 2010 |
Cash paid for interest, net |  | $ | 66,683 |  |  | $ | 54,516 |  |  | $ | 37,083 |
Cash paid for income taxes, net |  |  | 82,235 |  |  |  | 64,389 |  |  |  | 55,991 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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