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Supplemental cash flow information (Tables) | 3 Months Ended
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Mar. 31, 2012
Supplemental Cash Flow Information [Abstract] |
Supplemental Cash Flow Information | Supplemental cash flow information
| Three months ended March 31,
| 2012 | 2011
Cash paid for: |  |
Interest | $ | 116 |  | $ | 533 |
Income/withholding taxes (1) | 11,263 |  | 27,239 |
(1) | We paid withholding taxes in Iceland of $9,484 and $26,900 in the three months ended March 31, 2012 and 2011, respectively. Our tax payments in Iceland for withholding taxes, estimated and prepayments of Icelandic income taxes and any associated refunds are denominated in ISK.

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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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