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Commitments and Contingencies (Tables) | 6 Months Ended
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Jun. 30, 2013
Commitments And Contingencies Disclosure [Abstract] |
Schedule of Expected Settlement Payment | The settlement consists of fines, penalties and disgorgements which are payable over a period of four years commencing 2010. As at June 30, 2013, the expected schedule of payments was as follows:
(in millions) |  | Government Authorities |  |  | Compliance Monitor |  |  | Total |
Fines, penalties and disgorgements |  | $ | 40.2 |  |  | $ | 0.0 |  |  | $ | 40.2 |
Fees and associated expenses |  |  | 0.0 |  |  |  | 3.9 |  |  |  | 3.9 |
Less discounting to fair value |  |  | 0.0 |  |  |  | 0.0 |  |  |  | 0.0 |
|  |  | 40.2 |  |  |  | 3.9 |  |  |  | 44.1 |
Amounts paid |  |  | (36.5 | ) |  |  | (3.0 | ) |  |  | (39.5 | )
Exchange effect |  |  | 0.0 |  |  |  | 0.0 |  |  |  | 0.0 |
|  |  | 3.7 |  |  |  | 0.9 |  |  |  | 4.6 |
Due within one year |  |  | (3.7 | ) |  |  | (0.9 | ) |  |  | (4.6 | )
|  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 0.0 |

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