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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Intangible Assets [Abstract] |
Disclosure of Changes in Goodwill and Intangible Assets | Goodwill and intangible assets are comprised of the following:
| 2016
| Cost |  | Accumulated Amortization and Impairment |  | Net Book Value
Goodwill | $ | 78.6 |  |  | $ | 55.4 |  |  | $ | 23.2 |
Intellectual property | $ | 111.3 |  |  | $ | 111.3 |  |  | $ | — |
Other intangible assets | 237.0 |  |  | 221.1 |  |  | 15.9 |
Computer software assets | 284.1 |  |  | 274.5 |  |  | 9.6 |
| $ | 632.4 |  |  | $ | 606.9 |  |  | $ | 25.5 |
| 2017
| Cost |  | Accumulated Amortization and Impairment |  | Net Book Value
Goodwill | $ | 78.6 |  |  | $ | 55.4 |  |  | $ | 23.2 |
Intellectual property | $ | 111.3 |  |  | $ | 111.3 |  |  | $ | — |
Other intangible assets | 237.0 |  |  | 226.6 |  |  | 10.4 |
Computer software assets | 285.3 |  |  | 274.1 |  |  | 11.2 |
| $ | 633.6 |  |  | $ | 612.0 |  |  | $ | 21.6 |
The following table details the changes to the net book value of goodwill and intangible assets for the years indicated:
| Goodwill |  | Other Intangible Assets |  | Computer Software Assets |  | Total
Balance — January 1, 2016 | $ | 19.5 |  |  | $ | 21.9 |  |  | $ | 8.5 |  |  | $ | 49.9 |
Additions | — |  |  | — |  |  | 4.5 |  |  | 4.5 |
Acquisitions through business combinations (note 3) | 3.7 |  |  | — |  |  | 0.1 |  |  | 3.8 |
Amortization | — |  |  | (6.0 | ) |  | (3.4 | ) |  | (9.4 | )
Foreign exchange and other | — |  |  | — |  |  | (0.1 | ) |  | (0.1 | )
Balance — December 31, 2016 | 23.2 |  |  | 15.9 |  |  | 9.6 |  |  | 48.7 |
Additions | — |  |  | — |  |  | 4.9 |  |  | 4.9 |
Amortization | — |  |  | (5.5 | ) |  | (3.4 | ) |  | (8.9 | )
Foreign exchange and other | — |  |  | — |  |  | 0.1 |  |  | 0.1 |
Balance — December 31, 2017 | $ | 23.2 |  |  | $ | 10.4 |  |  | $ | 11.2 |  |  | $ | 44.8 |

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- Definition Intangible Assets [Abstract] + References No definition available. + Details
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- Definition The disclosure of the reconciliation of changes in intangible assets and goodwill. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118&doctype=Standard -URIDate 2017-03-09 + Details
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