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 | ||||||
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 | |||||||