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Accounting Policies (Details 2) In Millions, unless otherwise specified | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2012 Trade name | Dec. 31, 2012 Technology | Dec. 31, 2012 BRAE USD ($) | Dec. 31, 2011 BRAE USD ($) | Jan. 31, 2012 Tekmar USD ($) | Jan. 31, 2012 Tekmar CAD | Jan. 31, 2012 Tekmar Maximum CAD | Dec. 31, 2012 North America USD ($) | Dec. 31, 2011 North America USD ($) | Dec. 31, 2012 Europe, Middle East and Africa (EMEA) USD ($) | Dec. 31, 2011 Europe, Middle East and Africa (EMEA) USD ($) | Dec. 31, 2012 Asia USD ($) | Dec. 31, 2011 Asia USD ($)
Gross Balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period | $ 511.8 | $ 450.0 |  |  |  |  |  |  |  | $ 213.8 | $ 213.8 | $ 285.3 | $ 228.1 | $ 12.7 | $ 8.1
Acquired During the Period | 11.7 | 77.0 |  |  |  |  |  |  |  | 11.7 |  |  | 72.8 |  | 4.2
Foreign Currency Translation and Other | 8.9 | (15.2) |  |  |  |  |  |  |  | 0.1 |  | 8.6 | (15.6) | 0.2 | 0.4
Balance at the end of the period | 532.4 | 511.8 |  |  |  |  |  |  |  | 225.6 | 213.8 | 293.9 | 285.3 | 12.9 | 12.7
Accumulated Impairment Losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period | (23.2) | (22.0) |  |  |  |  |  |  |  | (23.2) | (22.0) |  |  |  |
Impairment Loss During the Period | (1.0) | (1.2) |  |  | (1.0) | (1.2) |  |  |  | (1.0) | (1.2) |  |  |  |
Balance at the end of the period | (24.2) | (23.2) |  |  |  |  |  |  |  | (24.2) | (23.2) |  |  |  |
Net goodwill | 508.2 | 488.6 |  |  |  |  |  |  |  | 201.4 | 190.6 | 293.9 | 285.3 | 12.9 | 12.7
Pre-tax Goodwill impairment charges | 1.0 | 1.2 |  |  | 1.0 | 1.2 |  |  |  | 1.0 | 1.2 |  |  |  |
Business combination |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial purchase price paid |  |  |  |  |  |  | 17.8 | 18.0 |  |  |  |  |  |  |
Aggregate consideration, net |  |  |  |  |  |  |  |  | 26.2 |  |  |  |  |  |
Purchase price allocated to goodwill |  |  |  |  |  |  | 11.7 |  |  |  |  |  |  |  |
Purchase price allocated to intangible assets |  |  |  |  |  |  | $ 10.1 |  |  |  |  |  |  |  |
Estimated life | 9 years 2 months 12 days |  | 11 years 7 months 6 days | 11 years 9 months 18 days |  |  |  |  |  |  |  |  |  |  |

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