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Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Apr. 01, 2012 | Dec. 31, 2012
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | $ 200.2 |  | $ 201.9
Accumulated Amortization | (100.9) |  | (97.1)
Net Carrying Amount | 99.3 |  | 104.8
Indefinite-lived intangible assets |  |  |
Indefinite-lived intangible assets | 41.2 |  | 41.8
Intangible assets |  |  |
Gross Carrying Amount | 241.4 |  | 243.7
Total | 140.5 |  | 146.6
Weighted-average remaining life | 9 years |  |
Long-lived assets written-down |  | 0.5 |
Aggregate amortization expense for amortized intangible assets | 3.7 | 4.2 |
Future amortization expense |  |  |
Future amortization expense for remainder of 2013 | 11.1 |  |
Future amortization expense, 2014 | 14.8 |  |
Future amortization expense, 2015 | 14.5 |  |
Future amortization expense, 2016 | 14.0 |  |
Future amortization expense, 2017 | 13.6 |  |
Trade name |  |  |
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | 13.7 |  | 13.9
Accumulated Amortization | (2.2) |  | (1.9)
Net Carrying Amount | 11.5 |  | 12.0
Intangible assets |  |  |
Weighted-average remaining life | 11 years 3 months 18 days |  |
Patents |  |  |
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | 16.4 |  | 16.5
Accumulated Amortization | (11.9) |  | (11.7)
Net Carrying Amount | 4.5 |  | 4.8
Intangible assets |  |  |
Weighted-average remaining life | 6 years 2 months 12 days |  |
Customer relationships |  |  |
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | 133.1 |  | 134.3
Accumulated Amortization | (71.4) |  | (68.7)
Net Carrying Amount | 61.7 |  | 65.6
Intangible assets |  |  |
Weighted-average remaining life | 6 years 3 months 18 days |  |
Technology |  |  |
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | 28.3 |  | 28.5
Accumulated Amortization | (9.8) |  | (9.3)
Net Carrying Amount | 18.5 |  | 19.2
Intangible assets |  |  |
Weighted-average remaining life | 11 years 8 months 12 days |  |
Other |  |  |
Intangible assets subject to amortization |  |  |
Gross Carrying Amount | 8.7 |  | 8.7
Accumulated Amortization | (5.6) |  | (5.5)
Net Carrying Amount | $ 3.1 |  | $ 3.2
Intangible assets |  |  |
Weighted-average remaining life | 41 years 4 months 24 days |  |

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