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Contingencies and Environmental Remediation (Details) (USD $) In Millions, unless otherwise specified | 0 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 18, 2014 | Dec. 12, 2013 | Jun. 29, 2014 | Dec. 31, 2013
Litigation contingencies |  |  |  |
Reasonably possible loss in excess of the amount accrued for its legal contingencies |  |  | $ 10.3 |
Trabakoolas et al., v, Watts Water Technologies, Inc., et al. |  |  |  |
Litigation contingencies |  |  |  |
Total settlement amount |  | 23.0 |  |
Possible loss |  | 14.0 |  |
Insurance proceeds |  | 9.0 |  |
Period to take an appeal after written order | 30 days |  |  |
Liability recorded |  |  | 21.3 | 22.6
Liability recorded, current |  |  |  | 12.7
Liability recorded, noncurrent |  |  |  | 9.9
Insurance proceeds, current assets |  |  |  | 9.0
Reduction in liability |  |  | $ 1.3 |
Asbestos Litigation |  |  |  |
Litigation contingencies |  |  |  |
Number of lawsuits the entity is defending in different jurisdictions |  |  | 47 |

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