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Contingencies and Environmental Remediation (Details) (USD $) In Millions, unless otherwise specified | 0 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Dec. 12, 2013 | Mar. 30, 2014 | Dec. 31, 2013
Litigation contingencies |  |  |
Reasonably possible loss in excess of the amount accrued for its legal contingencies |  | $ 11.5 |
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 |  |
Liability recorded |  | 21.4 | 22.6
Liability recorded, current |  |  | 12.7
Liability recorded, noncurrent |  |  | 9.9
Insurance proceeds, current assets |  |  | 9.0
Reduction in liability |  | $ 1.2 |
Asbestos Litigation |  |  |
Litigation contingencies |  |  |
Number of lawsuits the entity is defending in different jurisdictions |  | 44 |

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