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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended |  | 6 Months Ended
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Jun. 30, 2014 claims LegalMatter | Dec. 31, 2013 claims LegalMatter | Dec. 31, 2012 Minimum [Member] | Jun. 30, 2014 Minimum [Member] defendant | Dec. 31, 2012 Maximum [Member] | Jun. 30, 2014 Maximum [Member] defendant | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2012 Maximum [Member] | Jun. 30, 2014 Superfund Sites Proceedings [Member] LegalMatter | Jun. 30, 2014 PCB Contamination Proceedings [Member] | Jun. 30, 2014 PCB Contamination Proceedings [Member] | Dec. 31, 2013 PCB Contamination Proceedings [Member] | Jun. 30, 2014 Connecticut Voluntary Corrective Action Program [Member]
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of pending claims (legal matter) | 407 | 362 |  |  |  |  |  |  | 1 |  |  |  |
Estimated total cleanup costs, cost sharing percentage (percent) |  |  |  |  |  |  |  |  | 2.00% |  |  |  |
Loss contingency, minimum possible loss |  |  |  |  |  |  |  |  | $ 18.8 |  |  |  |
Loss contingency, maximum possible loss |  |  |  |  |  |  |  |  | 29.6 |  |  |  |
Estimated total cleanup costs, accrual | 0.4 |  |  |  |  |  |  |  |  |  |  |  |
Accrual for environmental loss contingencies |  |  |  |  |  |  |  |  |  | 0.7 | 0.7 | 1.0 |
Increase (decrease) in accrual |  |  |  |  |  |  |  |  |  | 0.3 |  |  |
PCB contamination of the building, liability recording during the period |  |  |  |  |  |  |  |  |  |  | 0.6 |  | 0.3
Remediation and monitoring costs incurred since inception related to the PCB soil and building contamination |  |  |  |  |  |  |  |  |  |  | 2.3 |  |
Number of defendants (defendant) |  |  |  | 1 |  | 833 |  |  |  |  |  |  |
Description of named defendants | Cases involving us typically name 50-300 defendants |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed | 54 | 115 |  |  |  |  |  |  |  |  |  |  |
Number of claims settled (claim) | 2 | 23 |  |  |  |  |  |  |  |  |  |  |
Claims settlements amount (claim) | 0.3 | 4.8 |  |  |  |  |  |  |  |  |  |  |
Asbestos forecast claim period (years) |  |  | 5 years |  | 10 years | 10 years | 10 years | 10 years |  |  |  |  |
Cost sharing agreement, expiration date | Jan. 25, 2015 |  |  |  |  |  |  |  |  |  |  |  |
Asbestos-related liabilities, estimated liability |  | 59.7 |  |  |  |  |  |  |  |  |  |  |
Asbestos-related liabilities, estimated insurance recovery |  | $ 57.1 |  |  |  |  |  |  |  |  |  |  |

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