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Commitments and Contingencies (Details) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended
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Mar. 31, 2014 claim LegalMatter | Dec. 31, 2013 claim LegalMatter | Mar. 31, 2014 Minimum [Member] defendant | Dec. 31, 2012 Minimum [Member] | Mar. 31, 2014 Maximum [Member] defendant | Dec. 31, 2012 Maximum [Member] | Dec. 31, 2012 Maximum [Member] | Mar. 31, 2014 Claims that Specify Amount of Damages Sought [Member] LegalMatter | Mar. 31, 2014 Claims that Cite Jurisdictional Amounts [Member] LegalMatter | Mar. 31, 2014 Claims that Specify Amount of Damages Sought not Based on Jurisdictional Requirements [Member] LegalMatter | Mar. 31, 2014 Claims that Specify Amount of Damages Sought not Based on Jurisdictional Requirements [Member] Minimum [Member] defendant | Mar. 31, 2014 Claims that Specify Amount of Damages Sought not Based on Jurisdictional Requirements [Member] Maximum [Member] defendant | Mar. 31, 2014 Claims that Specify Amount of Damages Sought not Based on Jurisdictional Requirements [Member] Legal Claim 1 [Member] LegalMatter | Mar. 31, 2014 Superfund Sites Proceedings [Member] LegalMatter | Mar. 31, 2013 Superfund Sites Proceedings [Member] | Mar. 31, 2014 PCB Contamination Proceedings [Member] | Dec. 31, 2010 PCB Contamination Proceedings [Member] | Mar. 31, 2014 PCB Contamination Proceedings [Member] Building [Member] | Mar. 31, 2014 Connecticut Voluntary Corrective Action Program [Member]
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of pending claims (legal matter) | 392 | 362 |  |  |  |  |  | 72 | 318 | 2 |  |  | 1 | 1 |  |  |  |  |
Estimated total cleanup costs, cost sharing percentage (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Loss contingency, minimum possible loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 18,800,000 |  |  |  |
Loss contingency, maximum possible loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29,600,000 |  |  |  |
Estimated total cleanup costs, accrual | 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrual for environmental loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 | 1,000,000 |  |
Increase (decrease) in accrual |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |
PCB contamination of the building, liability recording during the period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  | 300,000
Remediation and monitoring costs incurred since inception related to the PCB soil and building contamination |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,900,000 |  | 800,000 |
Percentage of pending claims (percent) |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |
Number of defendants (defendant) |  |  | 1 |  | 833 |  |  |  |  |  | 21 | 29 |  |  |  |  |  |  |
Estimated compensatory and punitive awards sought |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  |  |  |
Estimated punitive award sought |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  |  |  |
Description of named defendants | Cases involving us typically name 50-300 defendants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed | 27 | 115 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of claims settled (claim) | 0 | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Claims settlements amount (claim) | 0 | 4,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asbestos forcast claim period (years) |  |  |  | 5 years | 10 years | 10 years | 10 years |  |  |  |  |  |  |  |  |  |  |  |
Cost sharing agreement, expiration date | Jan. 25, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asbestos-related liabilities, estimated liability |  | 59,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asbestos-related liabilities, estimated insurance recovery |  | $ 57,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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