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Contingencies (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 30, 2019 | Mar. 31, 2012
Site Contingency [Line Items] |  |
Litigation Settlement, Amount |  | $ 110,000
Environmental Costs Recovered | $ 37,000 |
Huntsville Site [Member] |  |
Site Contingency [Line Items] |  |
Environmental Remediation Expense To Date | 6,300 |
Additional Expected Project Expenditures Low Estimate | 4,100 |
Additional Expected Project Expenditures High Estimate | 10,000 |
Norco Site [Member] | Remediation, Project Management, Regulatory Oversight, and Investigative and Feasability Studies [Member] |  |
Site Contingency [Line Items] |  |
Environmental Remediation Expense To Date | 71,100 |
Additional Expected Project Expenditures Low Estimate | 10,800 |
Additional Expected Project Expenditures High Estimate | $ 21,500 |

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- Definition High-end of the range estimate of the loss exposure for reasonably possible environmental contingencies at an individual site. + References No definition available. + Details
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- Definition Low-end of the range estimate of the loss exposure for reasonably possible environmental contingencies at an individual site. + References No definition available. + Details
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- Definition Environmental Remediation Expense To Date. + References No definition available. + Details
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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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- Definition Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Details
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