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Inventories And Deferred Preservation Costs (Narrative) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Inventory [Line Items] |  |
Consignment inventory | $ 9.6 | $ 9.3
Domestic [Member] |  |
Inventory [Line Items] |  |
Consignment inventory percentage | 61.00% | 58.00%
Foreign [Member] |  |
Inventory [Line Items] |  |
Consignment inventory percentage | 39.00% | 42.00%

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- Definition Consignment inventory percentage. + References No definition available. + Details
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- Definition Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.2.Q2 Response) -URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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Namespace Prefix: |
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- Details
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Balance Type: |
Period Type: |