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Inventories (Schedule Of Major Components Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013
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Inventory Disclosure [Abstract] |  |
Petroleum products | $ 71,353 | $ 71,373
Crude oil | 16,711 | 5,380
Caustic soda | 2,727 | 2,679
NaHS | 8,588 | 5,845
Other | 11 | 53
Total | $ 99,390 | $ 85,330

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