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Net Investment In Direct Financing Leases (Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($)
Leases [Abstract] |
Fixed lease payments per year | $ 20.7
Fixed lease interest rate per year | 10.25%
Minimum lease payments received, year one | $ 20.7

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- Definition Annual rate of interest earned under a direct financing lease. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Fixed annual lease payments received under a direct financing lease. + References No definition available. + Details
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Namespace Prefix: | gel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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- Definition Amount of minimum lease payments for sale-leaseback transactions accounted for using the deposit method or as a financing due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6456377&loc=d3e50824-112756 + Details
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