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v2.4.1.9

Supplemental Cash Flow Information (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Supplemental Cash Flow Elements [Abstract] |  |  |
Payments of interest and commitment fees | $ 74.8 us-gaap_InterestPaid | $ 49.7 us-gaap_InterestPaid | $ 41.5 us-gaap_InterestPaid
Capitalized interest | 13.8 us-gaap_InterestPaidCapitalized | 13.3 us-gaap_InterestPaidCapitalized | 3.9 us-gaap_InterestPaidCapitalized
Cash paid for income taxes | 0.8 us-gaap_IncomeTaxesPaidNet | (0.6)us-gaap_IncomeTaxesPaidNet | (0.3)us-gaap_IncomeTaxesPaidNet
Incurred liabilities for fixed and intangible asset additions | 61.2 us-gaap_CapitalExpendituresIncurredButNotYetPaid | 52.5 us-gaap_CapitalExpendituresIncurredButNotYetPaid | 14.1 us-gaap_CapitalExpendituresIncurredButNotYetPaid
Other Asset Additions Incurred but Not yet Paid | $ 9.4 gel_OtherAssetAdditionsIncurredButNotYetPaid | $ 0.1 gel_OtherAssetAdditionsIncurredButNotYetPaid |

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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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