Related-Party Transactions (Details) - USD ($)
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12 Months Ended |
Jul. 09, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Information on related party transaction |
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| Receivables from related parties |
|
$ 3,143,000
|
$ 2,578,000
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|
| GPC |
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| Information on related party transaction |
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| Receivables from related parties |
|
$ 6,000
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|
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| GPC | Terminal Storage Rental and Throughput Agreement [Member] |
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| Related Party Transactions |
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| Equity Method Investment, Ownership Percentage |
|
100.00%
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| Information on related party transaction |
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| Annual consumer price index adjustments included in expenses |
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0
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$ 1,900,000
|
| Expenses incurred from transactions with related parties |
|
|
800,000
|
9,200,000
|
| GPC | GPC Amended and Restated Services Agreement [Member] |
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| Information on related party transaction |
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| Related party amounts recorded as selling, general and administrative expenses |
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$ 0
|
8,000
|
96,000
|
| Notice period to terminate the receipt of services under the agreement |
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90 days
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| AE Holdings | AEH Amended and Restated Services Agreement [Member] |
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| Information on related party transaction |
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| Amount to be received per year |
$ 15,000
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| General partner units |
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| Information on related party transaction |
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| Expenses incurred from transactions with related parties |
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$ 101,600,000
|
109,000,000
|
$ 95,500,000
|
| Receivables from related parties |
|
$ 3,137,000
|
$ 2,578,000
|
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