ACQUISITIONS - Jefferson Terminal Additional Information (Details) - USD ($)
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12 Months Ended |
Aug. 27, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Business Acquisition [Line Items] |
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| Transaction related costs |
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$ 5,683,000
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$ 11,450,000
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$ 260,000
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| Jefferson Terminal |
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| Business Acquisition [Line Items] |
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| Aggregate purchase price |
$ 608,300,000
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| Assumed liabilities |
522,522,000
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| Equity consideration |
38,200,000
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| Percent interest acquired |
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60.00%
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| Remaining non-controlling interest |
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40.00%
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| Loan obtained through acquisition |
100,000,000
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| Decrease in assumed fixed assets |
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$ 947,000
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| Increase of assumed intangible assets |
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128,000
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| Increase of assumed goodwill |
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1,358,000
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| Increase in assumed accounts payable and accrued liabilities |
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390,000
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| Measurement period adjustments for goodwill and estimated liabilities assumed |
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$ 149,000
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| Jefferson Terminal | Retaining Shareholders |
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| Business Acquisition [Line Items] |
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| Remaining non-controlling interest |
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20.00%
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| Jefferson Terminal | Private Equity Fund |
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| Business Acquisition [Line Items] |
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| Remaining non-controlling interest |
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20.00%
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| Jefferson Terminal | Subsidiaries |
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| Business Acquisition [Line Items] |
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| Long-term debt |
$ 97,600,000
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| Goodwill expected to be tax-deductible |
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$ 45,000,000
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