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ACQUISITIONS (Tables)
9 Months Ended
Sep. 30, 2016
Indianola Pipeline  
Business Acquisition [Line Items]  
Schedule of purchase price allocated to tangible and intangible assets acquired and liabilities assumed
The purchase price has been allocated to tangible and intangible assets acquired and liabilities assumed as follows (in thousands):
Inventories
$
1,299

Property, plant and equipment
20,239

Goodwill
4,403

Allocated purchase price
$
25,941

Pennsauken Pipeline  
Business Acquisition [Line Items]  
Schedule of purchase price allocated to tangible and intangible assets acquired and liabilities assumed
The purchase price has been allocated to tangible and intangible assets acquired and liabilities assumed as follows (in thousands):
Property, plant and equipment
$
7,159

Goodwill
500

Environmental liabilities
(2,372
)
Allocated purchase price
$
5,287

ExxonMobil Pipeline  
Business Acquisition [Line Items]  
Schedule of purchase price allocated to tangible and intangible assets acquired and liabilities assumed
The purchase price has been allocated to tangible and intangible assets acquired and liabilities assumed as follows (in thousands):
Property, plant and equipment
$
4,040

Goodwill
8,165

Asset retirement obligation
(4,200
)
Environmental liabilities
(293
)
Allocated purchase price
$
7,712