v3.8.0.1
ACQUISITIONS Narrative 3 (Details)
bbl in Thousands, $ in Thousands
12 Months Ended
Dec. 21, 2016
USD ($)
bbl
Jan. 02, 2015
USD ($)
bbl
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Business Acquisition [Line Items]          
Net purchase price of acquisition     $ 1,461,719 $ 95,657 $ 142,500
Gain associated with the Linden Acquisition     0 $ 0 $ 56,277
Navigator Acquisition [Member]          
Business Acquisition [Line Items]          
Business acquisition, transaction costs     $ 14,079    
Martin Terminal Acquisition [Member]          
Business Acquisition [Line Items]          
Net purchase price of acquisition $ 95,700        
Other payments to acquire businesses, capital expenditure reimbursements included in net purchase price $ 2,100        
Acquired crude storage capacity | bbl 900,000        
Acquired refined product storage capacity | bbl 250,000        
Linden Acquisition [Member]          
Business Acquisition [Line Items]          
Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition, percentage   100.00%      
Acquired storage capacity | bbl   4,300      
Equity method investment, ownership percentage by joint venture partner   50.00%      
Business combination, step acquisition, equity interest in acquiree, percentage   50.00%      
Acquisition date fair value of previously held equity interest   $ 128,000      
Gain associated with the Linden Acquisition   $ 56,300