COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands							3 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended
	Oct. 14, 2015 splitter	Oct. 05, 2014 USD ($)	Aug. 05, 2014 USD ($)	Oct. 15, 2012 airport destination origin_point	Sep. 20, 2012 airport	May. 25, 2012 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) berth	Dec. 31, 2014 USD ($) allision	Dec. 31, 2015 USD ($) splitter	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Oct. 16, 2015 airline	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)
Commitments and Contingencies Disclosure
Proceeds from insurance reimbursements										$ 0	$ 737	$ 12,650
Number of condensate splitters | splitter										2
Litigation contingency accrual							$ 2,390	$ 40,000	$ 40,000	$ 2,390	40,000			$ 1,700	$ 13,500
Insurance settlements receivable							0	2,769	2,769	0	2,769
Total rental expense										31,000	26,900	24,900
Rights-of-way payments										7,000	6,500	6,100
Environmental Remediation
Commitments and Contingencies Disclosure
Operating expenses, net of recoveries										6,200	3,000	$ 3,500
Environmental remediation liability							48,000	52,300	52,300	48,000	52,300
Insurance settlements receivable							10,900	13,600	13,600	10,900	13,600
FERC Docket No. OR12-28-000 Airlines Complaint against Buckeye Pipe Line Company, L.P. (BPLC) New York City Jet Fuel Rates
Commitments and Contingencies Disclosure
New York City airports included in legal action | airport					3
Number of airlines protesting the tariff | airline													3
Payments for legal settlements							52,800
FERC Docket No. OR12-28-000 Airlines Complaint against Buckeye Pipe Line Company, L.P. (BPLC) New York City Jet Fuel Rates | Domestic Pipelines & Terminals
Commitments and Contingencies Disclosure
Litigation contingency accrual								40,000	$ 40,000		$ 40,000
Increase in litigation accrual										15,200
FERC Docket No. OR13-3-000 BPLC's Market-Based Rate Application
Commitments and Contingencies Disclosure
New York City airports included in legal action | airport				3
Number of origin points | origin_point				3
Number of destinations | destination				5
Pennsauken Allisions
Commitments and Contingencies Disclosure
Number of allisions | allision									2
Cost of repairs		$ 7,000	$ 8,000					$ 1,400
Insurance recoveries										5,100
Limitation claimed by defendant to damages sought in legal proceedings			$ 19,000
Number of vessel berths | berth								2
Pennsauken Allisions | Tug Owner
Commitments and Contingencies Disclosure
Limitation claimed by defendant to damages sought in legal proceedings		1,000
Pennsauken Allisions | Barge Owner
Commitments and Contingencies Disclosure
Limitation claimed by defendant to damages sought in legal proceedings		$ 5,000
BORCO facility jetty collision damage
Commitments and Contingencies Disclosure
Cost of repairs										23,000
Limitation claimed by defendant to damages sought in legal proceedings						$ 17,000
Insurance deductible						$ 5,000
Proceeds from insurance reimbursements										16,000
Gain recognized during the period							0			0
BORCO facility jetty collision damage | Other non-current assets
Commitments and Contingencies Disclosure
Loss on disposal to assets destroyed, recorded receivable for loss on disposal							6,400			6,400
BORCO facility jetty collision damage | Accrued and other current liabilities
Commitments and Contingencies Disclosure
Deferred gain representing excess proceeds received over loss on disposal and other costs incurred							$ 14,100			$ 14,100
Buckeye Texas Partners Contractor Dispute
Commitments and Contingencies Disclosure
Number of condensate splitters | splitter	2