SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2015 USD ($) segment	Dec. 31, 2015 USD ($) segment item	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Apr. 30, 2015	Sep. 30, 2014 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of business segments | segment	3	3
Interest capitalized		$ 21,300,000	$ 9,900,000	$ 7,000,000
Weighted average rates used to capitalize interest on borrowed funds	4.80%	4.80%	4.90%	4.70%
Trade receivables	$ 199,500,000	$ 199,500,000	$ 255,000,000
Impairments of equity investments		0	0	$ 0
Current income tax expense (benefit)		1,600,000	700,000	700,000
Deferred income tax expense (benefit)		(700,000)	(200,000)	$ 400,000
Unrecognized tax benefits related to uncertain tax positions	$ 0	$ 0
Number of inventory types | item		2
Buckeye Aviation (Memphis) LLC
Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)	100.00%	100.00%
Buckeye Texas
Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)						80.00%
Sabina Pipeline
Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)						63.00%
Buckeye Caribbean
Finite-Lived Intangible Assets [Line Items]
Income tax exemption from real and personal property taxes (as a percent)		90.00%
Income tax exemption from municipal taxes on industrial development income (as a percent)		60.00%
Income tax exemption on excise taxes imposed (as a percent)		100.00%
BPH | Buckeye Aviation (Memphis) LLC
Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)					10.00%
Minimum | Customer contracts
Finite-Lived Intangible Assets [Line Items]
Useful lives		1 year
Minimum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful lives		12 years
Minimum | Buckeye Caribbean
Finite-Lived Intangible Assets [Line Items]
Income tax rate on industrial development income (as a percent)		4.00%
Minimum | St. Lucia in the Caribbean
Finite-Lived Intangible Assets [Line Items]
Tax holidays period		50 years
Maximum | Customer contracts
Finite-Lived Intangible Assets [Line Items]
Useful lives		10 years
Maximum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful lives		20 years
Maximum | Buckeye Caribbean
Finite-Lived Intangible Assets [Line Items]
Income tax rate on industrial development income (as a percent)		7.00%
Credit Facility
Finite-Lived Intangible Assets [Line Items]
Weighted average rates used to capitalize interest on borrowed funds	1.70%	1.70%
Maximum borrowing capacity						$ 1,500,000,000.0
New Accounting Pronouncement, Early Adoption, Effect | Other non-current assets
Finite-Lived Intangible Assets [Line Items]
Debt issuance costs			(20,400,000)
New Accounting Pronouncement, Early Adoption, Effect | Long-term debt
Finite-Lived Intangible Assets [Line Items]
Debt issuance costs			$ 20,400,000