Zenith Energy Logistics Partners (ARCX) 10-Q 13 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 07, 2014	Nov. 07, 2014
		Common Units [Member]	Subordinated Units [Member]
Document And Entity Information [Line Items]	'	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	30-Sep-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q3	'	'
Trading Symbol	'ARCX	'	'
Entity Registrant Name	'Arc Logistics Partners LP	'	'
Entity Central Index Key	'0001583744	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	6,867,950	6,081,081

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$4,559	$4,454
Trade accounts receivable	4,626	4,403
Due from related parties	825	722
Inventories	247	302
Other current assets	1,197	777
Total current assets	11,454	10,658
Property, plant and equipment, net	202,700	201,477
Investment in unconsolidated affiliate	72,888	72,046
Intangible assets, net	34,480	38,307
Goodwill	15,162	15,162
Other assets	1,596	1,716
Total assets	338,280	339,366
Current liabilities:	'	'
Accounts payable	2,395	4,115
Accrued expenses	2,706	2,144
Due to general partner	292	127
Other liabilities	41	25
Total current liabilities	5,434	6,411
Credit facility	108,063	105,563
Other non-current liabilities	2,517	'
Commitments and contingencies	'	'
Partnersb capital:	'	'
General partner interest	0	0
Limited partnersb interest	'	'
Accumulated other comprehensive income	777	492
Total partnersb capital	222,266	227,392
Total liabilities and partnersb capital	338,280	339,366
Common Units [Member]	'	'
Limited partnersb interest	'	'
Limited partners' units	123,078	125,375
Subordinated Units [Member]	'	'
Limited partnersb interest	'	'
Limited partners' units	$98,411	$101,525

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical)	Sep. 30, 2014	Dec. 31, 2013
Common Units [Member]	'	'
Limited partners' units issued	6,867,950	6,867,950
Limited partners' units outstanding	6,867,950	6,867,950
Subordinated Units [Member]	'	'
Limited partners' units issued	6,081,081	6,081,081
Limited partners' units outstanding	6,081,081	6,081,081

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:	'	'	'	'
Third-party customers	$11,329	$10,777	$34,878	$29,460
Related parties	2,361	1,848	6,753	5,869
Revenues	13,690	12,625	41,631	35,329
Expenses:	'	'	'	'
Operating expenses	6,627	5,062	21,101	14,194
Selling, general and administrative	2,743	1,368	6,550	6,161
Selling, general and administrative b affiliate	1,054	624	2,994	1,842
Depreciation	1,860	1,548	5,319	4,154
Amortization	1,367	1,290	4,060	3,425
Total expenses	13,651	9,892	40,024	29,776
Operating income	39	2,733	1,607	5,553
Other income (expense):	'	'	'	'
Gain on bargain purchase of business	'	'	'	11,777
Equity earnings from unconsolidated affiliate	2,482	'	7,406	'
Other income	7	'	10	47
Interest expense	-890	-1,456	-2,730	-4,889
Total other income (expenses), net	1,599	-1,456	4,686	6,935
Income before income taxes	1,638	1,277	6,293	12,488
Income taxes	2	3	54	18
Net Income	1,636	1,274	6,239	12,470
Less: Net income attributable to preferred units	'	600	'	1,546
Net income attributable to partnersb capital	1,636	674	6,239	10,924
Other comprehensive income	725	'	285	'
Comprehensive income attributable to partnersb capital	$2,361	$674	$6,524	$10,924
Common Units [Member]	'	'	'	'
Earnings per limited partner unit:	'	'	'	'
Earnings per limited partner unit, basic and diluted	$0.11	$0.09	$0.45	$1.56
Subordinated Units [Member]	'	'	'	'
Earnings per limited partner unit:	'	'	'	'
Earnings per limited partner unit, basic and diluted	$0.11	$0.09	$0.45	$1.56

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flow from operating activities:	'	'
Net income	$6,239	$12,470
Adjustments to reconcile net income to net cash provided by (used in) operating activities:	'	'
Depreciation	5,319	4,154
Amortization	4,060	3,425
Gain on bargain purchase of business	'	-11,777
Equity earnings from unconsolidated affiliate, net of distributions	-108	'
Amortization of deferred financing costs	371	1,639
Unit-based compensation	1,426	'
Changes in operating assets and liabilities:	'	'
Trade accounts receivable	-223	-2,665
Due from related parties	-104	231
Inventories	55	-13
Other current assets	-420	-456
Other assets	'	-1,206
Accounts payable	-2,159	3,137
Accrued expenses	562	1,012
Due to general partner	165	4,556
Other liabilities	2,533	-20
Net cash provided by operating activities	17,716	14,487
Cash flows from investing activities:	'	'
Capital expenditures	-6,103	-10,540
Investment in unconsolidated affiliate	-681	'
Net cash paid for acquisitions	'	-82,000
Net cash used in investing activities	-6,784	-92,540
Cash flows from financing activities:	'	'
Distributions	-12,870	-946
Deferred financing costs	-251	-3,519
Repayments to credit facility	-25,000	-35,938
Proceeds from credit facility	27,500	118,000
Distribution equivalent rights paid on unissued units	-206	'
Net cash (used in) provided by financing activities	-10,827	77,597
Net increase (decrease) in cash and cash equivalents	105	-456
Cash and cash equivalents, beginning of period	4,454	1,429
Cash and cash equivalents, end of period	4,559	973
Supplemental disclosure of cash flow information:	'	'
Cash paid for interest	2,534	3,497
Cash paid for income taxes	54	18
Non-cash investing and financing activities:	'	'
Issuance of preferred units	'	30,000
Deemed distributions to preferred units	'	1,546
Increase (Decrease) in purchases of property plant and equipment in accounts payable and accrued expenses	$439	($202)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Partners' Capital (USD $)	Total	Limited Partner Common Interest [Member]	Limited Partner Subordinated Interest [Member]	Accumulated Other Comprehensive Income [Member]
In Thousands
Partners' capital, beginning balance at Dec. 31, 2013	$227,392	$125,375	$101,525	$492
Net income	6,239	3,309	2,930	'
Other comprehensive income	285	'	'	285
Unit-based compensation	1,426	1,426	'	'
Distribution equivalent rights paid on unissued units	-206	-206	'	'
Distributions	-12,870	-6,826	-6,044	'
Partners' capital, ending balance at Sep. 30, 2014	$222,266	$123,078	$98,411	$777

Organization_and_Presentation

Organization and Presentation	9 Months Ended
	Sep. 30, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Organization and Presentation	'
	Note 1—Organization and Presentation
	Defined Terms
	Unless the context clearly indicates otherwise, references in these unaudited condensed consolidated financial statements (“interim statements”) to “Arc Terminals” or the “Partnership” when used for periods prior to November 12, 2013, the closing date of the initial public offering of Arc Logistics Partners LP (the “IPO”), refer to Arc Terminals LP and its subsidiaries, which were contributed to Arc Logistics Partners LP in connection with the IPO, and references to “Arc Logistics” or the “Partnership” when used for periods on or after the closing date of the IPO refer to Arc Logistics Partners LP and its subsidiaries. Unless the context clearly indicates otherwise, references to our “General Partner” for periods prior to the closing date of the IPO refer to Arc Terminals GP LLC which owned the general partner interest in Arc Terminals, and references to our “General Partner” for periods on or after the closing date of the IPO refer to Arc Logistics GP LLC, the general partner of Arc Logistics. References to “Sponsor” or “Lightfoot” refer to Lightfoot Capital Partners, LP and its general partner, Lightfoot Capital Partners GP LLC. References to “GCAC” refer to Gulf Coast Asphalt Company, L.L.C., which contributed its preferred units in Arc Terminals to the Partnership upon the consummation of the IPO. References to “Center Oil” refer to GP&W, Inc., d.b.a. Center Oil, and affiliates, including Center Terminal Company-Cleveland, which contributed its limited partner interests in Arc Terminals to the Partnership upon the consummation of the IPO. References to “Gulf LNG Holdings” refer to Gulf LNG Holdings Group, LLC and its subsidiaries, which own a liquefied natural gas regasification and storage facility in Pascagoula, MS, which is referred to herein as the “LNG Facility.” The Partnership used a portion of the proceeds from the IPO to acquire a 10.3% limited liability company interest in Gulf LNG Holdings, which is referred to herein as the “LNG Interest.”
	Organization and Initial Public Offering
	The Partnership is a fee-based, growth-oriented Delaware limited partnership formed by Lightfoot in 2007 to own, operate, develop and acquire a diversified portfolio of complementary energy logistics assets. The Partnership is principally engaged in the terminalling, storage, throughput and transloading of crude oil and petroleum products. The Partnership is focused on growing its business through the optimization, organic development and acquisition of terminalling, storage, rail, pipeline and other energy logistics assets that generate stable cash flows.
	In November 2013, the Partnership completed its IPO by selling 6,786,869 common units (which includes 786,869 common units issued pursuant to the exercise of the underwriters’ over-allotment option) representing limited partner interests in the Partnership at a price to the public of $19.00 per common unit. In connection with the IPO, the Partnership amended and restated the Terminal Credit Facility (as defined below, see “Note 7—Debt”).
	The $120.2 million of net proceeds from the IPO (including the underwriters’ option to purchase additional common units and after deducting the underwriting discount and structuring fee) were used to: (i) fund the purchase of the LNG Interest from an affiliate of GE EFS for approximately $72.7 million; (ii) make a cash distribution to GCAC as partial consideration for the contribution of its preferred units in Arc Terminals to the Partnership of approximately $29.8 million; (iii) repay intercompany payables owed to the Sponsor of approximately $6.6 million; and (iv) reduce amounts outstanding under the Partnership’s Credit Facility (as defined below, see “Note 7—Debt”) by $6.0 million. The remaining funds were used for general partnership purposes, including the payment of transaction expenses related to the IPO and the Credit Facility.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 2—Summary of Significant Accounting Policies
	The Partnership has provided a discussion of significant accounting policies in its Annual Report on Form 10-K for the year ended December 31, 2013. Certain items from that discussion are repeated or updated below as necessary to assist in the understanding of these interim statements.
	Basis of Presentation
	The accompanying interim statements of the Partnership have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X issued by the SEC. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, and disclosures necessary for a fair presentation of these interim statements have been included. The results reported in these interim statements are not necessarily indicative of the results that may be reported for the entire year or for any other period. These interim statements should be read in conjunction with the Partnership’s consolidated financial statements for the year ended December 31, 2013, which are included in the Partnership’s Annual Report on Form 10-K, as filed with the SEC. The year-end balance sheet data was derived from the audited financial statements, but does not include all disclosures required by GAAP.
	The Partnership has disclosed consolidated figures of the Partnership as if the Partnership had operated since the inception of Arc Terminals. The contribution of Arc Terminals to Arc Logistics in connection with the IPO was not considered a business combination accounted for under the purchase method as it was a transfer of assets under common control and, accordingly, balances have been transferred at their historical cost. The condensed consolidated financial statements for the periods prior to the contribution on November 12, 2013 have been prepared using Arc Terminals’ historical basis in the assets and liabilities and include all revenues, costs, assets and liabilities attributed to Arc Terminals.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. The most significant estimates relate to the valuation of acquired businesses, goodwill and intangible assets and the useful lives of intangible assets and property, plant and equipment. Actual results could differ from those estimates.
	Goodwill
	Goodwill represents the excess of consideration paid over the fair value of net assets acquired in a business combination. Goodwill is not amortized but instead is assessed for impairment at least annually or when facts and circumstances warrant. The Partnership determined at December 31, 2013 that there were no impairment charges and subsequent to that date no event indicating an impairment has occurred.
	A summary of the changes in the carrying amount of goodwill is as follows (in thousands):
		As of
		September 30,		December 31,
		2014		2013
	Beginning Balance	$	15,162	$	6,730
	Goodwill acquired		-		8,432
	Impairment		-		-
	Ending Balance	$	15,162	$	15,162
	Deferred Rent
	The Lease Agreement (as defined in “Note 12—Related Party Transactions—Other Transactions with Related Persons—Operating Lease Agreement” below) contains certain rent escalation clauses, contingent rent provisions and lease termination payments. The Partnership recognizes rent expense for operating leases on a straight-line basis over the term of the lease, taking into consideration the items noted above. Contingent rental payments are generally recognized as rent expense as incurred. The deferred rent resulting from the recognition of rent expense on a straight-line basis related to the Lease Agreement is included within “Other non-current liabilities” in the accompanying unaudited condensed consolidated balance sheet at September 30, 2014.
	Revenue Recognition
	Revenues from leased tank storage and delivery services are recognized as the services are performed, evidence of a contractual arrangement exists and collectability is reasonably assured. Revenues also include the sale of excess products and additives which are mixed with customer-owned liquid products. Revenues for the sale of excess products and additives are recognized when title and risk of loss passes to the customer.
	Fair Value of Financial Instruments
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at a specified measurement date. Fair value measurements are derived using inputs and assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. GAAP establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This three-tier hierarchy classifies fair value amounts recognized or disclosed in the condensed consolidated financial statements based on the observability of inputs used to estimate such fair values. The classification within the hierarchy of a financial asset or liability is determined based on the lowest level input that is significant to the fair value measurement. The hierarchy considers fair value amounts based on observable inputs (Level 1 and 2) to be more reliable and predictable than those based primarily on unobservable inputs (Level 3). At each balance sheet reporting date, the Partnership categorizes its financial assets and liabilities using this hierarchy.
	The amounts reported in the balance sheet for cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value because of the short-term maturities of these instruments (Level 1). Since the Credit Facility has a market rate of interest its carrying amount approximated fair value (Level 2).
	The Partnership believes that its valuation methods are appropriate and consistent with the values that would be determined by other market participants. However, the use of different methodologies or assumptions to determine fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.
	Unit-Based Compensation
	The Partnership recognizes all unit-based compensation to directors, officers, employees and other service providers in the consolidated financial statements based on the fair value of the awards.  Fair value for unit-based awards classified as equity awards is determined on the grant date of the award and this value is recognized as compensation expense ratably over the requisite service or performance period of the equity award. Fair value for equity awards is calculated at the closing price of the common units on the grant date. Fair value for unit-based awards classified as liability awards is calculated at the closing price of the common units on the grant date and is remeasured at each reporting period until the award is settled. Compensation expense related to unit-based awards is included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income.
	For awards with performance conditions, the expense is accrued over the service period only if the performance condition is considered to be probable of occurring. When awards with performance conditions that were previously considered improbable become probable, the Partnership incurs additional expense in the period that the probability assessment changes (see “Note 10—Equity Plans”).
	Net Income Per Unit
	The Partnership uses the two-class method in the computation of earnings per unit since there is more than one participating class of securities. Earnings per common and subordinated unit are determined by dividing net income allocated to the common units and subordinated units, respectively, after deducting the amount allocated to the phantom and preferred unitholders, if any, by the weighted average number of outstanding common and subordinated units, respectively, during the period. The overall computation, presentation and disclosure of the Partnership’s limited partners’ net income per unit are made in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 260 “Earnings per Share.”
	Segment Reporting
	The Partnership derives revenue from operating its terminal and transloading facilities.  These facilities have been aggregated into one reportable segment because the facilities have similar long-term economic characteristics, products and types of customers.
	Recently Issued Accounting Pronouncements
	In May 2014, the FASB issued updated guidance on the reporting and disclosure of revenue recognition. The update requires that an entity recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires new qualitative and quantitative disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, information about contract balances and performance obligations, and assets recognized from costs incurred to obtain or fulfill a contract. The Partnership is currently evaluating the potential impact of this authoritative guidance on its financial condition, results of operations, cash flows and related disclosures.  This guidance will be effective for the Partnership beginning in the first quarter of 2017.
	In June 2014, the FASB issued new guidance related to stock compensation.  The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition.  As such, the performance target should not be reflected in estimating the grant date fair value of the award.  This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered.  The Partnership does not expect this requirement to have a significant impact on its financial condition, results of operations, cash flows and related disclosures.  This guidance will be effective for the Partnership beginning in the first quarter of 2016, with early adoption optional.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Acquisitions	'
	Note 3—Acquisitions
	The following acquisitions were accounted for under the acquisition method of accounting whereby management utilized the services of third-party valuation consultants, along with estimates and assumptions provided by management, to estimate the fair value of the net assets acquired. The third-party valuation consultants utilized several appraisal methodologies including income, market and cost approaches to estimate the fair value of the identifiable assets acquired.
	2013 Acquisitions
	Gulf Coast Asphalt Company, L.L.C. Asset Acquisition
	In February 2013, the Partnership acquired substantially all of the Mobile, AL and Saraland, AL operating assets (the “GCAC Asset Acquisition”) related to the terminalling business of GCAC for approximately $85.0 million (“GCAC Purchase Price”) consisting of approximately $25.0 million in cash, $30.0 million in new preferred units (see “Note 8—Preferred Units”) in the Partnership and $30.0 million of assumed debt which was simultaneously extinguished at the acquisition closing by the Partnership.
	The transaction was accounted for as a business combination in accordance with ASC Topic 805, “Business Combinations” (“ASC 805”). The GCAC Purchase Price exceeded the approximately $76.6 million fair value of the identifiable assets acquired and accordingly, the Partnership recognized goodwill of approximately $8.4 million. The Partnership believes the primary items that generated goodwill are both the value of the synergies created between the acquired assets and its existing assets, and its expected ability to grow the business acquired by leveraging its existing customer relationships. Furthermore, the Partnership expects that the entire amount of its recorded goodwill will be deductible for tax purposes. Transaction costs incurred in connection with the acquisition, consisting primarily of legal and other professional fees, totaled approximately $1.9 million and were expensed as incurred in accordance with ASC 805 and included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income. GCAC is also able to receive up to an additional $5.0 million in cash earnout payments based upon the throughput activity of one customer through December 31, 2016. As of September 30, 2014, no additional amounts have been paid or are owed to GCAC.
	The following table summarizes the consideration paid and the amounts of assets acquired at the acquisition date (in thousands):
	Consideration:
	Cash paid to seller	$	25,000
	Debt assumed		30,000
	Preferred units issued		30,000
	Total consideration	$	85,000
	Allocation of purchase price:
	Property and equipment	$	39,242
	Intangible assets		37,326
	Goodwill		8,432
	Net assets acquired	$	85,000
	The following unaudited pro forma financial results for the nine months ended September 30, 2013 are presented for comparative purposes only and assume the GCAC acquisition had occurred on January 1, 2013. The effects of the acquisition of GCAC are included in the accompanying unaudited condensed consolidated statement of operations and comprehensive income for the three and nine months ended September 30, 2014, as well as for the three months ended September 30, 2013. The unaudited pro forma results reflect certain adjustments to the acquisition, such as increased depreciation and amortization expense on the fair value of the assets acquired. The unaudited pro forma financial results may not be indicative of the results that would have occurred had the acquisition been completed at the beginning of the period presented, nor are they indicative of future results of operations (in thousands, except per unit amounts):
			Nine Months Ended
			30-Sep-13
			(unaudited proforma)
	Total revenues		$	36,930
	Operating income			9,017
	Net Income		$	15,255
	Less: Net income attributable to preferred units		$	1,800
	Net income attributable to partners’ capital		$	13,455
	Earnings per unit - Basic:
	Common and Subordinated		$	2.48
	Earnings per unit - Diluted:
	Common and Subordinated		$	2.04
	Since the acquisition date in February 2013 through September 30, 2013, the acquired GCAC assets earned approximately $13.2 million in revenue and $7.1 million of operating income.
	Motiva Enterprises LLC Asset Acquisition
	In February 2013, the Partnership acquired substantially all of the operating assets related to the Brooklyn, NY terminal (the “Brooklyn Terminal”) from Motiva Enterprises LLC (“Motiva”) for approximately $27.0 million (“Brooklyn Purchase Price”) in cash.
	The transaction was accounted for as a business combination in accordance with ASC 805. The fair value of the identifiable assets acquired of approximately $38.8 million exceeded the Brooklyn Purchase Price. Accordingly, the acquisition has been accounted for as a bargain purchase and, as a result, the Partnership recognized a gain of approximately $11.8 million associated with the acquisition. The gain is included in the line item “Gain on bargain purchase of business” in the accompanying condensed consolidated statement of operations and comprehensive income. Transaction costs incurred in connection with the acquisition, consisting primarily of legal and other professional fees, totaled approximately $1.5 million and were expensed as incurred in accordance with ASC 805 and included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income.
	The following table summarizes the consideration paid and the amount of assets acquired at the acquisition date (in thousands):
	Consideration:
	Cash paid to seller	$	27,000
	Allocation of purchase price:
	Property and equipment	$	36,749
	Inventory		19
	Intangible assets		2,009
	Bargain purchase gain		(11,777	)
	Net assets acquired	$	27,000
	Since the acquisition date in February 2013 through September 30, 2013, the Brooklyn Terminal earned approximately $4.1 million in revenue and $2.4 million of operating income.
	The unaudited pro forma results related to the Motiva acquisition have been excluded as the nature of the revenue-producing activities previously associated with the Brooklyn Terminal have changed substantially post-acquisition from intercompany revenue to third-party generated revenue. In addition, historical financial information for the Brooklyn Terminal prior to the acquisition is not indicative of how the Brooklyn Terminal is being operated since the Partnership’s acquisition and would be of no comparative value in understanding the future operations of the Brooklyn Terminal.

Investment_in_Unconsolidated_A

Investment in Unconsolidated Affiliate	9 Months Ended
	Sep. 30, 2014
Equity Method Investments And Joint Ventures [Abstract]	'
Investment in Unconsolidated Affiliate	'
	Note 4—Investment in Unconsolidated Affiliate
	The Partnership accounts for investments in limited liability companies under the equity method of accounting unless the Partnership’s interest is deemed to be so minor that it may have virtually no influence over operating and financial policies. “Investment in unconsolidated affiliate” consisted of the LNG Interest and its balances as of September 30, 2014 and December 31, 2013 are represented below (in thousands):
	Balance at December 31, 2013	$	72,046
	Equity earnings		7,406
	Contributions		681
	Distributions		(7,298	)
	Amortization of premium		(232	)
	Other comprehensive income		285
	Balance at September 30, 2014	$	72,888
	Gulf LNG Holdings Acquisition
	In connection with the IPO, the Partnership purchased the LNG Interest from an affiliate of GE EFS for approximately $72.7 million. The carrying value of the LNG Interest on the date of acquisition was approximately $64.1 million with a purchase price of approximately $72.7 million and the excess paid over the carrying value of approximately $8.6 million. This excess can be attributed to the underlying long lived assets of Gulf LNG Holdings and is therefore being amortized using the straight line method over the remaining useful lives of the respective asset, which is 28 years. The estimated aggregate amortization of this premium for its remaining useful life from September 30, 2014 is as follows (in thousands):
		Total
	2014	$	75
	2015		309
	2016		309
	2017		309
	2018		309
	Thereafter		7,062
		$	8,373
	Summarized financial information for the Gulf LNG Holdings is reported below (in thousands):
		September 30,			December 31,
		2014			2013
	Balance sheets
	Current assets	$	11,506		$	8,694
	Noncurrent assets		931,137			952,630
	Total assets	$	942,643		$	961,324
	Current liabilities	$	83,501		$	81,173
	Long-term liabilities		739,341			773,115
	Member’s equity		119,801			107,036
	Total liabilities and member’s equity	$	942,643		$	961,324
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014			2013		2014		2013
	Income statements
	Revenues	$	46,561		$	46,522	$	139,682	$	139,567
	Total operating costs and expenses		14,198			13,434		42,629		42,160
	Operating income		32,363			33,088		97,053		97,407
	Net income	$	24,097		$	24,370	$	71,900	$	71,027

Property_Plant_and_Equipment

Property, Plant and Equipment	9 Months Ended
	Sep. 30, 2014
Property Plant And Equipment [Abstract]	'
Property, Plant and Equipment	'
	Note 5—Property, Plant and Equipment
	The Partnership’s property, plant and equipment consisted of (in thousands):
		As of
		September 30,			December 31,
		2014			2013
	Land	$	51,175		$	51,175
	Buildings and site improvements		36,438			34,660
	Tanks and trim		94,666			92,337
	Machinery and equipment		34,220			32,819
	Office furniture and equipment		2,474			2,334
	Construction in progress		5,897			5,003
			224,870			218,328
	Less:  Accumulated depreciation		(22,170	)		(16,851	)
	Property, plant and equipment, net	$	202,700		$	201,477

Intangible_Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Intangible Assets	'
	Note 6—Intangible Assets
	The Partnership’s intangible assets consisted of (in thousands):
		Estimated	As of
		Useful Lives	September 30,			December 31,
		in Years	2014			2013
	Customer relationships	21	$	4,785		$	4,785
	Acquired contracts	10-Feb		39,900			39,900
	Noncompete agreements	3-Feb		741			741
				45,426			45,426
	Less:  Accumulated amortization			(10,946	)		(7,119	)
	Intangible assets, net		$	34,480		$	38,307
	The Partnership’s intangible assets are amortized on a straight-line basis over the expected life of each intangible asset. The estimated future amortization expense is approximately $1.3 million for the remainder of 2014, $4.3 million in 2015, $3.9 million in 2016, $3.9 million in 2017, $3.9 million in 2018 and $17.2 million thereafter.

Debt

Debt	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Debt	'
	Note 7—Debt
	Credit Facility
	In January 2012, the Partnership entered into a $40.0 million credit facility (the “Terminal Credit Facility”). On November 12, 2013, concurrent with the closing of the IPO, the Partnership amended and restated the Terminal Credit Facility (the “Credit Facility”) with a syndicate of lenders, under which Arc Terminals Holdings LLC, a wholly owned subsidiary of the Partnership (“Arc Terminals Holdings”) is the borrower. The Credit Facility has up to $175.0 million of borrowing capacity. As of September 30, 2014, the Partnership had borrowings of $108.1 million under the Credit Facility at an interest rate of 2.66%. Based on the restrictions under the total leverage ratio covenant, as of September 30, 2014, the Partnership had $29.1 million of available capacity under the Credit Facility.
	The Credit Facility is available to refinance existing indebtedness, to fund working capital and to finance capital expenditures and other permitted payments and for other lawful corporate purposes and allows the Partnership to request that the maximum amount of the Credit Facility be increased by up to an aggregate of $100.0 million, subject to receiving increased commitments from lenders or commitments from other financial institutions. The Credit Facility is available for revolving loans, including a sublimit of $5.0 million for swing line loans and a sublimit of $10.0 million for letters of credit. The Partnership’s obligations under the Credit Facility are secured by a first priority lien on substantially all of the Partnership’s material assets (other than the LNG Interest). The Partnership and each of the Partnership’s existing subsidiaries (other than the borrower) guarantee, and each of the Partnership’s future restricted subsidiaries will also guarantee, the Credit Facility. The Credit Facility matures on November 12, 2018.
	Loans under the Credit Facility bear interest at a floating rate based upon the leverage ratio, equal to, at the Partnership’s option, either (a) a base rate plus a range from 100 to 200 basis points per annum or (b) a LIBOR rate, plus a range of 200 to 300 basis points. The base rate is established as the highest of (i) the rate which SunTrust Bank announces, from time to time, as its prime lending rate, (ii) the daily one-month LIBOR plus 100 basis points per annum and (iii) the federal funds rate plus 0.50% per annum. The unused portion of the Credit Facility is subject to a commitment fee calculated based upon the Partnership’s leverage ratio ranging from 0.375% to 0.50% per annum. Upon any event of default, the interest rate will, upon the request of the lenders holding a majority of the commitments, be increased by 2.0% on overdue amounts per annum for the period during which the event of default exists.
	The Credit Facility contains certain customary representations and warranties, affirmative covenants, negative covenants and events of default. As of September 30, 2014, the Partnership was in compliance with such covenants. The negative covenants include restrictions on the Partnership’s ability to incur additional indebtedness, acquire and sell assets, create liens, enter into certain lease agreements, make investments and make distributions.
	The Credit Facility requires the Partnership to maintain a leverage ratio of not more than 4.50 to 1.00, which may increase to up to 5.00 to 1.00 during specified periods following a permitted acquisition or issuance of over $200.0 million of senior notes, and a minimum interest coverage ratio of not less than 2.50 to 1.00. If the Partnership issues over $200.0 million of senior notes, the Partnership will be subject to an additional financial covenant pursuant to which the Partnership’s secured leverage ratio must not be more than 3.50 to 1.00. The Credit Facility places certain restrictions on the issuance of senior notes.
	If an event of default occurs, the agent would be entitled to take various actions, including the acceleration of amounts due under the Credit Facility, termination of the commitments under the Credit Facility and all remedial actions available to a secured creditor. The events of default include customary events for a financing agreement of this type, including, without limitation, payment defaults, material inaccuracies of representations and warranties, defaults in the performance of affirmative or negative covenants (including financial covenants), bankruptcy or related defaults, defaults relating to judgments, nonpayment of other material indebtedness and the occurrence of a change in control. In connection with the Credit Facility, the Partnership and the Partnership’s subsidiaries have entered into certain customary ancillary agreements and arrangements, which, among other things, provide that the indebtedness, obligations and liabilities arising under or in connection with the facility are unconditionally guaranteed by the Partnership and each of the Partnership’s existing subsidiaries (other than the borrower) and each of the Partnership’s future restricted subsidiaries.
	In January 2014, Arc Terminals Holdings, as borrower, and Arc Logistics and its other subsidiaries, as guarantors, entered into the first amendment (the “First Amendment”) to the Credit Facility agreement. The First Amendment principally modified certain provisions of the Credit Facility agreement to allow Arc Terminals Holdings to enter into the Lease Agreement relating to the use of petroleum products terminals and pipeline infrastructure located in Portland, Oregon (the “Portland Terminal”).
	Terminal Credit Facility
	The Terminal Credit Facility bore interest based upon LIBOR plus an applicable margin. The applicable margin was based on the leverage ratio as defined by the Terminal Credit Facility agreement, calculated at the beginning of each interest period. At the time of closing, the Partnership borrowed $22.0 million on the Terminal Credit Facility, applying $20.0 million to extinguish the Partnership’s prior revolving line of credit and the balance was used to pay transaction fees and fund operations. The Terminal Credit Facility agreement required the Partnership to maintain a leverage ratio of not more than 3.75 to 1.00, which decreased to 3.50 to 1.00 on or after March 31, 2013 and a minimum fixed charge ratio of not less than 1.25 to 1.00.
	In February 2013, the Partnership amended the Terminal Credit Facility to include a $65.0 million term loan and a $65.0 million revolving line of credit. The amended Terminal Credit Facility had an initial three year term and bore interest based upon LIBOR plus an applicable margin. The applicable margin was based on the leverage ratio as defined in the Terminal Credit Facility agreement, calculated at the beginning of each interest period. At the time of the closing, the Partnership borrowed an additional $55.0 million which was used to satisfy the cash portion of the GCAC Purchase Price and to extinguish the debt acquired as a part of the GCAC Purchase Price. Also in February 2013, the Partnership borrowed an additional $27.0 million to complete the Motiva acquisition. The amended Terminal Credit Facility agreement required the Partnership to maintain an initial leverage ratio of not more than 5.00 to 1.00, which decreased to 4.00 to 1.00 by December 31, 2013 and a minimum fixed charge ratio of not less than 1.25 to 1.00.

Preferred_Units

Preferred Units	9 Months Ended
	Sep. 30, 2014
Preferred Units Preferred Partners Capital Accounts [Abstract]	'
Preferred Units	'
	Note 8—Preferred Units
	In February 2013, the Partnership, as a part of the GCAC Purchase Price (see “Note 3—Acquisitions”), issued 1,500,000 preferred units to GCAC with a value of $30.0 million. The preferred units ranked senior in liquidation preference and distributions to all existing and outstanding common and subordinated units. The preferred units were entitled to 8% annual distributions, paid 45 days following each calendar quarter, assuming the Partnership remained in compliance with all related covenants in the Terminal Credit Facility. If for any reason the Partnership were to be unable to pay the quarterly distributions on time to the preferred unitholders, the distribution amount would have compounded at an 8% annual interest rate until paid. At the time of the IPO, the Partnership issued 779 common units and 58,426 subordinated units and made a cash distribution of approximately $29.0 million to GCAC for the contribution of its preferred units in Arc Terminals to the Partnership. Prior to the IPO, the Partnership recorded the preferred units as mezzanine equity in accordance with ASC Topic 480, “Distinguishing Liabilities from Equity” due to the redeemable nature, at the option of the holders, of the preferred units at a fixed and determinable price based upon certain redemption events which were outside the control of the Partnership. For the three and nine months ended September 30, 2013, the Partnership paid $0.6 million and $0.9 million in cash distributions to the preferred unitholders.

Partners_Capital_and_Distribut

Partners' Capital and Distributions	9 Months Ended
	Sep. 30, 2014
Partners Capital Account Distributions [Abstract]	'
Partners' Capital and Distributions	'
	Note 9—Partners’ Capital and Distributions
	Cash Distributions
	The table below summarizes the quarterly distributions related to the Partnership’s quarterly financial results (in thousands, except per unit data):
			Total Quarterly			Total Cash			Date of	Unitholders
	Quarter Ended		Distribution Per Unit			Distribution			Distribution	Record Date
	30-Sep-14		$	0.41		$	5,309		November 17, 2014 (1)	November 10, 2014 (1)
	30-Jun-14		$	0.4		$	5,180		18-Aug-14	11-Aug-14
	31-Mar-14		$	0.3875		$	5,018		16-May-14	9-May-14
	31-Dec-13		$	0.2064		$	2,673		February 18, 2014 (2)	February 10, 2014 (2)
	(1) Expected dates as of the filing date.
	(2) Initial pro rata cash distribution, prorated for the period from November 13, 2013 to December 31, 2013.
	Cash Distribution Policy
	The partnership agreement provides that the General Partner will make a determination no less frequently than each quarter as to whether to make a distribution, but the partnership agreement does not require the Partnership to pay distributions at any time or in any amount. Instead, the board of directors of the General Partner has adopted a cash distribution policy that sets forth the General Partner’s intention with respect to the distributions to be made to unitholders. Pursuant to the cash distribution policy, within 60 days after the end of each quarter, the Partnership expects to distribute to the holders of common and subordinated units on a quarterly basis at least the minimum quarterly distribution of $0.3875 per unit, or $1.55 per unit on an annualized basis, to the extent the Partnership has sufficient cash after establishment of cash reserves and payment of fees and expenses, including payments to the General Partner and its affiliates.
	The board of directors of the General Partner may change the foregoing distribution policy at any time and from time to time, and even if the cash distribution policy is not modified or revoked, the amount of distributions paid under the policy and the decision to make any distribution is determined solely by the General Partner. As a result, there is no guarantee that the Partnership will pay the minimum quarterly distribution, or any distribution, on the units in any quarter. However, the partnership agreement contains provisions intended to motivate the General Partner to make steady, increasing and sustainable distributions over time.
	The partnership agreement generally provides that the Partnership will distribute cash each quarter in the following manner:
	—	first, to the holders of common units, until each common unit has received the minimum quarterly distribution of $0.3875 plus any arrearages from prior quarters;
	—	second, to the holders of subordinated units, until each subordinated unit has received the minimum quarterly distribution of $0.3875; and
	—	third, to all unitholders pro rata, until each has received a distribution of $0.4456.
	If cash distributions to the Partnership’s unitholders exceed $0.4456 per unit in any quarter, the Partnership’s unitholders and the General Partner, as the initial holder of the incentive distribution rights, will receive distributions according to the following percentage allocations:
	Total Quarterly		Marginal Percentage
	Distribution Per Unit		Interest
	Target Amount		in Distributions
			Unitholders			General
						Partner
	above $0.3875 up to $0.4456			100	%		0	%
	above $0.4456 up to $0.4844			85	%		15	%
	above $0.4844 up to $0.5813			75	%		25	%
	above $0.5813			50	%		50	%
	The Partnership refers to additional increasing distributions to the General Partner as “incentive distributions.”
	The principal difference between the Partnership’s common units and subordinated units is that in any quarter during the subordination period, holders of the subordinated units are not entitled to receive any distributions from operating surplus until the common units have received the minimum quarterly distribution for such quarter plus any arrearages in the payment of the minimum quarterly distribution from prior quarters. Subordinated units will not accrue arrearages.
	The subordination period will end on the first business day after the Partnership has earned and paid at least (1) $1.55 (the minimum quarterly distribution on an annualized basis) on each outstanding common unit and subordinated unit for each of three consecutive, non-overlapping four quarter periods ending on or after September 30, 2016 or (2) $2.325 (150.0% of the annualized minimum quarterly distribution) on each outstanding common unit and subordinated unit and the related distribution on the incentive distribution rights for a four-quarter period ending immediately preceding such date, in each case provided there are no arrearages on the Partnership’s common units at that time.
	The subordination period will also end upon the removal of the General Partner other than for cause if no subordinated units or common units held by holder(s) of subordinated units or their affiliates are voted in favor of that removal. When the subordination period ends, all subordinated units will convert into common units on a one-for-one basis, and all common units thereafter will no longer be entitled to arrearages.

Equity_Plans

Equity Plans	9 Months Ended
	Sep. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments	'
	Note 10—Equity Plans
	2013 Long-Term Incentive Plan
	The Board of Directors of the General Partner (the “Board”) approved and adopted the Arc Logistics Long-Term Incentive Plan (the “2013 Plan”) in November 2013.  In July 2014, the Board formed a Compensation Committee (the “Committee”) to administer the 2013 Plan.  Employees (including officers), consultants and directors of the General Partner, the Partnership and its affiliates (the “Partnership Entities”) are eligible to receive awards under the 2013 Plan.  The 2013 Plan authorizes up to an aggregate of 2.0 million common units to be available for awards under the 2013 Plan, subject to adjustment as provided in the 2013 Plan.  Awards available for grant under the 2013 Plan include, but are not limited to, restricted units, phantom units, unit options, and unit appreciation rights, but only phantom units have been granted under the 2013 Plan to date. The Committee also has the ability to grant distribution equivalent rights (“DER”) under the 2013 Plan, either alone or in tandem with other specific awards, which entitle the recipient to receive an amount equal to distributions paid on an outstanding common unit.  Upon the occurrence of a “change of control” or an award recipient’s termination of service due to death or “disability” (each quoted term, as defined in the 2013 Plan), any outstanding unvested award will vest in full.
	In July 2014, the Committee authorized the grant of an aggregate of 939,500 phantom units pursuant to the 2013 Plan to certain employees, consultants and non-employee directors of the Partnership Entities. Awards of phantom units are settled in common units, except that an award of less than 1,000 phantom units is settled in cash. If a phantom unit award recipient experiences a termination of service with the Partnership Entities other than (i) as a result of death or “disability” or (ii) due to certain circumstances in connection with a “change of control,” the Committee, at its sole discretion, may decide to vest all or any portion of the recipient’s unvested phantom units as of the date of such termination or may allow the unvested phantom units to remain outstanding and vest pursuant to the vesting schedule set forth in the applicable award agreement.
	Of the July 2014 awards, a total of 100,000 phantom units were granted to certain non-employee directors of the Board and are classified as equity awards (the “Director Grants”).  Each Director Grant will be settled in common units and includes a DER. The Director Grants have an aggregate grant date fair value of $2.5 million and vest in equal annual installments over a three-year period starting from the date of grant. For the three and nine months ended September 30, 2014, the Partnership recorded approximately $0.2 million of unit-based compensation expense with respect to the Director Grants. As of September 30, 2014, the unrecognized unit-based compensation expense for the Director Grants is approximately $2.4 million, which will be recognized ratably over the remaining term of the awards.
	Of the July 2014 awards, a total of 832,000 phantom units were granted to employees and certain consultants of the Partnership Entities and are classified as equity awards (the “Employee Equity Grants”).  Each Employee Equity Grant will be settled in common units and includes a DER.  The Employee Equity Grants have an aggregate grant date fair value of $21.2 million and vest as follows: (i) 25% of the Employee Equity Grants will vest the day after the end of the Subordination Period (as defined in the Partnership’s limited partnership agreement); and (ii) the three remaining 25% installments of the Employee Equity Grants will vest based on the date on which the Partnership has paid, for three consecutive quarters, distributions to its common and subordinated unitholders at or above a stated level, with (A) 25% of the award vesting after distributions are paid at or above $0.4457 per unit for the required period, (B) 25% of the award vesting after distributions are paid at or above $0.4845 per unit for the required period, and (C) the last 25% of the award vesting after distributions are paid at or above $0.5814 per unit for the required period.  To the extent not previously vested, the Employee Equity Grants expire on the fifth anniversary of the date of grant, provided that the expiration date can be extended to the eighth anniversary of the date of grant or longer upon the satisfaction of certain conditions specified in the award agreement.  For the three and nine months ended September 30, 2014, the Partnership recorded approximately $1.3 million of unit-based compensation expense with respect to the Employee Equity Grants. As of September 30, 2014, the unrecognized unit-based compensation expense for the Employee Equity Grants was approximately $19.9 million, which may be recognized variably over the remaining term of the awards based on the probability of the achievement of the performance vesting requirements.
	Of the July 2014 awards, a total of 7,500 phantom units were granted to certain employees of the Partnership Entities and are classified as liability awards for accounting purposes (the “Employee Liability Grants”).  Each Employee Liability Grant will be settled in cash (as such award consists of less than 1,000 phantom units) and includes a DER. The Employee Liability Grants had an aggregate grant date fair value of $0.2 million and have the same term and vesting requirements as the Employee Equity Grants described in the preceding paragraph.  For the three and nine months ended September 30, 2014, the Partnership recorded less than $0.1 million of unit-based compensation expense with respect to the Employee Liability Grants.  As of September 30, 2014, the unrecognized unit based compensation expense for the Employee Liability Grants was approximately $0.2 million, which may be recognized variably over the remaining term of the awards based on the probability of the achievement of the performance vesting requirements and is subject to remeasurement each reporting period until the awards settle.
	Subject to applicable earning criteria, the DER included in each Director Grant, Employee Equity Grant and Employee Liability Grant entitles the award recipient to a cash payment (or, if applicable, payment of other property) equal to the cash distribution (or, if applicable, distribution of other property) paid on an outstanding common unit to unitholders generally based on the number of common units related to the portion of the award recipient’s phantom units that have not vested and been settled as of the record date for such distribution.  Cash distributions paid during the vesting period on phantom units that are classified as equity awards for accounting purposes are reflected initially as a reduction of partners’ capital.  Cash distributions paid on such equity awards that are not initially expected to vest or ultimately do not vest are classified as compensation expense.  As the probability of vesting changes, these initial categorizations could change.  Cash distributions paid during the vesting period on phantom units that are classified as liability awards for accounting purposes are reflected as compensation expense and included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income. During the three and nine months ended September 30, 2014, the Partnership paid approximately $0.4 million in DERs to phantom unit holders, $0.2 million of which was reflected as a reduction of partners’ capital and $0.2 million was reflected as compensation expense and included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income.
	The compensation expense related to the 2013 Plan for the three and nine months ended September 30, 2014 was $1.4 million, which was included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income. The amount recorded as liabilities in “Other non-current liabilities” in the accompanying unaudited condensed consolidated balance sheet as of September 30, 2014 was less than $0.1 million.
	The following table presents phantom units granted pursuant to the 2013 Plan:
		Equity Awards					Liability Awards
		Nine Months Ended					Nine Months Ended
		30-Sep-14					30-Sep-14
		Number			Weighted Avg.		Number		Weighted Avg.
		of Phantom			Grant Date		of Phantom		Grant Date		Fair Value at
		Units			Fair Value		Units		Fair Value		9/30/14
	Balance at December 31, 2013		-		$	-		-	$	-	$	-
	Granted		932,000		$	25.46		7,500	$	25.46	$	25.15
	Vested		-		$	-		-	$	-	$	-
	Forfeited		(1,500	)	$	25.46		-	$	-	$	-
	Balance at September 30, 2014		930,500		$	25.46		7,500	$	25.46	$	25.15

Earnings_Per_Unit

Earnings Per Unit	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Unit	'
	Note 11—Earnings Per Unit
	The Partnership uses the two-class method when calculating the net income per unit applicable to limited partners. The two-class method is based on the weighted-average number of common and subordinated units outstanding during the period. Basic net income per unit applicable to limited partners (including subordinated unitholders) is computed by dividing limited partners’ interest in net income, after deducting distributions, if any, by the weighted-average number of outstanding common and subordinated units. Payments made to the Partnership’s unitholders are determined in relation to actual distributions paid and are not based on the net income allocations used in the calculation of net income per unit.
	Diluted net income per unit applicable to limited partners includes the effects of potentially dilutive units on the Partnership’s units. For the three and nine months ended September 30, 2014, the only potentially dilutive units outstanding consisted of the phantom units (see “Note 10—Equity Plans”). For the three and nine months ended September 30, 2013, the only potentially dilutive units outstanding consisted of GCAC’s preferred units (see “Note 8—Preferred Units”).
	As a result of the recapitalization in connection with the IPO, earnings per unit was adjusted on a retroactive basis, which is reflected in the calculation below (in thousands, except per unit data):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Net Income	$	1,636	$	1,274	$	6,239	$	12,470
	Less:
	Distribution equivalent rights for unissued units		211		-		417		-
	Preferred unit distributions		-		600		-		1,546
	Earnings attributable to preferred units		-		125		-		1,408
	Net income available to limited partners	$	1,425	$	549	$	5,822	$	9,516
	Numerator for basic and diluted earnings per limited partner unit:
	Allocation of net income among limited partner interests:
	Net income allocated to common unitholders	$	756	$	7	$	3,088	$	125
	Net income allocated to subordinated unitholders	$	669	$	542	$	2,734	$	9,391
	Net income allocated to limited partners:	$	1,425	$	549	$	5,822	$	9,516
	Denominator for basic and diluted earnings per limited partner unit:
	Common units - (basic and diluted)		6,868		80		6,868		80
	Subordinated units - (basic and diluted)		6,081		6,023		6,081		6,023
	Earnings per limited partner unit:
	Common - (basic and diluted)	$	0.11	$	0.09	$	0.45	$	1.56
	Subordinated - (basic and diluted)	$	0.11	$	0.09	$	0.45	$	1.56

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Note 12—Related Party Transactions
	Agreements with Affiliates
	Payments to the General Partner and its Affiliates
	The General Partner conducts, directs and manages all activities of the Partnership. The General Partner is reimbursed on a monthly basis, or such other basis as may be determined, for: (i) all direct and indirect expenses it incurs or payments it makes on behalf of the Partnership and its subsidiaries; and (ii) all other expenses allocable to the Partnership and its subsidiaries or otherwise incurred by the General Partner in connection with operating the Partnership and its subsidiaries’ businesses (including expenses allocated to the General Partner by its affiliates).
	For the three months ended September 30, 2014  and 2013, the General Partner incurred expenses of $1.1 million and $0.6 million, respectively. For the nine months ended September 30, 2014 and 2013, the General Partner incurred expenses of $3.0 million and $1.8 million, respectively. Such expenses are reimbursable from the Partnership and are reflected in the “Selling, general and administrative – affiliate” line on the accompanying unaudited condensed consolidated statements of operations and comprehensive income. As of September 30, 2014 and December 31, 2013, the Partnership had a payable of approximately $0.3 million and $0.1 million, respectively, to the General Partner which is reflected as “Due to general partner” in the accompanying unaudited condensed consolidated balance sheets.
	Registration Rights Agreement
	In connection with the IPO, the Partnership entered into a registration rights agreement with the Sponsor. Pursuant to the registration rights agreement, the Partnership is required to file a registration statement to register the common units issued to the Sponsor and the common units issuable upon the conversion of the subordinated units upon request of the Sponsor. In addition, the registration rights agreement gives the Sponsor piggyback registration rights under certain circumstances. The registration rights agreement also includes provisions dealing with holdback agreements, indemnification and contribution and allocation of expenses. These registration rights are transferable to affiliates and, in certain circumstances, to third parties.
	Assignment and Equity Purchase Agreement with GE EFS
	In connection with the IPO, the Partnership entered into an assignment and equity purchase agreement with an affiliate of GE EFS that enabled the Partnership to acquire the LNG Interest. Approximately $72.7 million of the proceeds from the IPO were used to acquire the LNG Interest on the closing date of the IPO.
	Other Transactions with Related Persons
	GCAC Guarantee
	GCAC guarantees up to $20 million of the Partnership’s Credit Facility. Under certain circumstances, the lenders may release GCAC from such guarantee.
	Storage and Throughput Agreements with Center Oil
	During 2007, the Partnership acquired seven terminals from Center Oil for $35.0 million in cash and 750,000 subordinated units in the Partnership. In connection with this purchase, the Partnership entered into a storage and throughput agreement with Center Oil whereby the Partnership provides storage and throughput services for various petroleum products to Center Oil at the terminals acquired by the Partnership in return for a fixed per barrel fee for each outbound barrel of Center Oil product shipped or committed to be shipped. The throughput fee is calculated and due monthly based on the terms and conditions as set forth in the storage and throughput agreement. In addition to the monthly throughput fee, Center Oil is required to pay the Partnership a fixed per barrel fee for any additives added into Center Oil’s product.
	The term of the storage and throughput agreement extends through June 2017.  The agreement will automatically renew for a period of three years at the expiration of the current term at an inflation adjusted rate (subject to a cap), as determined in accordance with the agreement, unless a party delivers a written notice of its election to terminate the storage and throughput agreement at least eighteen months prior to the expiration of the current term.
	In February 2010, the Partnership acquired a 50% undivided interest in the Baltimore, MD terminal. In connection with the acquisition, the Partnership acquired an existing agreement with Center Oil whereby the Partnership provides ethanol storage and throughput services to Center Oil. The Partnership charges Center Oil a fixed fee for storage and a fee based upon ethanol throughput at the Baltimore, MD terminal. The storage and throughput fees are calculated monthly based on the terms and conditions of the storage and throughput agreement. The agreement has a one-year term and comes up for renewal in May 2015.
	In May 2011, the Partnership entered into an agreement to provide refined products storage and throughput services to Center Oil at the Baltimore, MD terminal. The Partnership charges Center Oil a fixed fee for storage and a fee for ethanol blending and any additives added to Center Oil’s product. The storage and throughput fees are calculated monthly based on the terms and conditions of the storage and throughput agreement. The agreement has a one-year term and comes up for renewal in May 2015.
	In May 2013, the Partnership entered into an agreement to provide gasoline storage and throughput services to Center Oil at the Brooklyn, NY terminal. The Partnership charges Center Oil a fixed per barrel fee for each inbound delivery of ethanol and every outbound barrel of product shipped or committed to be shipped and a fee for any ethanol blending and additives added to Center Oil’s product. The storage and throughput fees are calculated monthly based on the terms and conditions of the storage and throughput agreement. The agreement has a one-year term and comes up for renewal in May 2015.
	Storage and Throughput Agreements with GCAC
	In February 2013, and in connection with the GCAC Asset Acquisition, the Partnership entered into a storage and throughput agreement (the “GCAC Agreement 1”) with GCAC whereby the Partnership provides storage and throughput services for various petroleum products to GCAC at the acquired storage tanks existing at the time of the GCAC Asset Acquisition in return for a fixed per barrel storage fee plus a fixed per barrel fee for related throughput and other ancillary services. In addition, the Partnership entered into a second storage and throughput agreement with GCAC (the “GCAC Agreement 2”) whereby the Partnership built an additional 150,000 barrels of storage tanks for GCAC to store and throughput various petroleum products in return for similar economic terms of GCAC Agreement 1.
	The initial term of GCAC Agreements 1 and 2 is approximately five years. These agreements can be mutually extended by both parties as long as the extension is agreed to 180 days prior to the end of the initial termination date; otherwise the Partnership has the right to lease the storage capacity to any third party.
	The total revenues associated with the storage and throughput agreements for Center Oil and GCAC and reflected in the “Revenues – Related parties” line on the accompanying unaudited condensed consolidated statements of operations and comprehensive income are as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Center Oil	$	1,897	$	1,756	$	5,363	$	5,616
	GCAC		464		92		1,390		253
	Total	$	2,361	$	1,848	$	6,753	$	5,869
	The total receivables associated with the storage and throughput agreements for Center Oil and GCAC and reflected in the “Due from related parties” line on the accompanying unaudited condensed consolidated balance sheets are as follows (in thousands):
		As of
		September 30,		December 31,
		2014		2013
	Center Oil	$	511	$	536
	GCAC		314		186
	Total	$	825	$	722
	Operating Lease Agreement
	In January 2014, the Partnership, through its wholly owned subsidiary, Arc Terminals Holdings, entered into a triple net operating lease agreement relating to the Portland Terminal together with a supplemental co-terminus triple net operating lease agreement for the use of certain pipeline infrastructure at such terminal (such lease agreements, collectively, the “Lease Agreement”), pursuant to which Arc Terminals Holdings leased the Portland Terminal from a wholly owned subsidiary of CorEnergy Infrastructure Trust, Inc. (“CorEnergy”).  Arc Logistics guaranteed Arc Terminals Holdings’ obligations under the Lease Agreement. CorEnergy owns a 6.6% direct investment in Lightfoot Capital Partners LP and a 1.5% direct investment in Lightfoot Capital Partners GP LLC, the general partner of Lightfoot.  The Lease Agreement has a 15-year initial term and may be extended for additional five-year terms at the sole discretion of Arc Terminals Holdings, subject to renegotiated rental payment terms.
	During the term of the Lease Agreement, Arc Terminals Holdings will make base monthly rental payments and variable rent payments based on the volume of liquid hydrocarbons that flowed through the Portland Terminal in the prior month.  The base rents in the initial years of the Lease Agreement were $230,000 per month through July 2014 (prorated for the partial month of January 2014) and are $417,522 for each month thereafter until the end of year five.  The base rents also increased each month starting with the month of August 2014 by a factor of 0.00958 of the specified construction costs incurred by LCP Oregon Holdings LLC (“LCP Oregon”) at the Portland Terminal, estimated at $10 million.  Assuming such improvements are completed, the base rent will increase by approximately $95,800 per month.  As of September 30, 2014, additional spending on terminal-related projects totaled approximately $4.4 million.    The base rents will be increased at the end of year five by the change in the consumer price index for the prior five years, and every year thereafter by the greater of two percent or the change in the consumer price index. The base rent is not influenced by the flow of hydrocarbons. Variable rent will result from the flow of hydrocarbons through the Portland Terminal in excess of a designated threshold of 12,500 barrels per day of oil equivalent.  Variable rent is capped at 30% of base rent payments regardless of the level of hydrocarbon throughput.  During the three and nine months ended September 30, 2014, the expense associated with the Lease Agreement was $1.2 million and $2.4 million, respectively.  During the three and nine months ended September 30, 2014, there was no variable rent associated with the Lease Agreement.
	So long as Arc Terminals Holdings is not in default under the Lease Agreement, it shall have the right to purchase the Portland Terminal at the end of the third year of the Lease Agreement and at the end of any month thereafter by delivery of 90 days’ notice (“Purchase Option”). The purchase price shall be the greater of (i) nine times the total of base rent and variable rent for the 12 months immediately preceding the notice and (ii) $65.7 million. If the purchase right is not exercised, the Lease Agreement shall remain in place and Arc Terminals Holdings shall continue to pay rent as provided above. Arc Terminals Holdings also has the option to terminate the Lease Agreement on the fifth and tenth anniversaries, by providing written notice 12 months in advance, for a termination fee of approximately $4 million and $6 million, respectively.

Major_Customers

Major Customers	9 Months Ended
	Sep. 30, 2014
Risks And Uncertainties [Abstract]	'
Major Customers	'
	Note 13—Major Customers
	The following table presents the percentage of revenues and receivables associated with the Partnership’s significant customers (those that have accounted for 10% or more of the Partnership’s revenues in a given period) for the periods indicated:
		% of Revenues						% of Revenues
		Three Months Ended						Nine Months Ended						% of Receivables
		September 30,						September 30,						September 30,			December 31,
		2014			2013			2014			2013			2014			2013
	Customer A		23	%		2	%		19	%		3	%		42	%		7	%
	Customer B		14	%		14	%		13	%		5	%		9	%		10	%
	Total		37	%		16	%		32	%		8	%		51	%		17	%

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Note 14—Commitments and Contingencies
	Environmental matters
	The Partnership may have environmental liabilities that arise from time to time in the ordinary course of business and provides for losses associated with environmental remediation obligations, when such losses are probable and reasonably estimable. Estimated losses from environmental remediation obligations generally are recognized no later than completion of the remedial feasibility study. Loss accruals are adjusted as further information becomes available or circumstances change. Costs of future expenditures for environmental remediation obligations are not discounted to their present value. There were no accruals recorded for environmental losses as of September 30, 2014 and December 31, 2013.
	Commitments and contractual obligations
	Future non-cancelable commitments related to certain contractual obligations as of September 30, 2014 are presented below (in thousands):
		Payments Due by Period
		Total		2014		2015		2016		2017		2018		Thereafter
	Long-term debt obligations	$	108,063	$	-	$	-	$	-	$	-	$	108,063	$	-
	Operating lease obligations		31,708		1,484		6,436		6,472		6,342		10,868		106
	Total	$	139,771	$	1,484	$	6,436	$	6,472	$	6,342	$	118,931	$	106
	The schedule above assumes the Partnership will either exercise its Purchase Option or its right to terminate the Lease Agreement.
	In April 2014, the members of Gulf LNG Holdings approved spending up to approximately $13.0 million towards the development of a potential natural gas liquefaction and export terminal at the LNG Facility. For the nine months ended September 30, 2014, capital calls totaling $10.0 million were issued to all members of Gulf LNG Holdings, for which the Partnership’s pro rata share was approximately $1.0 million. As of September 30, 2014, the Partnership’s pro rata share of the remaining capital commitment was approximately $0.8 million, of which $0.5 million was paid in October 2014.
	In addition to the above, GCAC is able to receive up to an additional $5.0 million in cash earnout payments based upon the throughput activity of one customer through December 31, 2016. As of September 30, 2014, no additional amounts had been paid or are owed to GCAC.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	Note 15—Subsequent Events
	Cash Distribution
	In October 2014, the Partnership declared a quarterly cash distribution of $0.41 per unit ($1.64 per unit on an annualized basis) totaling approximately $5.3 million for all common and subordinated units outstanding. The distribution is for the period from July 1, 2014 through September 30, 2014. The third quarter 2014 distribution represents a 2.5% increase over the second quarter 2014 cash distribution of $0.40 per unit ($1.60 per unit on an annualized basis). The distribution is payable on November 17, 2014 to unitholders of record on November 10, 2014.

Organization_and_Presentation_

Organization and Presentation (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying interim statements of the Partnership have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X issued by the SEC. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, and disclosures necessary for a fair presentation of these interim statements have been included. The results reported in these interim statements are not necessarily indicative of the results that may be reported for the entire year or for any other period. These interim statements should be read in conjunction with the Partnership’s consolidated financial statements for the year ended December 31, 2013, which are included in the Partnership’s Annual Report on Form 10-K, as filed with the SEC. The year-end balance sheet data was derived from the audited financial statements, but does not include all disclosures required by GAAP.
	The Partnership has disclosed consolidated figures of the Partnership as if the Partnership had operated since the inception of Arc Terminals. The contribution of Arc Terminals to Arc Logistics in connection with the IPO was not considered a business combination accounted for under the purchase method as it was a transfer of assets under common control and, accordingly, balances have been transferred at their historical cost. The condensed consolidated financial statements for the periods prior to the contribution on November 12, 2013 have been prepared using Arc Terminals’ historical basis in the assets and liabilities and include all revenues, costs, assets and liabilities attributed to Arc Terminals.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. The most significant estimates relate to the valuation of acquired businesses, goodwill and intangible assets and the useful lives of intangible assets and property, plant and equipment. Actual results could differ from those estimates.
Goodwill	'
	Goodwill
	Goodwill represents the excess of consideration paid over the fair value of net assets acquired in a business combination. Goodwill is not amortized but instead is assessed for impairment at least annually or when facts and circumstances warrant. The Partnership determined at December 31, 2013 that there were no impairment charges and subsequent to that date no event indicating an impairment has occurred.
	A summary of the changes in the carrying amount of goodwill is as follows (in thousands):
		As of
		September 30,		December 31,
		2014		2013
	Beginning Balance	$	15,162	$	6,730
	Goodwill acquired		-		8,432
	Impairment		-		-
	Ending Balance	$	15,162	$	15,162
Deferred Rent	'
	Deferred Rent
	The Lease Agreement (as defined in “Note 12—Related Party Transactions—Other Transactions with Related Persons—Operating Lease Agreement” below) contains certain rent escalation clauses, contingent rent provisions and lease termination payments. The Partnership recognizes rent expense for operating leases on a straight-line basis over the term of the lease, taking into consideration the items noted above. Contingent rental payments are generally recognized as rent expense as incurred. The deferred rent resulting from the recognition of rent expense on a straight-line basis related to the Lease Agreement is included within “Other non-current liabilities” in the accompanying unaudited condensed consolidated balance sheet at September 30, 2014.
Revenue Recognition	'
	Revenue Recognition
	Revenues from leased tank storage and delivery services are recognized as the services are performed, evidence of a contractual arrangement exists and collectability is reasonably assured. Revenues also include the sale of excess products and additives which are mixed with customer-owned liquid products. Revenues for the sale of excess products and additives are recognized when title and risk of loss passes to the customer.
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at a specified measurement date. Fair value measurements are derived using inputs and assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. GAAP establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This three-tier hierarchy classifies fair value amounts recognized or disclosed in the condensed consolidated financial statements based on the observability of inputs used to estimate such fair values. The classification within the hierarchy of a financial asset or liability is determined based on the lowest level input that is significant to the fair value measurement. The hierarchy considers fair value amounts based on observable inputs (Level 1 and 2) to be more reliable and predictable than those based primarily on unobservable inputs (Level 3). At each balance sheet reporting date, the Partnership categorizes its financial assets and liabilities using this hierarchy.
	The amounts reported in the balance sheet for cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair value because of the short-term maturities of these instruments (Level 1). Since the Credit Facility has a market rate of interest its carrying amount approximated fair value (Level 2).
	The Partnership believes that its valuation methods are appropriate and consistent with the values that would be determined by other market participants. However, the use of different methodologies or assumptions to determine fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.
Unit-Based Compensation	'
	Unit-Based Compensation
	The Partnership recognizes all unit-based compensation to directors, officers, employees and other service providers in the consolidated financial statements based on the fair value of the awards.  Fair value for unit-based awards classified as equity awards is determined on the grant date of the award and this value is recognized as compensation expense ratably over the requisite service or performance period of the equity award. Fair value for equity awards is calculated at the closing price of the common units on the grant date. Fair value for unit-based awards classified as liability awards is calculated at the closing price of the common units on the grant date and is remeasured at each reporting period until the award is settled. Compensation expense related to unit-based awards is included in the “Selling, general and administrative” line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive income.
	For awards with performance conditions, the expense is accrued over the service period only if the performance condition is considered to be probable of occurring. When awards with performance conditions that were previously considered improbable become probable, the Partnership incurs additional expense in the period that the probability assessment changes (see “Note 10—Equity Plans”).
Net Income Per Unit	'
	Net Income Per Unit
	The Partnership uses the two-class method in the computation of earnings per unit since there is more than one participating class of securities. Earnings per common and subordinated unit are determined by dividing net income allocated to the common units and subordinated units, respectively, after deducting the amount allocated to the phantom and preferred unitholders, if any, by the weighted average number of outstanding common and subordinated units, respectively, during the period. The overall computation, presentation and disclosure of the Partnership’s limited partners’ net income per unit are made in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 260 “Earnings per Share.”
Segment Reporting	'
	Segment Reporting
	The Partnership derives revenue from operating its terminal and transloading facilities.  These facilities have been aggregated into one reportable segment because the facilities have similar long-term economic characteristics, products and types of customers.
Recently Issued Accounting Pronouncements	'
	Recently Issued Accounting Pronouncements
	In May 2014, the FASB issued updated guidance on the reporting and disclosure of revenue recognition. The update requires that an entity recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires new qualitative and quantitative disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, information about contract balances and performance obligations, and assets recognized from costs incurred to obtain or fulfill a contract. The Partnership is currently evaluating the potential impact of this authoritative guidance on its financial condition, results of operations, cash flows and related disclosures.  This guidance will be effective for the Partnership beginning in the first quarter of 2017.
	In June 2014, the FASB issued new guidance related to stock compensation.  The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition.  As such, the performance target should not be reflected in estimating the grant date fair value of the award.  This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered.  The Partnership does not expect this requirement to have a significant impact on its financial condition, results of operations, cash flows and related disclosures.  This guidance will be effective for the Partnership beginning in the first quarter of 2016, with early adoption optional.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Schedule of Goodwill	'
	A summary of the changes in the carrying amount of goodwill is as follows (in thousands):
		As of
		September 30,		December 31,
		2014		2013
	Beginning Balance	$	15,162	$	6,730
	Goodwill acquired		-		8,432
	Impairment		-		-
	Ending Balance	$	15,162	$	15,162

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2014
Pro Forma Financial Results	'
	The following unaudited pro forma financial results for the nine months ended September 30, 2013 are presented for comparative purposes only and assume the GCAC acquisition had occurred on January 1, 2013. The effects of the acquisition of GCAC are included in the accompanying unaudited condensed consolidated statement of operations and comprehensive income for the three and nine months ended September 30, 2014, as well as for the three months ended September 30, 2013. The unaudited pro forma results reflect certain adjustments to the acquisition, such as increased depreciation and amortization expense on the fair value of the assets acquired. The unaudited pro forma financial results may not be indicative of the results that would have occurred had the acquisition been completed at the beginning of the period presented, nor are they indicative of future results of operations (in thousands, except per unit amounts):
			Nine Months Ended
			30-Sep-13
			(unaudited proforma)
	Total revenues		$	36,930
	Operating income			9,017
	Net Income		$	15,255
	Less: Net income attributable to preferred units		$	1,800
	Net income attributable to partners’ capital		$	13,455
	Earnings per unit - Basic:
	Common and Subordinated		$	2.48
	Earnings per unit - Diluted:
	Common and Subordinated		$	2.04
Gulf Coast Asphalt Company, L.L.C. [Member]	'
Summary of Consideration Paid and Amounts of Assets Acquired	'
	The following table summarizes the consideration paid and the amounts of assets acquired at the acquisition date (in thousands):
	Consideration:
	Cash paid to seller	$	25,000
	Debt assumed		30,000
	Preferred units issued		30,000
	Total consideration	$	85,000
	Allocation of purchase price:
	Property and equipment	$	39,242
	Intangible assets		37,326
	Goodwill		8,432
	Net assets acquired	$	85,000
Motiva Enterprises LLC [Member]	'
Summary of Consideration Paid and Amounts of Assets Acquired	'
	The following table summarizes the consideration paid and the amount of assets acquired at the acquisition date (in thousands):
	Consideration:
	Cash paid to seller	$	27,000
	Allocation of purchase price:
	Property and equipment	$	36,749
	Inventory		19
	Intangible assets		2,009
	Bargain purchase gain		(11,777	)
	Net assets acquired	$	27,000

Investment_in_Unconsolidated_A1

Investment in Unconsolidated Affiliate (Tables)	9 Months Ended
	Sep. 30, 2014
Schedule of Investment in Unconsolidated Affiliate	'
	“Investment in unconsolidated affiliate” consisted of the LNG Interest and its balances as of September 30, 2014 and December 31, 2013 are represented below (in thousands):
	Balance at December 31, 2013	$	72,046
	Equity earnings		7,406
	Contributions		681
	Distributions		(7,298	)
	Amortization of premium		(232	)
	Other comprehensive income		285
	Balance at September 30, 2014	$	72,888
Schedule of Estimated Aggregate Amortization of Premium	'
	The estimated aggregate amortization of this premium for its remaining useful life from September 30, 2014 is as follows (in thousands):
		Total
	2014	$	75
	2015		309
	2016		309
	2017		309
	2018		309
	Thereafter		7,062
		$	8,373
Gulf LNG Holdings [Member]	'
Schedule of Investment in Unconsolidated Affiliate	'
	Summarized financial information for the Gulf LNG Holdings is reported below (in thousands):
		September 30,			December 31,
		2014			2013
	Balance sheets
	Current assets	$	11,506		$	8,694
	Noncurrent assets		931,137			952,630
	Total assets	$	942,643		$	961,324
	Current liabilities	$	83,501		$	81,173
	Long-term liabilities		739,341			773,115
	Member’s equity		119,801			107,036
	Total liabilities and member’s equity	$	942,643		$	961,324
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014			2013		2014		2013
	Income statements
	Revenues	$	46,561		$	46,522	$	139,682	$	139,567
	Total operating costs and expenses		14,198			13,434		42,629		42,160
	Operating income		32,363			33,088		97,053		97,407
	Net income	$	24,097		$	24,370	$	71,900	$	71,027

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2014
Property Plant And Equipment [Abstract]	'
Schedule of Property, Plant and Equipment	'
	The Partnership’s property, plant and equipment consisted of (in thousands):
		As of
		September 30,			December 31,
		2014			2013
	Land	$	51,175		$	51,175
	Buildings and site improvements		36,438			34,660
	Tanks and trim		94,666			92,337
	Machinery and equipment		34,220			32,819
	Office furniture and equipment		2,474			2,334
	Construction in progress		5,897			5,003
			224,870			218,328
	Less:  Accumulated depreciation		(22,170	)		(16,851	)
	Property, plant and equipment, net	$	202,700		$	201,477

Intangible_Assets_Tables

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Summary of Partnership's Intangible Assets	'
	The Partnership’s intangible assets consisted of (in thousands):
		Estimated	As of
		Useful Lives	September 30,			December 31,
		in Years	2014			2013
	Customer relationships	21	$	4,785		$	4,785
	Acquired contracts	10-Feb		39,900			39,900
	Noncompete agreements	3-Feb		741			741
				45,426			45,426
	Less:  Accumulated amortization			(10,946	)		(7,119	)
	Intangible assets, net		$	34,480		$	38,307

Partners_Capital_and_Distribut1

Partners' Capital and Distributions (Tables)	9 Months Ended
	Sep. 30, 2014
Partners Capital Account Distributions [Abstract]	'
Schedule of the Quarterly Distributions Related to the Partnership's Quarterly Financial Results	'
	The table below summarizes the quarterly distributions related to the Partnership’s quarterly financial results (in thousands, except per unit data):
		Total Quarterly			Total Cash			Date of	Unitholders
	Quarter Ended	Distribution Per Unit			Distribution			Distribution	Record Date
	30-Sep-14	$	0.41		$	5,309		November 17, 2014 (1)	November 10, 2014 (1)
	30-Jun-14	$	0.4		$	5,180		18-Aug-14	11-Aug-14
	31-Mar-14	$	0.3875		$	5,018		16-May-14	9-May-14
	31-Dec-13	$	0.2064		$	2,673		February 18, 2014 (2)	February 10, 2014 (2)
	(1) Expected dates as of the filing date.
	(2) Initial pro rata cash distribution, prorated for the period from November 13, 2013 to December 31, 2013.
Percentage of Incentive Distribution Rights to Partnership's Unitholders and General Partner	'
	If cash distributions to the Partnership’s unitholders exceed $0.4456 per unit in any quarter, the Partnership’s unitholders and the General Partner, as the initial holder of the incentive distribution rights, will receive distributions according to the following percentage allocations:
	Total Quarterly	Marginal Percentage
	Distribution Per Unit	Interest
	Target Amount	in Distributions
		Unitholders			General
					Partner
	above $0.3875 up to $0.4456		100	%		0	%
	above $0.4456 up to $0.4844		85	%		15	%
	above $0.4844 up to $0.5813		75	%		25	%
	above $0.5813		50	%		50	%

Equity_Plans_Table

Equity Plans (Table)	9 Months Ended
	Sep. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Schedule of Share-based Compensation, Stock Options, Activity	'
	The following table presents phantom units granted pursuant to the 2013 Plan:
		Equity Awards					Liability Awards
		Nine Months Ended					Nine Months Ended
		30-Sep-14					30-Sep-14
		Number			Weighted Avg.		Number		Weighted Avg.
		of Phantom			Grant Date		of Phantom		Grant Date		Fair Value at
		Units			Fair Value		Units		Fair Value		9/30/14
	Balance at December 31, 2013		-		$	-		-	$	-	$	-
	Granted		932,000		$	25.46		7,500	$	25.46	$	25.15
	Vested		-		$	-		-	$	-	$	-
	Forfeited		(1,500	)	$	25.46		-	$	-	$	-
	Balance at September 30, 2014		930,500		$	25.46		7,500	$	25.46	$	25.15

Earnings_Per_Unit_Tables

Earnings Per Unit (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Unit	'
	As a result of the recapitalization in connection with the IPO, earnings per unit was adjusted on a retroactive basis, which is reflected in the calculation below (in thousands, except per unit data):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Net Income	$	1,636	$	1,274	$	6,239	$	12,470
	Less:
	Distribution equivalent rights for unissued units		211		-		417		-
	Preferred unit distributions		-		600		-		1,546
	Earnings attributable to preferred units		-		125		-		1,408
	Net income available to limited partners	$	1,425	$	549	$	5,822	$	9,516
	Numerator for basic and diluted earnings per limited partner unit:
	Allocation of net income among limited partner interests:
	Net income allocated to common unitholders	$	756	$	7	$	3,088	$	125
	Net income allocated to subordinated unitholders	$	669	$	542	$	2,734	$	9,391
	Net income allocated to limited partners:	$	1,425	$	549	$	5,822	$	9,516
	Denominator for basic and diluted earnings per limited partner unit:
	Common units - (basic and diluted)		6,868		80		6,868		80
	Subordinated units - (basic and diluted)		6,081		6,023		6,081		6,023
	Earnings per limited partner unit:
	Common - (basic and diluted)	$	0.11	$	0.09	$	0.45	$	1.56
	Subordinated - (basic and diluted)	$	0.11	$	0.09	$	0.45	$	1.56

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2014
Revenues [Member]	'
Schedule of Related Party Transactions	'
	The total revenues associated with the storage and throughput agreements for Center Oil and GCAC and reflected in the “Revenues – Related parties” line on the accompanying unaudited condensed consolidated statements of operations and comprehensive income are as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Center Oil	$	1,897	$	1,756	$	5,363	$	5,616
	GCAC		464		92		1,390		253
	Total	$	2,361	$	1,848	$	6,753	$	5,869
Receivables [Member]	'
Schedule of Related Party Transactions	'
	The total receivables associated with the storage and throughput agreements for Center Oil and GCAC and reflected in the “Due from related parties” line on the accompanying unaudited condensed consolidated balance sheets are as follows (in thousands):
		As of
		September 30,		December 31,
		2014		2013
	Center Oil	$	511	$	536
	GCAC		314		186
	Total	$	825	$	722

Major_Customers_Tables

Major Customers (Tables)	9 Months Ended
	Sep. 30, 2014
Risks And Uncertainties [Abstract]	'
Schedules of Percentages of Revenues and Receivables Associated with Significant Customers	'
	The following table presents the percentage of revenues and receivables associated with the Partnership’s significant customers (those that have accounted for 10% or more of the Partnership’s revenues in a given period) for the periods indicated:
		% of Revenues						% of Revenues
		Three Months Ended						Nine Months Ended						% of Receivables
		September 30,						September 30,						September 30,			December 31,
		2014			2013			2014			2013			2014			2013
	Customer A		23	%		2	%		19	%		3	%		42	%		7	%
	Customer B		14	%		14	%		13	%		5	%		9	%		10	%
	Total		37	%		16	%		32	%		8	%		51	%		17	%

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Schedule of Future Non-Cancelable Commitments Related to Certain Contractual Obligations	'
	Future non-cancelable commitments related to certain contractual obligations as of September 30, 2014 are presented below (in thousands):
		Payments Due by Period
		Total		2014		2015		2016		2017		2018		Thereafter
	Long-term debt obligations	$	108,063	$	-	$	-	$	-	$	-	$	108,063	$	-
	Operating lease obligations		31,708		1,484		6,436		6,472		6,342		10,868		106
	Total	$	139,771	$	1,484	$	6,436	$	6,472	$	6,342	$	118,931	$	106

Organization_and_Presentation_1

Organization and Presentation - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended	1 Months Ended		9 Months Ended	0 Months Ended	9 Months Ended		9 Months Ended
	Nov. 30, 2013	Sep. 30, 2014	Nov. 30, 2013	Nov. 30, 2013	Sep. 30, 2014	Nov. 12, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
			Initial Public Offering [Member]	Initial Public Offering [Member]	Gulf LNG Holdings [Member]	Gulf LNG Holdings [Member]	GE EFS [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]	Lightfoot Capital Partners LP [Member]
			Limited Partners [Member]	Underwriters' Over-allotment Option [Member]		Initial Public Offering [Member]
				Limited Partners [Member]
Organization [Line Items]	'	'	'	'	'	'	'	'	'
Limited liability company interest	'	'	'	'	'	10.30%	'	'	'
Common units issued in initial public offering	'	'	6,786,869	786,869	'	'	'	'	'
Common units issued, per unit	'	'	$19	'	'	'	'	'	'
Net proceeds from Offering	$120,200,000	'	'	'	'	'	'	'	'
Purchase of LNG Interest from an affiliate	'	681,000	'	'	72,700,000	'	72,700,000	'	'
Cash distribution	'	'	'	'	'	'	'	29,800,000	'
Intercompany payables	'	'	'	'	'	'	'	'	6,600,000
Restated Credit Facility	'	$6,000,000	'	'	'	'	'	'	'

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
	Segment
Accounting Policies [Abstract]	'	'
Impairment charges	'	$0
Number of reportable segment	1	'

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Schedule of Goodwill (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
Beginning Balance	$15,162	$6,730
Goodwill acquired	'	8,432
Impairment	0	0
Ending Balance	$15,162	$15,162

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	9 Months Ended				1 Months Ended	8 Months Ended	9 Months Ended	1 Months Ended	8 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2013	Sep. 30, 2013	Sep. 30, 2014	Feb. 28, 2013	Sep. 30, 2013
					Gulf Coast Asphalt Company, L.L.C. [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]	Motiva Enterprises LLC [Member]	Motiva Enterprises LLC [Member]
					Customer
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'
Total consideration	'	'	'	'	$85,000,000	'	'	'	'
Cash paid to seller	'	'	'	'	25,000,000	'	'	27,000,000	'
Debt assumed	'	'	'	'	30,000,000	'	'	'	'
Preferred units issued	30,000,000	'	'	'	30,000,000	'	'	'	'
Identifiable assets acquired, fair value	'	'	'	'	76,600,000	'	'	38,800,000	'
Goodwill	'	15,162,000	15,162,000	6,730,000	8,432,000	'	'	'	'
Transaction costs	'	'	'	'	1,900,000	'	'	1,500,000	'
Earnout payments, high	'	'	'	'	5,000,000	'	'	'	'
Earnout payments	'	'	'	'	'	'	0	'	'
Earnout payments condition	'	'	'	'	'	'	'Throughput activity of one customer through December 31, 2016.	'	'
Business combination, contingent consideration, number of customers considered	'	'	'	'	1	'	'	'	'
Total revenue	'	'	'	'	'	13,200,000	'	'	4,100,000
Operating income	'	'	'	'	'	7,100,000	'	'	2,400,000
Bargain purchase gain	$11,777,000	'	'	'	'	'	'	$11,777,000	'

Acquisitions_Summary_of_Consid

Acquisitions - Summary of Consideration Paid and Amounts of Assets Acquired (Detail) (USD $)	9 Months Ended				1 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2013	Feb. 28, 2013
					Gulf Coast Asphalt Company, L.L.C. [Member]	Motiva Enterprises LLC [Member]
Consideration:	'	'	'	'	'	'
Cash paid to seller	'	'	'	'	$25,000,000	$27,000,000
Debt assumed	'	'	'	'	30,000,000	'
Preferred units issued	30,000,000	'	'	'	30,000,000	'
Total consideration	'	'	'	'	85,000,000	'
Allocation of purchase price:	'	'	'	'	'	'
Property and equipment	'	'	'	'	39,242,000	36,749,000
Inventory	'	'	'	'	'	19,000
Intangible assets	'	'	'	'	37,326,000	2,009,000
Goodwill	'	15,162,000	15,162,000	6,730,000	8,432,000	'
Gain on bargain purchase of business	-11,777,000	'	'	'	'	-11,777,000
Net assets acquired	'	'	'	'	85,000,000	'
Net assets acquired	'	'	'	'	'	$27,000,000

Acquisitions_Pro_Forma_Financi

Acquisitions - Pro Forma Financial Results (Detail) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014
Business Combinations [Abstract]	'
Total revenues	$36,930
Operating income	9,017
Net Income	15,255
Less: Net income attributable to preferred units	1,800
Net income attributable to partnersb capital	$13,455
Earnings per unit - Basic:	'
Common and Subordinated	$2.48
Earnings per unit - Diluted:	'
Common and Subordinated	$2.04

Investment_in_Unconsolidated_A2

Investment in Unconsolidated Affiliate - Schedule of Investments in Unconsolidated Affiliate (Detail) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014
Investments In And Advances To Affiliates Schedule Of Investments [Abstract]	'	'
Beginning balance	'	$72,046
Equity earnings	2,482	7,406
Contributions	'	681
Distributions	'	-7,298
Amortization of premium	'	-232
Other comprehensive income	725	285
Ending balance	$72,888	$72,888

Investment_in_Unconsolidated_A3

Investment in Unconsolidated Affiliate - Additional Information (Detail) (USD $)	0 Months Ended	9 Months Ended
	Nov. 12, 2013	Sep. 30, 2014
Schedule Of Investments [Line Items]	'	'
Purchase of LNG Interest from an affiliate	'	681,000
Gulf LNG Holdings Group, LLC Acquisition [Member]	'	'
Schedule Of Investments [Line Items]	'	'
Purchase of LNG Interest from an affiliate	72,700,000	'
Carrying value of LNG Interest	64,100,000	'
Purchase price excess paid over the carrying value	$8,600,000	'
Long lived assets useful life	'	'28 years

Investment_in_Unconsolidated_A4

Investment in Unconsolidated Affiliate - Schedule of Estimated Aggregate Amortization of Premium (Detail) (Gulf LNG Holdings Group, LLC Acquisition [Member], USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Gulf LNG Holdings Group, LLC Acquisition [Member]	'
Business Acquisition [Line Items]	'
Estimated future amortization expense, 2014	$75
Estimated future amortization expense, 2015	309
Estimated future amortization expense, 2016	309
Estimated future amortization expense, 2017	309
Estimated future amortization expense, 2018	309
Estimated future amortization expense, Thereafter	7,062
Total future amortization expense	$8,373

Investment_in_Unconsolidated_A5

Investment in Unconsolidated Affiliate - Summarized Financial Information for the Gulf LNG Holdings (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Balance sheets	'	'	'	'	'
Current assets	$11,454	'	$11,454	'	$10,658
Total assets	338,280	'	338,280	'	339,366
Current liabilities	5,434	'	5,434	'	6,411
Total liabilities and partnersb capital	338,280	'	338,280	'	339,366
Income statements	'	'	'	'	'
Revenues	13,690	12,625	41,631	35,329	'
Total operating costs and expenses	13,651	9,892	40,024	29,776	'
Operating income	39	2,733	1,607	5,553	'
Net income	1,636	674	6,239	10,924	'
Gulf LNG Holdings Group, LLC Acquisition [Member]	'	'	'	'	'
Balance sheets	'	'	'	'	'
Current assets	11,506	'	11,506	'	8,694
Noncurrent assets	931,137	'	931,137	'	952,630
Total assets	942,643	'	942,643	'	961,324
Current liabilities	83,501	'	83,501	'	81,173
Long-term liabilities	739,341	'	739,341	'	773,115
Memberbs equity	119,801	'	119,801	'	107,036
Total liabilities and partnersb capital	942,643	'	942,643	'	961,324
Income statements	'	'	'	'	'
Revenues	46,561	46,522	139,682	139,567	'
Total operating costs and expenses	14,198	13,434	42,629	42,160	'
Operating income	32,363	33,088	97,053	97,407	'
Net income	$24,097	$24,370	$71,900	$71,027	'

Property_Plant_and_Equipment_S

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	$224,870	$218,328
Less: Accumulated depreciation	-22,170	-16,851
Property, plant and equipment, net	202,700	201,477
Land [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	51,175	51,175
Building and Site Improvements [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	36,438	34,660
Tanks and Trim [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	94,666	92,337
Machinery and Equipment [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	34,220	32,819
Office Furniture and Equipment [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	2,474	2,334
Construction in Progress [Member]	'	'
Property Plant And Equipment [Line Items]	'	'
Property, plant and equipment, gross	$5,897	$5,003

Intangible_Assets_Summary_of_P

Intangible Assets - Summary of Partnership's Intangible Assets (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets, gross	$45,426	$45,426
Less: Accumulated amortization	-10,946	-7,119
Intangible assets, net	34,480	38,307
Customer Relationships [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets estimated useful life	'21 years	'
Intangible assets, gross	4,785	4,785
Contract-Based Intangible Assets [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets, gross	39,900	39,900
Contract-Based Intangible Assets [Member] | Minimum [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets estimated useful life	'2 years	'
Contract-Based Intangible Assets [Member] | Maximum [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets estimated useful life	'10 years	'
Noncompete Agreements [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets, gross	$741	$741
Noncompete Agreements [Member] | Minimum [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets estimated useful life	'2 years	'
Noncompete Agreements [Member] | Maximum [Member]	'	'
Finite Lived Intangible Assets [Line Items]	'	'
Intangible assets estimated useful life	'3 years	'

Intangible_Assets_Additional_I

Intangible Assets - Additional Information (Detail) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Finite Lived Intangible Assets Future Amortization Expense [Abstract]	'
Estimated future amortization expense, remainder of 2014	$1.30
Estimated future amortization expense, 2015	4.3
Estimated future amortization expense, 2016	3.9
Estimated future amortization expense, 2017	3.9
Estimated future amortization expense, 2018	3.9
Estimated future amortization expense, thereafter	$17.20

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Nov. 12, 2013

Sep. 30, 2014

Sep. 30, 2014

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Sep. 30, 2014

Jan. 31, 2012

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Nov. 12, 2013

Feb. 28, 2013

Sep. 30, 2014

Feb. 28, 2013

Feb. 28, 2013

Feb. 28, 2013

Gulf Coast Asphalt Company, L.L.C. [Member]

Minimum [Member]

Maximum [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Credit Facility [Member]

Terminal Credit Facility [Member]

Terminal Credit Facility [Member]

Terminal Credit Facility [Member]

Terminal Credit Facility [Member]

Terminal Credit Facility [Member]

Senior Notes [Member]

Maximum [Member]

Base Rate [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

One-Month LIBOR Rate [Member]

Federal Funds Rate [Member]

Standby Letters of Credit [Member]

Gulf Coast Asphalt Company, L.L.C. [Member]

Motiva [Member]

Term Loan [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Line Of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving line of credit, initiation date

'

'

'

'

'

'

31-Jan-12

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, amount

'

$29.10

$20

'

'

$175

'

$40

'

'

'

'

'

'

'

'

'

$65

'

'

'

$65

Credit facility borrowing amount

'

108.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22

'

'

'

Line of Credit Facility, interest rate

'

2.66%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of commitments under the Credit Facility

'

'

'

'

'

100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sublimit for issuance of swing line loans

5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sublimit for letters of credit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10

'

'

'

'

'

Credit Facility, maturity date

'

'

'

'

'

'

12-Nov-18

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis points spread on floating rate debt

'

'

'

'

'

'

'

'

'

'

1.00%

2.00%

2.00%

3.00%

1.00%

0.50%

'

'

'

'

'

'

Commitment fee percentage on unused portion of facility

'

'

'

0.38%

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of increase in interest rate on default exists

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Credit Facility to be maintained as per credit facility

'

'

'

'

'

4.5

'

'

'

'

'

'

'

'

'

'

'

5

3.75

'

'

'

Increase in Partnership leverage ratio

'

'

'

'

'

'

'

'

'

5

'

'

'

'

'

'

'

'

'

'

'

'

Future issuance of debt

'

'

'

'

'

'

'

'

200

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum interest coverage ratio

'

'

'

'

'

2.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum secured leverage ratio

'

'

'

'

'

3.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility borrowing amount

'

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20

'

'

'

Decrease in Partnership leverage ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4

3.5

'

'

'

Minimum fixed charge ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.25

1.25

'

'

'

Credit facility, term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

Additional credit facility amount borrowed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$55

$27

'

Preferred_Units_Additional_Inf

Preferred Units - Additional Information (Detail) (USD $)	9 Months Ended		3 Months Ended	9 Months Ended	1 Months Ended		0 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Feb. 28, 2013	Nov. 12, 2013	Nov. 12, 2013	Nov. 12, 2013
			Redeemable Preferred Units	Redeemable Preferred Units	Gulf Coast Asphalt Company, L.L.C. [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]
							Common Units [Member]	Subordinated Units [Member]
Preferred Units [Line Items]	'	'	'	'	'	'	'	'
Preferred units issued	'	'	'	'	1,500,000	'	'	'
Issuance of preferred units	'	$30,000,000	'	'	$30,000,000	'	'	'
Percentage of preferred units annual distributions	8.00%	'	'	'	'	'	'	'
Period of preferred unit annual distributions paid	'45 days	'	'	'	'	'	'	'
Percentage of interest rate on unpaid distribution dividend	8.00%	'	'	'	'	'	'	'
Common units issued in initial public offering	'	'	'	'	'	'	779	58,426
Cash	'	'	'	'	'	29,000,000	'	'
Cash distributions to preferred unit holders	'	'	$600,000	$900,000	'	'	'	'

Partners_Capital_and_Distribut2

Partners' Capital and Distributions - Schedule of the Quarterly Distributions Related to the Partnership's Quarterly Financial Results (Detail) (USD $)	3 Months Ended						9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014		Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2014	Sep. 30, 2013
Incentive Distribution Managing Member Or General Partner [Abstract]	'		'	'	'		'	'
Total Quarterly Distribution Per Unit	$0.41		$0.40	$0.39	$0.21		'	'
Total Cash Distribution	$5,309		$5,180	$5,018	$2,673		$12,870	$946
Date of Distribution	17-Nov-14	[1]	18-Aug-14	16-May-14	18-Feb-14	[2]	'	'
Unitholders Record Date	10-Nov-14	[1]	11-Aug-14	9-May-14	10-Feb-14	[2]	'	'
[1]	Expected dates as of the filing date.
[2]	Initial pro rata cash distribution, prorated for the period from November 13, 2013 to December 31, 2013.

Partners_Capital_and_Distribut3

Partners' Capital and Distributions - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014
Limited Partners Capital Account [Line Items]	'
Cash distribution after period end of each quarter	'60 days
Common and subordinated units distribution	'Partnership expects to distribute to the holders of common and subordinated units on a quarterly basis at least the minimum quarterly distribution of $0.3875 per unit, or $1.55 per unit on an annualized basis
Annualized minimum quarterly distribution on each outstanding common and subordinated units	150.00%
Common and subordinated units for each three consecutive, non-overlapping four quarter periods	$2.33
Common and subordinated units on incentive distribution rights four-quarter period	$1.55
Conversion basis	'When the subordination period ends, all subordinated units will convert into common units on a one-for-one basis, and all common units thereafter will no longer be entitled to arrearages.
Common Units [Member]	'
Limited Partners Capital Account [Line Items]	'
Cash distribution received, per unit	$0.39
Subordinated Units [Member]	'
Limited Partners Capital Account [Line Items]	'
Cash distribution received, per unit	$0.39
All Unitholders [Member]	'
Limited Partners Capital Account [Line Items]	'
Cash distribution received, per unit	$0.45

Partners_Capital_and_Distribut4

Partners' Capital and Distributions - Percentage of Incentive Distribution Rights to Partnership's Unitholders and General Partner (Detail)	9 Months Ended
	Sep. 30, 2014
Above $0.3875 up to $0.4456 [Member] | Unitholders [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	100.00%
Above $0.3875 up to $0.4456 [Member] | General Partner [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	0.00%
Above $0.4456 up to $0.4844 [Member] | Unitholders [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	85.00%
Above $0.4456 up to $0.4844 [Member] | General Partner [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	15.00%
Above $0.4844 up to $0.5813 [Member] | Unitholders [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	75.00%
Above $0.4844 up to $0.5813 [Member] | General Partner [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	25.00%
Above $0.5813 [Member] | Unitholders [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	50.00%
Above $0.5813 [Member] | General Partner [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Marginal Percentage Interest in Distributions	50.00%

Partners_Capital_and_Distribut5

Partners' Capital and Distributions - Percentage of Incentive Distribution Rights to Partnership's Unitholders and General Partner (Parenthetical) (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014
Minimum [Member] | Above $0.3875 up to $0.4456 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.39
Minimum [Member] | Above $0.4456 up to $0.4844 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.45
Minimum [Member] | Above $0.4844 up to $0.5813 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.48
Minimum [Member] | Above $0.5813 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.58
Maximum [Member] | Above $0.3875 up to $0.4456 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.45
Maximum [Member] | Above $0.4456 up to $0.4844 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.48
Maximum [Member] | Above $0.4844 up to $0.5813 [Member]	'
Incentive Distribution Made To Managing Member Or General Partner [Line Items]	'
Cash distribution paid, per unit	$0.58

Equity_Plans_Additional_Inform

Equity Plans - Additional Information (Detail) (USD $)

1 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

Jul. 31, 2014

Sep. 30, 2014

Jul. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Jul. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Jul. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Jul. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Nov. 30, 2013

Phantom Units

Phantom Units

Phantom Units

Employee Equity Grants Vest One

Employee Equity Grants

Employee Equity Grants

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

2013 Long-Term Incentive Plan

Common Units [Member]

Directors Grant

Directors Grant

Other non-current liabilities

Selling, general and administrative

Selling, general and administrative

Directors Grant

Phantom Units

Cash

Employee Equity Grants

Employee Equity Grants Vest One

Employee Equity Grants Vest Two

Employee Equity Grants Vest Three

Employee Equity Grants

Employee Equity Grants

Employee Equity Grants

Directors Grant

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,000,000

Number of shares granted under the plan

'

'

939,500

'

'

'

'

'

'

'

'

100,000

'

1,000

832,000

'

'

'

7,500

'

'

'

Aggregate grant date fair value

'

'

'

'

'

'

'

'

'

'

'

'

$2,500,000

'

$21,200,000

'

'

'

$200,000

'

'

'

Vesting period

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unit-based compensation expense

'

'

'

200,000

200,000

'

1,300,000

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized unit-based compensation expense

'

'

'

2,400,000

2,400,000

19,900,000

'

'

'

'

'

'

'

'

'

'

'

'

200,000

'

'

'

Employee equity grants vest percentage

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

25.00%

25.00%

'

'

'

'

Employees grants vesting distribution per unit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.45

$0.48

$0.58

'

'

'

'

Unit-based compensation

'

1,426,000

'

'

'

'

'

'

100,000

1,400,000

1,400,000

'

'

'

'

'

'

'

200,000

100,000

100,000

'

Payments to phantom unit holders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

'

'

Reduction of partners capital

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$200,000

'

'

'

Equity_Plans_Summary_of_Phanto

Equity Plans - Summary of Phantom Units Granted (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014
Equity Award	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Number of Phantom Units, Beginning balance	0
Number of shares granted under the plan	932,000
Number of Phantom Units, Vested	0
Number of Phantom Units, Forfeited	-1,500
Number of Phantom Units, Ending balance	930,500
Balance at December 31, 2013	$0
Granted	$25.46
Vested	$0
Forfeited	$25.46
Balance at September 30, 2014	$25.46
Liability Award	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Number of Phantom Units, Beginning balance	0
Number of shares granted under the plan	7,500
Number of Phantom Units, Vested	0
Number of Phantom Units, Ending balance	7,500
Balance at December 31, 2013	$0
Granted	$25.46
Vested	$0
Balance at September 30, 2014	$25.46
Balance at December 31, 2013	$0
Granted	$25.15
Vested	$0
Forfeited	$0
Balance at September 30, 2014	$25.15

Earnings_Per_Unit_Schedule_of_

Earnings Per Unit - Schedule of Earnings Per Unit (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share Diluted [Line Items]	'	'	'	'
Net income	$1,636	$1,274	$6,239	$12,470
Less: Distribution equivalent rights for unissued units	211	'	417	'
Less: preferred unit distributions	'	600	'	1,546
Less: earnings attributable to preferred units	'	125	'	1,408
Net income available to limited partners	1,425	549	5,822	9,516
Numerator for basic and diluted earnings per limited partner unit:	'	'	'	'
Net income allocated to unitholders	1,425	549	5,822	9,516
Common Units [Member]	'	'	'	'
Numerator for basic and diluted earnings per limited partner unit:	'	'	'	'
Net income allocated to unitholders	756	7	3,088	125
Denominator for basic and diluted earnings per limited partner unit:	'	'	'	'
Total basic units outstanding	6,868	80	6,868	80
Earnings per limited partner unit:	'	'	'	'
Earnings per limited partner unit, basic and diluted	$0.11	$0.09	$0.45	$1.56
Subordinated Units [Member]	'	'	'	'
Numerator for basic and diluted earnings per limited partner unit:	'	'	'	'
Net income allocated to unitholders	$669	$542	$2,734	$9,391
Denominator for basic and diluted earnings per limited partner unit:	'	'	'	'
Total basic units outstanding	6,081	6,023	6,081	6,023
Earnings per limited partner unit:	'	'	'	'
Earnings per limited partner unit, basic and diluted	$0.11	$0.09	$0.45	$1.56

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Feb. 28, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Jan. 31, 2014

Jan. 31, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

31-May-13

31-May-11

Feb. 28, 2010

Sep. 30, 2014

bbl

bbl

Portland Terminal [Member]

Fifth Anniversary [Member]

Tenth Anniversary [Member]

Minimum [Member]

LCP Oregon Holdings LLC [Member]

Gulf Coast Asphalt Company, L.L.C. [Member]

Gulf Coast Asphalt Company, L.L.C. [Member]

Gulf LNG Holdings [Member]

Center Oil [Member]

Lightfoot Capital Partners LP [Member]

Lightfoot Capital Partners GP LLC [Member]

General Partner [Member]

General Partner [Member]

General Partner [Member]

General Partner [Member]

General Partner [Member]

Limited Partners [Member]

Limited Partners [Member]

Limited Partners [Member]

Limited Partners [Member]

Boe

Terminal

Center Oil [Member]

Center Oil [Member]

Center Oil [Member]

Center Oil [Member]

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Selling, general and administrative expenses-affiliate

$1,054,000

$624,000

$2,994,000

$1,842,000

'

'

'

'

'

'

'

'

'

'

'

'

$1,100,000

$600,000

$3,000,000

$1,800,000

'

'

'

'

'

Due to general partner

292,000

'

292,000

'

127,000

'

'

'

'

'

'

'

'

'

'

'

300,000

'

300,000

'

100,000

'

'

'

'

Registration rights agreement

'

'

'In connection with the IPO, the Partnership entered into a registration rights agreement with the Sponsor. Pursuant to the registration rights agreement, the Partnership is required to file a registration statement to register the common units issued to the Sponsor and the common units issuable upon the conversion of the subordinated units upon request of the Sponsor. In addition, the registration rights agreement gives the Sponsor piggyback registration rights under certain circumstances.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of LNG Interest from an affiliate

'

'

681,000

'

'

'

'

'

'

'

'

'

72,700,000

'

'

'

'

'

'

'

'

'

'

'

'

Partnership's Credit Facility

29,100,000

'

29,100,000

'

'

'

'

'

'

'

'

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash paid for Partnership acquired

'

'

'

'

'

'

'

'

'

'

25,000,000

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

Number of terminals acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

7

'

'

'

'

'

'

'

'

'

'

'

Partnership units issued on acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

750,000

Written notification for termination of agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'The term of the storage and throughput agreement extends through June 2017. The agreement will automatically renew for a period of three years at the expiration of the current term at an inflation adjusted rate (subject to a cap), as determined in accordance with the agreement, unless a party delivers a written notice of its election to terminate the storage and throughput agreement at least eighteen months prior to the expiration of the current term.

'

'

'

'

'

'

'

'

'

'

'

Agreement extension, month and year

'

'

'

'

'

'

'

'

'

'

'

'

'

'2017-06

'

'

'

'

'

'

'

'

'

'

'

Agreement renewal term

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

'

'

'

'1 year

'1 year

'

'

Valuation percentage of assets at the time of acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

Agreement renewal, month and year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2015-05

'2015-05

'

Number of barrels of storage tanks

'

'

'

'

'

'

'

'

'

'

150,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial term of agreement

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of investment in subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.60%

1.50%

'

'

'

'

'

'

'

'

'

Initial term of lease agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

'

'

'

'

Additional term for lease agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

Lease agreement rent expenses

'

'

230,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Lease agreement rent expenses for future period

'

'

417,522

'

'

65,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rent amount increase effective date

'

'

'2014-08

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Construction costs estimated

'

'

'

'

'

'

'

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Description of increase in base rent

'

'

'

'

'

'

'

'

'

'increased each month starting with the month of August 2014 by a factor of 0.00958 of the specified construction costs incurred by LCP Oregon Holdings LLC (bLCP Oregonb) at the Portland Terminal

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating leases, Rent expense increased

'

'

95,800

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating lease, additional spending

'

'

4,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of change in the consumer price index

'

'

'

'

'

'

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of barrels per day of oil equivalent

12,500

'

12,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of variable rate on base rent

'

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating lease agreement expense

1,200,000

'

2,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Lease agreement notice period

'

'

'

'

'

'So long as Arc Terminals Holdings is not in default under the Lease Agreement, it shall have the right to purchase the Portland Terminal at the end of the third year of the Lease Agreement and at the end of any month thereafter by delivery of 90 daysb notice (bPurchase Optionb). The purchase price shall be the greater of (i) nine times the total of base rent and variable rent for the 12 months immediately preceding the notice and (ii) $65.7 million.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating lease termination notice

'

'

'

'

'

'12 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating lease termination fee

'

'

'

'

'

'

$4,000,000

$6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related_Party_Transactions_Sch

Related Party Transactions - Schedule of Revenue from Related Parties (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Related Party Transaction [Line Items]	'	'	'	'
Related parties	$2,361	$1,848	$6,753	$5,869
Gulf Coast Asphalt Company, L.L.C. [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Related parties	464	92	1,390	253
Center Oil [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Related parties	$1,897	$1,756	$5,363	$5,616

Related_Party_Transactions_Sch1

Related Party Transactions - Schedule of Accounts Receivable due from Related Parties (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Notes Receivable Related Parties [Line Items]	'	'
Due from related parties	$825	$722
Gulf Coast Asphalt Company, L.L.C. [Member]	'	'
Notes Receivable Related Parties [Line Items]	'	'
Due from related parties	314	186
Center Oil [Member]	'	'
Notes Receivable Related Parties [Line Items]	'	'
Due from related parties	$511	$536

Major_Customers_Additional_Inf

Major Customers - Additional Information (Detail) (Minimum [Member], Sales Revenue, Net [Member])	9 Months Ended
	Sep. 30, 2014
Minimum [Member] | Sales Revenue, Net [Member]	'
Entity Wide Revenue Major Customer [Line Items]	'
Total percentages of revenue and receivables associated with significant customers	10.00%

Major_Customers_Schedules_of_P

Major Customers - Schedules of Percentages of Revenues and Receivables Associated with Significant Customers (Detail)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Revenues [Member]

Receivables [Member]

Receivables [Member]

Receivables [Member]

Receivables [Member]

Receivables [Member]

Receivables [Member]

Customer A [Member]

Customer A [Member]

Customer A [Member]

Customer A [Member]

Customer B [Member]

Customer B [Member]

Customer B [Member]

Customer B [Member]

Customer A [Member]

Customer A [Member]

Customer B [Member]

Customer B [Member]

Entity Wide Revenue Major Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total percentages of revenue and receivables associated with significant customers

37.00%

16.00%

32.00%

8.00%

23.00%

2.00%

19.00%

3.00%

14.00%

14.00%

13.00%

5.00%

51.00%

17.00%

42.00%

7.00%

9.00%

10.00%

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Apr. 30, 2014	Oct. 31, 2014	Sep. 30, 2014
			Gulf LNG Holdings [Member]	Gulf LNG Holdings [Member]	Gulf LNG Holdings [Member]	Gulf Coast Asphalt Company, L.L.C. [Member]
				Maximum [Member]	Subsequent Event [Member]	Customer
Operating Leased Assets [Line Items]	'	'	'	'	'	'
Accruals for environmental losses	$0	$0	'	'	'	'
Spending towards the development of natural gas liquefaction and export terminal	'	'	'	13,000,000	'	'
Capital call	'	'	10,000,000	'	'	'
Partnership pro-rata share	'	'	1,000,000	'	'	'
Partnership pro-rata share of remaining capital	'	'	800,000	'	500,000	'
Earnout payments, high	'	'	'	'	'	5,000,000
Earnout payments, low	'	'	'	'	'	$0
Number of customers	'	'	'	'	'	1

Commitments_and_Contingencies_2

Commitments and Contingencies - Schedule of Future Non-Cancelable Commitments Related to Certain Contractual Obligations (Detail) (USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified
Contractual Obligation Fiscal Year Maturity Schedule [Abstract]	'
Long-term debt obligations, Total	$108,063
Long-term debt obligations, 2018	108,063
Operating lease obligations, Total	31,708
Operating lease obligations, 2014	1,484
Operating lease obligations, 2015	6,436
Operating lease obligations, 2016	6,472
Operating lease obligations, 2017	6,342
Operating lease obligations, 2018	10,868
Operating lease obligations, thereafter	106
Contractual obligations, Total	139,771
Contractual obligations, 2014	1,484
Contractual obligations, 2015	6,436
Contractual obligations, 2016	6,472
Contractual obligations, 2017	6,342
Contractual obligations, 2018	118,931
Contractual obligations, thereafter	$106

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	3 Months Ended								1 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014		Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Jun. 30, 2014	Jun. 30, 2014	Oct. 31, 2014	Oct. 31, 2014	Oct. 31, 2014
							Quarterly Cash Distribution [Member]	Annual Cash Distribution [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
										Quarterly Cash Distribution [Member]	Annual Cash Distribution [Member]
Subsequent Event [Line Items]	'		'	'	'		'	'	'	'	'
Cash distribution, declaration month and year	'		'	'	'		'	'	'2014-10	'	'
Cash distribution, total amount	'		'	'	'		'	'	$5.30	'	'
Change in cash distribution percentage	'		'	'	'		'	'	2.50%	'	'
Total distribution per unit	$0.41		$0.40	$0.39	$0.21		$0.40	$1.60	'	$0.41	$1.64
Cash distribution payment date	17-Nov-14	[1]	18-Aug-14	16-May-14	18-Feb-14	[2]	'	'	17-Nov-14	'	'
Cash distribution date of record	10-Nov-14	[1]	11-Aug-14	9-May-14	10-Feb-14	[2]	'	'	10-Nov-14	'	'
[1]	Expected dates as of the filing date.
[2]	Initial pro rata cash distribution, prorated for the period from November 13, 2013 to December 31, 2013.