Summary of Significant Accounting Policies - Additional Information (Detail)		1 Months Ended		12 Months Ended			20 Months Ended
	May 31, 2015 USD ($)	May 31, 2015 USD ($)	Nov. 30, 2013 USD ($)	Dec. 31, 2016 USD ($) Location Segment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 USD ($)
Schedule Of Accounting Policies [Line Items]
Uncollectible reserves				$ 0	$ 0		$ 0
Number of terminal locations | Location				2
Impairment charges				$ 0	$ 0	$ 6,114,000
Percentage of reporting unit fair value in excess of carrying value				11.00%	9.00%		11.00%
Goodwill impairments				$ 0	$ 0
Capitalized debt issuance cost				3,000,000	3,900,000		$ 3,000,000
Purchase of LNG Interest from an affiliate				0	361,000	1,197,000
Uncertain tax positions, current				0	0		0
Reported earn-out payments				1,373,000	870,000	0
Non-cash loss on the revaluation of the earn-out liability				$ 1,000,000
Number of reportable segment | Segment				1
Distributions to noncontrolling interest holders				$ 10,600,000	6,000,000	0
Other Non-current Liabilities [Member]
Schedule Of Accounting Policies [Line Items]
Deferred rent expense, noncurrent				3,500,000	3,200,000		3,500,000
Gulf LNG Holdings Group, LLC Acquisition [Member]
Schedule Of Accounting Policies [Line Items]
Purchase of LNG Interest from an affiliate			$ 72,700,000
Joliet Terminal Acquisition [Member] | Earn Out Obligation [Member]
Schedule Of Accounting Policies [Line Items]
Fair value of contingent consideration obligation				18,000,000	18,800,000		18,000,000
JBBR Acquisition [Member]
Schedule Of Accounting Policies [Line Items]
Fair value of contingent consideration obligation	$ 19,700,000	$ 19,700,000		18,000,000	18,830,000	0	18,000,000
Cash paid to seller		216,000,000		216,000,000
Initial Valuation	19,700,000				19,700,000
Earn-out payments	$ 27,000,000	$ 27,000,000		27,000,000			27,000,000
Reported earn-out payments				1,873,000	870,000		2,700,000
Non-cash loss on the revaluation of the earn-out liability				1,043,000	0
JBBR Acquisition [Member] | Revenue Estimates [Member]
Schedule Of Accounting Policies [Line Items]
Fair value of contingent consideration obligation				$ 18,000,000	18,800,000		$ 18,000,000
Property, Plant and Equipment, Net [Member]
Schedule Of Accounting Policies [Line Items]
Undivided ownership interest on assets				50.00%
Percentage of aggregate fair value of assets at the time of acquisition				50.00%			50.00%
Capitalized interest				$ 700,000	300,000
Maximum [Member]
Schedule Of Accounting Policies [Line Items]
Partnership wrote off uncollectible receivables				$ 100,000	$ 100,000	$ 100,000
Maximum [Member] | Joliet Terminal Acquisition [Member] | Earn Out Obligation [Member]
Schedule Of Accounting Policies [Line Items]
Discount rates				8.50%
Maximum [Member] | JBBR Acquisition [Member] | Revenue Estimates [Member]
Schedule Of Accounting Policies [Line Items]
Discount rates				8.50%
Minimum [Member] | Joliet Terminal Acquisition [Member] | Earn Out Obligation [Member]
Schedule Of Accounting Policies [Line Items]
Discount rates				7.20%
Minimum [Member] | JBBR Acquisition [Member] | Revenue Estimates [Member]
Schedule Of Accounting Policies [Line Items]
Discount rates				7.20%