Description of business (Details)	9 Months Ended
	Sep. 30, 2017
Hoegh LNG Partners LP [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Marshall Islands
Purpose	Holding Company
Hoegh LNG Partners Operating LLC [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Marshall Islands
Purpose	Holding Company
Hoegh LNG Services Ltd [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	United Kingdom
Purpose	Administration Services Company
Hoegh LNG Lampung Pte. Ltd [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Singapore
Purpose	Owns 49% of PT Hoegh LNG Lampung
PT Hoegh LNG Lampung [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Indonesia	[1]
Purpose	Owns PGN FSRU Lampung	[1]
SRV Joint Gas Ltd [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cayman Islands	[2]
Purpose	Owns Neptune	[2]
SRV Joint Gas Two Ltd [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cayman Islands	[2]
Purpose	Owns GDF Suez Cape Ann	[2]
Hoegh LNG FRSU III Ltd [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cayman Islands	[3]
Purpose	Owns 100% of Hoegh LNG Cyprus Limited	[3]
Hoegh LNG Cyprus Limited [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cyprus	[3]
Purpose	Owns Höegh Gallant	[3]
Hoegh LNG Cyprus Limited Egypt Branch [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Egypt	[3]
Purpose	Branch of Hoegh LNG Cyprus Limited	[3]
Hoegh LNG Colombia Holding Ltd. [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cayman Islands	[4]
Purpose	Owns 100% of Höegh LNG FSRU IV Ltd. and Höegh LNG Colombia S.A.S.	[4]
Hoegh LNG FSRU IV Ltd. [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Cayman Islands	[4]
Purpose	Owns Höegh Grace	[4]
Hoegh LNG Colombia S.A.S. [Member]
Condensed Financial Statements, Captions [Line Items]
Jurisdiction of Incorporation or Registration	Colombia	[4]
Purpose	Operating Company	[4]

[1] PT Hoegh LNG Lampung is a variable interest entity, which is controlled by Hoegh LNG Lampung Pte. Ltd. and is, therefore, 100% consolidated in the consolidated financial statements.

[2] The remaining 50% interest in each joint venture is owned by Mitsui O.S.K. Lines, Ltd. and Tokyo LNG Tanker Co.

[3] The ownership interests were acquired on October 1, 2015.

[4] The 51% ownership interests were acquired on January 3, 2017. Refer to note 4.