Organization and Operations of the Company - Additional Information (Detail)			1 Months Ended		6 Months Ended		27 Months Ended
	Jun. 11, 2013 USD ($) shares	Feb. 25, 2013 USD ($)	Mar. 31, 2017 USD ($)	May 31, 2012 USD ($) shares	Jun. 30, 2019 USD ($) Employee shares	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Employee
Organization And Nature Of Operations [Line Items]
Shares purchased under equity transaction | shares					625,858
Offering period, description					The primary offering terminated on March 31, 2017.
Additional gross proceeds					$ 453,057,000
Class A Units [Member]
Organization And Nature Of Operations [Line Items]
Aggregate gross proceeds on units purchased					$ 2,224,545	$ 2,667,741
Shares purchased under equity transaction | shares					269,793
Offering [Member]
Organization And Nature Of Operations [Line Items]
Aggregate gross proceeds on units purchased		$ 1,500,000,000
Private Placement [Member]
Organization And Nature Of Operations [Line Items]
Additional gross proceeds							$ 67,741,000
Distribution Reinvestment Plan [Member]
Organization And Nature Of Operations [Line Items]
Shares purchased under equity transaction | shares					576,158
Aggregate gross proceeds on units purchased					$ 4,750,744
Additional gross proceeds							$ 23,540,000
Termination of Primary Offering [Member]
Organization And Nature Of Operations [Line Items]
Aggregate gross proceeds on units purchased			$ 361,776,000
Termination of Primary Offering [Member] | Distribution Reinvestment Plan [Member]
Organization And Nature Of Operations [Line Items]
Aggregate gross proceeds on units purchased			$ 13,338,000
TriLinc Advisors, LLC [Member] | Class A Units [Member]
Organization And Nature Of Operations [Line Items]
Aggregate gross proceeds on units purchased				$ 200,000
Shares purchased under equity transaction | shares				22,161
TriLinc Global, LLC [Member]
Organization And Nature Of Operations [Line Items]
Formation date of limited liability company					Apr. 30, 2012
Primary offering termination date					Mar. 31, 2017
TriLinc Global, LLC [Member] | Class A Units [Member]
Organization And Nature Of Operations [Line Items]
Shares purchased under equity transaction | shares	321,330
Aggregate gross proceeds on units purchased	$ 2,900,000
TriLinc Global, LLC [Member] | TriLinc Advisors, LLC [Member]
Organization And Nature Of Operations [Line Items]
Percentage of ownership					85.00%
TriLinc Global, LLC [Member] | Maximum [Member]
Organization And Nature Of Operations [Line Items]
Number of employees for investments in SMEs | Employee					500		500
TriLinc Global, LLC [Member] | Minimum [Member] | Class A Units [Member]
Organization And Nature Of Operations [Line Items]
Minimum offering requirement	$ 2,000,000
Strategic Capital Advisory Services, LLC [Member] | TriLinc Advisors, LLC [Member]
Organization And Nature Of Operations [Line Items]
Percentage of ownership					15.00%