Consolidated Statements of Equity and Comprehensive Income - USD ($) $ in Thousands	Total	Common units-public	Incentive Distributions Rights [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2017	$ 171,019	$ 171,337		$ (318)
Balance, Common Units at Dec. 31, 2017		34,111,461
Issuance of units to Circle K for the payment of fees under the Amended Omnibus Agreement	$ 3,218	$ 3,218
Issuance of units to Circle K for the payment of fees under the Amended Omnibus Agreement, Units	155,236	136,882
Net (loss) income and comprehensive (loss) income	$ (807)	$ (1,985)	$ 1,180	(2)
Distributions paid	(22,613)	(21,415)	(1,180)	(18)
Balance at Mar. 31, 2018	150,817	$ 151,155		$ (338)
Balance, Common Units at Mar. 31, 2018		34,248,343
Balance at Dec. 31, 2018	110,933	$ 110,933
Balance, Common Units at Dec. 31, 2018		34,444,113
Transition adjustment upon adoption of ASC 842, net of tax	28,896	$ 28,896
Net (loss) income and comprehensive (loss) income	212	79	133
Distributions paid	(18,232)	(18,099)	$ (133)
Balance at Mar. 31, 2019	$ 121,809	$ 121,809
Balance, Common Units at Mar. 31, 2019		34,444,113