CONSOLIDATED STATEMENTS OF OPERATIONS - (Allocation of Net Income) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Limited partner interest:
Continuing operations	$ (7,438)	$ 12,715	$ 19,744
Discontinued operations	50,633	4,035	3,399
Limited partner's interest in net income	43,195	16,750	23,143
General partner interest:
Continuing operations	(152)	260	7,182
Discontinued operations	1,034	83	1,237
Net income allocated to general partners	$ 882	$ 343	$ 8,419
Basic:
Continuing operations (in dollars per share)	$ (0.19)	$ 0.33	$ 0.55
Discontinued operations (in dollars per share)	1.30	0.11	0.10
Net Income, Basic (in dollars per share)	$ 1.11	$ 0.44	$ 0.65
Weighted average limited partner units - basic (in shares)	38,907,000	38,101,583	35,347,032
Diluted:
Continuing operations (in dollars per share)	$ (0.19)	$ 0.33	$ 0.55
Discontinued operations (in dollars per share)	1.30	0.11	0.10
Net Income, Diluted (in dollars per share)	$ 1.11	$ 0.44	$ 0.65
Weighted average limited partner units - diluted (in shares)	38,922,678	38,164,901	35,375,263