Quarterly Financial Data (Notes)
 12 Months Ended
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Financial Information [Text Block]
Quarterly Financial Data (Unaudited)

Summarized unaudited quarterly financial data for 2014 and 2013 are as follows (in thousands, except per unit amounts):
 
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter (b)
Year Ended December 31, 2014
 
 
 
 
 
 
 
Total revenues
$
80,238

 
$
77,680

 
$
70,305

 
$
80,177

Gross margin (a)
23,081

 
22,167

 
21,332

 
36,227

Operating income (loss)
2,450

 
734

 
(290
)
 
(91,633
)
Net income (loss) from continuing operations
558

 
(1,095
)
 
(2,397
)
 
(94,261
)
Income (loss) from operations of disposal groups
(50
)
 
(506
)
 
(26
)
 
(29
)
Net income (loss) attributable to noncontrolling interest
108

 
66

 
33

 
7

Net income (loss) attributable to the Partnership
400

 
(1,667
)
 
(2,456
)
 
(94,297
)
General Partner's Interest in net income (loss)
7

 
(22
)
 
(32
)
 
(1,232
)
Limited Partners' Interest in net income (loss)
$
393

 
$
(1,645
)
 
$
(2,424
)
 
$
(93,065
)
 
 
 
 
 
 
 
 
Limited Partners' income (loss) per unit:
 
 
 
 
 
 
 
Income (loss) from continuing operations
$
(0.31
)
 
$
(0.55
)
 
$
(0.58
)
 
$
(4.98
)
Income (loss) from discontinued operations
(0.01
)
 
(0.04
)
 
—

 
—

Net income (loss)
$
(0.32
)
 
$
(0.59
)
 
$
(0.58
)
 
$
(4.98
)
Year Ended December 31, 2013
 
 
 
 
 
 
 
Total revenues
$
62,599

 
$
77,191

 
$
77,519

 
$
76,770

Gross margin (a)
12,705

 
18,317

 
20,908

 
22,891

Operating income (loss)
(1,661
)
 
(17,841
)
 
(104
)
 
(2,591
)
Net income (loss) from continuing operations
(3,392
)
 
(20,057
)
 
(2,526
)
 
(5,018
)
Income (loss) from operations of disposal groups
(6
)
 
(1,869
)
 
(15
)
 
(523
)
Net income (loss) attributable to noncontrolling interest
155

 
188

 
190

 
100

Net income (loss) attributable to the Partnership
(3,553
)
 
(22,114
)
 
(2,731
)
 
(5,641
)
General Partner's Interest in net income (loss)
(70
)
 
(905
)
 
(221
)
 
(209
)
Limited Partners' Interest in net income (loss)
$
(3,482
)
 
$
(21,209
)
 
$
(2,510
)
 
$
(5,433
)
 
 
 
 
 
 
 
 
Limited Partners' income (loss) per unit:
 
 
 
 
 
 
 
Income (loss) from continuing operations
$
(0.39
)
 
$
(4.01
)
 
$
(0.81
)
 
$
(1.43
)
Income (loss) from discontinued operations
0.01

 
(0.20
)
 
0.01

 
—

Net income (loss)
$
(0.38
)
 
$
(4.21
)
 
$
(0.80
)
 
$
(1.43
)
 
(a)
For a definition of gross margin and a reconciliation to its most directly comparable financial measure calculated and presented in accordance with GAAP and a discussion of how we use gross margin to evaluate our operating performance, please read Item 7. "Management's Discussion and Analysis, How We Evaluate Our Operations."
(b)
The Partnership record an immaterial out-of-period adjustment in the fourth quarter of 2014 to account for the items associated with the material weakness described in Item 9A.  Management’s Annual Report over Internal Control over Financial Reporting.