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Quarterly Financial Information (Tables)
 12 Months Ended
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information
Consolidated Quarterly Income Statement Information
 
 
(Unaudited)
 
 
 
First Quarter
 
Second Quarter
 
Third Quarter
 
Fourth
Quarter
 
 
 
(Dollar in thousands, except per unit amounts)
 
2014
 
 
 
 
 
 
 
 
 
Revenues
$
484,809

 
$
403,261

 
$
377,088

 
$
376,983

 
Operating income
24,499

 
17,997

 
13,181

 
12,194

 
Equity in earnings (loss) of unconsolidated entities
(297
)
 
1,939

 
2,655

 
1,169

 
Income (loss) from continuing operations
12,384

 
324

 
(25,739
)
(A)
6,664

 
Loss from discontinued operations
(589
)
 
(1,292
)
 
(1,167
)
 
(2,290
)
 
Net income (loss)
$
11,795

 
$
(968
)
 
$
(26,906
)
 
$
4,374

 
Limited partners' interest in net income (loss) per limited partner unit
$
0.43

 
$
(0.03
)
 
$
(0.82
)
 
$
(0.07
)
 
 
 
 
 
 
 
 
 
 
 
 
 
First Quarter
 
Second Quarter
 
Third Quarter
 
Fourth
Quarter
 
 
 
(Dollar in thousands, except per unit amounts)
 
2013
 
 
 
 
 
 
 
 
 
Revenues
$
433,356

 
$
356,673

 
$
355,578

 
$
467,132

 
Operating income
26,189

 
19,166

 
12,680

 
23,429

 
Equity in earnings (loss) of unconsolidated entities
(374
)
 
72

 
(577
)
 
(52,169
)
(B)
Income (loss) from continuing operations
16,440

 
7,985

 
628

 
(39,615
)
 
Income (loss) from discontinued operations
196

 
1,093

 
(437
)
 
356

 
Net income (loss)
$
16,636

 
$
9,078

 
$
191

 
$
(39,259
)
 
Limited partners' interest in net income (loss) per limited partner unit
$
0.61

 
$
0.33

 
$
0.01

 
$
(1.44
)