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Income (Loss) Per Limited Partner Unit
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Income (Loss) Per Limited Partner Unit
Income (Loss) per Common Unit
The following tables provide a reconciliation of the numerator and denominator of the basic and diluted earnings per common unit computations for the three and nine months ended September 30, 2013 and 2012:
 
Three Months Ended September 30,
 
2013
 
2012
 
Income
(Numerator)
 
Units
(Denominator)
 
Per-Unit
Amount
 
Income
(Numerator)
 
Units
(Denominator)
 
Per-Unit
Amount
Basic income (loss) per unit
 
 
 
 
 
 
 
 
 
 
 
Amounts allocated to common units
$
33

 
209,559,854

 
$
0.16

 
$
(6
)
 
170,264,621

 
$
(0.04
)
Effect of Dilutive Securities:
 
 
 
 
 
 
 
 
 
 
 
Common unit options
—

 
32,489

 
 
 
—

 
—

 
 
Phantom units *
—

 
435,606

 
 
 
—

 
—

 
 
Series A preferred units
(23
)
 
2,047,571

 
 
 
—

 
—

 
 
Diluted income (loss) per unit
$
10

 
212,075,520

 
$
0.05

 
$
(6
)
 
170,264,621

 
$
(0.04
)
 
Nine Months Ended September 30,
 
2013
 
2012
 
Income
(Numerator)
 
Units
(Denominator)
 
Per-Unit
Amount
 
Income
(Numerator)
 
Units
(Denominator)
 
Per-Unit
Amount
Basic income per unit
 
 
 
 
 
 
 
 
 
 
 
Amounts allocated to common units
$
40

 
191,334,032

 
$
0.21

 
$
41

 
166,368,178

 
$
0.25

Effect of Dilutive Securities:
 
 
 
 
 
 
 
 
 
 
 
Common unit options
—

 
23,931

 
 
 
—

 
13,113

 
 
Phantom units *
—

 
351,811

 
 
 
—

 
320,452

 
 
Series A preferred units
—

 
—

 
 
 
(3
)
 
4,651,884

 
 
Diluted income per unit
$
40

 
191,709,774

 
$
0.21

 
$
38

 
171,353,627

 
$
0.22



*
Amount assumes maximum conversion rate for market condition awards.
The following data show securities that could potentially dilute earnings per unit in the future that were not included in the computation of diluted earnings per unit because to do so would have been antidilutive for the periods presented:
 
Nine Months Ended September 30, 2013
 
Three Months Ended September 30, 2012
Common unit options
—

 
9,147

Phantom units
—

 
313,378

Series A preferred units
2,047,571

 
4,651,884