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Net Income (Loss) Per Limited Partner Unit (Tables)
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
A Reconciliation Of Net Income And Weighted Average Units Used In Computing Basic And Diluted Net Income Per Unit
A reconciliation of net income and weighted average units used in computing basic and diluted net income (loss) per unit is as follows:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2011
 
2010
 
2011
 
2010
Net income attributable to partners
$
66,765

 
$
107,387

 
$
462,195

 
$
390,341

General Partner’s interest in net income
104,810

 
97,046

 
318,241

 
287,644

Limited Partners’ interest in net (loss) income
(38,045
)
 
10,341

 
143,954

 
102,697

Additional earnings allocated from General Partner
9

 
161

 
572

 
790

Distributions on employee unit awards, net of allocation to General Partner
(1,894
)
 
(1,142
)
 
(5,619
)
 
(3,451
)
Net (loss) income available to Limited Partners
$
(39,930
)
 
$
9,360

 
$
138,907

 
$
100,036

Weighted average Limited Partner units — basic
209,151,808

 
185,247,021

 
203,918,940

 
186,761,917

Basic net (loss) income per Limited Partner unit
$
(0.19
)
 
$
0.05

 
$
0.68

 
$
0.54

Weighted average Limited Partner units
209,151,808

 
185,247,021

 
203,918,940

 
186,761,917

Dilutive effect of unvested Unit Awards
—

 
967,664

 
1,166,830

 
946,766

Weighted average Limited Partner units, assuming dilutive effect of unvested Unit Awards
209,151,808

 
186,214,685

 
205,085,770

 
187,708,683

Diluted net (loss) income per Limited Partner unit
$
(0.19
)
 
$
0.05

 
$
0.68

 
$
0.53