Net Income Per Limited Partner Unit (Tables)
9 Months Ended
Sep. 30, 2016
Net Income Per Limited Partner Unit [Abstract]  
Schedule Of Net Income Per Limited Partner Unit
Three Months Ended September 30, 2016
(in millions, except per unit data)
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to partners
 
 
 
 
 
 
 
Distribution
$
10.6

 
$
9.3

 
$
0.1

 
$
20

Distribution in excess of net income
(7.7
)
 
(9.3
)
 
(0.1
)
 
(17.1
)
Net income attributable to partners
$
2.9

 
$

 
$

 
$
2.9

 
 
 
 
 
 
 
 
Weighted average limited partner units outstanding
 
 
 
 
 
 
 
Basic and diluted
53.8

 
46.8

 
 
 
100.6

Net income attributable to partners' ownership interest per limited partner unit
 
 
 
 
 
 
 
Basic and diluted
$
0.05

 
$

 
 
 
$
0.03

 
 
 
 
 
 
 
 
Nine Months Ended September 30, 2016
(in millions, except per unit data)
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to partners
 
 
 
 
 
 
 
Distribution
$
31.3

 
$
27.4

 
$
0.1

 
$
58.8

Distribution in excess of net income
(5.4
)
 
(7.3
)
 
2.2

 
(10.5
)
Net income attributable to partners
$
25.9

 
$
20.1

 
$
2.3

 
$
48.3

 
 
 
 
 
 
 
 
Weighted average limited partner units outstanding
 
 
 
 
 
 
 
Basic and diluted
53.8

 
46.8

 
 
 
100.6

Net income attributable to partners' ownership interest per limited partner unit
 
 
 
 
 
 
 
Basic and diluted
$
0.48

 
$
0.43

 
 
 
$
0.46

Three Months Ended September 30, 2015
(in millions, except per unit data)
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to partners
 
 
 
 
 
 
 
Distribution
$
9.3

 
$
8.1

 
$

 
$
17.4

Net income in excess of distribution
2.5

 
2.1

 

 
4.6

Net income attributable to partners
$
11.8

 
$
10.2

 
$

 
$
22.0

 
 
 
 
 
 
 
 
Weighted average limited partner units outstanding
 
 
 
 
 
 
 
Basic and diluted
53.8

 
46.8

 
 
 
100.6

Net income attributable to partners' ownership interest per limited partner unit
 
 
 
 
 
 
 
Basic and diluted
$
0.22

 
$
0.22

 
 
 
$
0.22

 
 
 
 
 
 
 
 
Nine Months Ended September 30, 2015
(in millions, except per unit data)
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to partners
 
 
 
 
 
 
 
Distribution
$
23.2

 
$
20.3

 
$

 
$
43.5

Net income in excess of distribution(1)
4.7

 
3.4

 

 
8.1

Net income attributable to partners
$
27.9

 
$
23.7

 
$

 
$
51.6

 
 
 
 
 
 
 
 
Weighted average limited partner units outstanding
 
 
 
 
 
 
 
Basic and diluted
53.8

 
46.8

 
 
 
100.6

Net income attributable to partners' ownership interest subsequent to IPO per limited partner unit
 
 
 
 
 
 
 
Basic and diluted
$
0.52

 
$
0.51

 
 
 
$
0.51

 (1) Net income attributable to partners and in excess of distribution is for the period subsequent to the IPO.