Earnings Per Unit (Tables)
12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Summary of Weighted Average Common Units Outstanding
The table below shows the weighted average common units outstanding used to compute net income per common unit for the periods indicated.
 
Years Ended December 31,
 
2016
 
2015
 
2014
Weighted average limited partner common units - basic
11,202,427

 
10,975,941

 
10,131,928

Dilutive effect of unvested restricted and phantom units
358,190

 
165,392

 
63,638

Weighted average limited partner common units - dilutive
11,560,617

 
11,141,333

 
10,195,566

Schedule of Partnership's Basic Earnings (Loss) Per Common and Subordinated Unit
The following tables provide a reconciliation of net income and the assumed allocation of net income to the limited partners' interest for purposes of computing net income per unit for the periods presented.
 
Year Ended December 31, 2016
 
Common
 
Subordinated
 
IDR
 
Total
 
(in thousands, except per unit amounts)
Net income
 
 
 
 
 
 
$
10,166

Distributions declared
$
24,998

 
$
22,358

 
$
1,742

 
$
49,098

Assumed net loss from operations after distributions
(20,562
)
 
(18,370
)
 

 
(38,932
)
Assumed net income to be allocated
$
4,436

 
$
3,988

 
$
1,742

 
$
10,166

Income per unit - basic
$
0.40

 
$
0.40

 
 
 
 
Income per unit - diluted
$
0.38

 
$
0.40

 
 
 
 
 
Year Ended December 31, 2015
 
Common
 
Subordinated
 
IDR
 
Total
 
(in thousands, except per unit amounts)
Net income
 
 
 
 
 
 
$
78,348

Distributions declared
$
21,826

 
$
19,943

 
$
321

 
$
42,090

Assumed net income from operations after distributions
18,863

 
17,395

 

 
36,258

Assumed net income to be allocated
$
40,689

 
$
37,338

 
$
321

 
$
78,348

Income per unit - basic
$
3.71

 
$
3.71

 
 
 
 
Income per unit - diluted
$
3.65

 
$
3.71

 
 
 
 

 
Year Ended December 31, 2014
 
Common
 
Subordinated
 
IDR
 
Total
 
(in thousands, except per unit amounts)
Net income
 
 
 
 
 
 
$
122,814

Income attributable to Kildair (Note 2)
 
 
 
 
 
 
(4,080
)
Limited partners' interest in net income
 
 
 
 
 
 
$
118,734

Distributions declared
$
17,964

 
$
17,526

 
$

 
$
35,490

Assumed net income from operations after distributions
41,579

 
41,665

 

 
83,244

Assumed net income to be allocated
$
59,543

 
$
59,191

 
$

 
$
118,734

Income per unit - basic
$
5.88

 
$
5.88

 
 
 
 
Income per unit - diluted
$
5.84

 
$
5.88