Net Income Per Limited Partner Unit - Reconciliation of Net Income and Weighted-Average Units Used in Computing Basic and Diluted Net Income Per Limited Partner Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Numerator:
Distributions paid	$ 18,111	$ 18,099
Allocation of distributions in excess of net income	53,817	(18,020)
Limited partners’ interest in net income - basic and diluted	$ 71,928	$ 79
Denominator:
Weighted-average limited partnership units outstanding - basic	35,994,972	34,444,113
Adjustment for phantom and phantom performance units	961	12,352
Weighted-average limited partnership units outstanding - diluted	35,995,933	34,456,465
Net income per limited partnership unit - basic and diluted	$ 2.00	$ 0.00
Distributions paid per common unit	0.5250	0.5250
Distributions declared (with respect to each respective period) per common unit	$ 0.5250	$ 0.5250

Net Income Per Limited Partner Unit - Reconciliation of Net Income and Weighted-Average Units Used in Computing Basic and Diluted Net Income Per Limited Partner Unit (Details) - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

Mar. 31, 2020

Mar. 31, 2019

Numerator:

Distributions paid

$ 18,111

$ 18,099

Allocation of distributions in excess of net income

53,817

(18,020)

Limited partners’ interest in net income - basic and diluted

$ 71,928