Net Income Per Limited Partner Unit - Schedule of Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended
May 13, 2021	Feb. 11, 2021	May 14, 2020	Feb. 13, 2020	Mar. 31, 2021	Mar. 31, 2020
Distribution Made to Limited Partner [Line Items]
Partner distributions declared	$ 37,600	$ 37,600	$ 37,600	$ 37,600	$ 37,600	$ 37,600
Dividends declared per share (in dollars per share)	$ 0.3475	$ 0.3475	$ 0.3475	$ 0.3475
General Partner
Distribution Made to Limited Partner [Line Items]
Partner distributions declared	$ 1,200	$ 1,200	$ 1,200	$ 1,200	1,200	1,200
Limited Partners Common Units
Distribution Made to Limited Partner [Line Items]
Partner distributions declared	36,400	18,200	18,200	18,200	36,400	18,200
Limited Partners Subordinated Units
Distribution Made to Limited Partner [Line Items]
Partner distributions declared	$ 0	$ 18,200	$ 18,200	$ 18,200	$ 0	$ 18,200

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
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