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Net Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 12, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Net Income Per Unit [Line Items] |  |  |  |  |
Net income attributable to partners |  | $ 43,624 | $ 46,328 | $ 123,137 | $ 118,539
Less: Partners' distribution |  | 41,286 | 39,307 | 122,100 | 87,536
Allocation of earnings in excess (deficit) of distributions |  | $ 2,338 | $ 7,021 | $ 1,037 | $ 12,385
Footnote [Abstract] |  |  |  |  |
Common Units Excluded From Computation Of Earnings Per Unit, Units |  |  |  | 0 |
Common Units |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Common units - (basic) (in shares) |  | 43,454,535 | 36,889,761 | 43,447,739 | 30,290,051
Common units - (diluted) (in shares) |  | 43,468,289 | 36,894,043 | 43,457,857 | 30,292,261
Common units - (basic) (in dollars per share) |  | $ 1.00 | $ 1.26 | $ 2.83 | $ 3.30
Common units - (diluted) (in dollars per share) |  | $ 1.00 | $ 1.26 | $ 2.83 | $ 3.30
General Partner |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Net income attributable to partners |  |  | $ 0 |  | $ 18,725
Less: General partner's distribution (including IDRs) |  | $ 0 | 0 | $ 0 | 18,618
Allocation of earnings in excess (deficit) of distributions |  | 0 | 0 | 0 | 106
Total partner's earnings |  | 0 | 0 | 0 | 18,724
Common unitholders |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Less: Partners' distribution |  | 41,286 | 39,307 | 122,100 | 87,536
Allocation of earnings in excess (deficit) of distributions |  | 2,338 | 7,021 | 1,037 | 12,279
Common unitholders | Common Units |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Total partner's earnings |  | $ 43,624 | $ 46,328 | $ 123,137 | $ 99,815
Common units - (basic) (in shares) |  | 43,454,535 | 36,889,761 | 43,447,739 | 30,290,051
Common units - (diluted) (in shares) |  | 43,468,289 | 36,894,043 | 43,457,857 | 30,292,261
Common units - (basic) (in dollars per share) |  | $ 1.00 | $ 1.26 | $ 2.83 | $ 3.30
Common units - (diluted) (in dollars per share) |  | $ 1.00 | $ 1.26 | 2.83 | $ 3.30
Maximum |  |  |  |  |
Footnote [Abstract] |  |  |  |  |
Distribution Payment Targets |  |  |  | $ 0.43125 |
General Partnership |  |  |  |  |
Footnote [Abstract] |  |  |  |  |
General partner's ownership interest (as percent) | 2.00% | 0.00% | 0.00% | 0.00% | 2.00%

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