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Net Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 12, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Net Income Per Unit [Line Items] |  |  |  |  |
Net income attributable to partners |  | $ 43,246 | $ 44,415 | $ 79,513 | $ 72,211
Less: Partners' distribution |  | 40,846 | 26,490 | 80,814 | 48,229
Allocation of earnings in excess (deficit) of distributions |  | $ 2,400 | $ 8,446 | $ (1,301) | $ 5,364
Footnote [Abstract] |  |  |  |  |
Common Units Excluded From Computation Of Earnings Per Unit, Units |  | 3,662 | 18,270 | 1,841 | 18,270
Common Units |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Common units - (basic) (in shares) |  | 43,445,222 | 29,427,298 | 43,444,284 | 26,953,934
Common units - (diluted) (in shares) |  | 43,460,366 | 29,430,555 | 43,453,806 | 26,956,523
Common units - (basic) (in dollars per share) |  | $ 1.00 | $ 1.18 | $ 1.83 | $ 1.98
Common units - (diluted) (in dollars per share) |  | $ 1.00 | $ 1.18 | $ 1.83 | $ 1.98
General Partner |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Net income attributable to partners |  |  | $ 9,647 |  | $ 18,724
Less: General partner's distribution (including IDRs) |  | $ 0 | 9,479 | $ 0 | 18,618
Allocation of earnings in excess (deficit) of distributions |  | 0 | 168 | 0 | 106
Total partner's earnings |  | 0 | 9,647 | 0 | 18,724
Common unitholders |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Less: Partners' distribution |  | 40,846 | 26,490 | 80,814 | 48,229
Allocation of earnings in excess (deficit) of distributions |  | 2,400 | 8,278 | (1,301) | 5,258
Common unitholders | Common Units |  |  |  |  |
Net Income Per Unit [Line Items] |  |  |  |  |
Total partner's earnings |  | $ 43,246 | $ 34,768 | $ 79,513 | $ 53,487
Common units - (basic) (in shares) |  | 43,445,222 | 29,427,298 | 43,444,284 | 26,953,934
Common units - (diluted) (in shares) |  | 43,460,366 | 29,430,555 | 43,453,806 | 26,956,523
Common units - (basic) (in dollars per share) |  | $ 1.00 | $ 1.18 | $ 1.83 | $ 1.98
Common units - (diluted) (in dollars per share) |  | $ 1.00 | $ 1.18 | 1.83 | $ 1.98
Maximum |  |  |  |  |
Footnote [Abstract] |  |  |  |  |
Distribution Payment Targets |  |  |  | $ 0.43125 |
General Partnership |  |  |  |  |
Footnote [Abstract] |  |  |  |  |
General partner's ownership interest (as percent) | 2.00% | 0.00% | 2.00% | 0.00% | 2.00%

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