| In millions, except per share items | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 | Dec-31-20 | Sep-30-20 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Revenues: | | | | | | | | |
| Revenues | 104.4 | 103.5 | 99.8 | 96.6 | 101.1 | 98.8 | 109.2 | 96.5 |
| Revenues growth | 3.2% | 4.7% | -8.6% | 0.0% | 14.0% | -23.6% | -12.8% | -16.4% |
| Costs and expenses: | | | | | | | | |
| Direct operating expenses | 21.2 | 21.6 | 21.8 | 22.3 | 26.3 | 32.5 | 30.0 | 31.2 |
| Cost of goods sold (exclusive of depreciation and amortization) | 20.1 | 15.2 | 13.4 | 11.0 | 10.3 | 8.8 | 11.0 | 6.7 |
| Real estate operating expenses | 0.6 | 0.5 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 |
| Depreciation, amortization and accretion | 15.1 | 20.7 | 11.3 | 11.4 | 15.2 | 11.2 | 17.5 | 11.0 |
| Impairment and abandonments | 0.2 | 1.1 | | | | 3.4 | | |
| General and administrative expenses | 6.4 | 5.3 | 6.7 | 5.3 | 5.0 | 4.6 | 4.5 | 3.1 |
| (Gain) loss on disposal of assets | 1.2 | -0.1 | -1.2 | 1.1 | 5.0 | 0.0 | -3.5 | 0.0 |
| Total costs and expenses | 64.8 | 64.4 | 52.6 | 51.8 | 62.3 | 61.1 | 61.0 | 52.4 |
| Income (loss) from operations | 39.6 | 39.1 | 47.3 | 44.8 | 38.8 | 37.7 | 48.2 | 44.1 |
| Operating margin | 37.9% | 37.8% | 47.4% | 46.4% | 38.4% | 38.2% | 44.2% | 45.7% |
| |
| Other income (expense): | | | | | | | | |
| Interest income (expense), net | -9.1 | -8.7 | -8.4 | -8.2 | -8.2 | -7.3 | -6.9 | -5.8 |
| Gain (loss) on sale of equity method investments | | | | 0.0 | 23.0 | | | |
| Income (loss) from equity method investments | -28.0 | -9.1 | -8.3 | -4.8 | -4.5 | 2.8 | 0.0 | -3.4 |
| Total other income (expense), net | 18.8 | 0.4 | -0.1 | -3.3 | 19.2 | -10.1 | -6.9 | -2.4 |
| Net income (loss) before income taxes | 58.4 | 39.5 | 47.2 | 41.5 | 58.0 | 27.6 | 41.3 | 41.6 |
| Provision for (benefit from) income taxes | 3.3 | 2.4 | 2.8 | 2.6 | 3.5 | 1.7 | 2.5 | 2.9 |
| Net income (loss) | 55.1 | 37.1 | 44.5 | 38.9 | 54.5 | 25.9 | 38.9 | 38.8 |
| Less: Net income (loss) attributable to non-controlling interest | 43.1 | 29.2 | 34.6 | 30.4 | 42.0 | 19.9 | 29.2 | 29.6 |
| Net income (loss) attributable to Rattler Midstream LP | 12.0 | 7.9 | 9.8 | 8.5 | 12.4 | 6.0 | 9.6 | 9.2 |
| |
| Net income (loss) attributable to limited partners per common unit: | | | | | | | | |
| Basic (in dollars per share) | $0.30 | $0.19 | $0.24 | $0.20 | $0.30 | $0.13 | $0.21 | $0.20 |
| Diluted (in dollars per share) | $0.30 | $0.19 | $0.24 | $0.20 | $0.30 | $0.13 | $0.21 | $0.20 |
| |
| Weighted average number of limited partner common units outstanding: | | | | | | | | |
| Basic (in shares) | 38.2 | 38.2 | -0.4 | 40.5 | 41.0 | 41.7 | -0.1 | 44.0 |
| Diluted (in shares) | 38.3 | 38.4 | -0.4 | 40.5 | 41.0 | 41.7 | -0.1 | 44.0 |