| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 8-K | 10-Q | 10-Q | 10-K | 10-Q |
| Revenues: |
| Product Revenue - Third Party | | | | | | | | 60.6 |
| Service Revenue - Affiliate | | | | | | | | 9.2 |
| Product Revenue - Affiliate | | | | | | | | 34.3 |
| Service Revenue - Third Party | | | | | | | | 0.1 |
| Lease Revenue - Affiliate | | | | | | | | 9.1 |
| Wholesale Marketing and Terminalling revenues | 118.8 | 112.3 | | | 165.5 | 130.8 | 113.9 | 113.4 |
| Revenue growth [+] | -28.2% | -14.1% | | | 68.8% | 48.7% | 57.1% | 60.2% |
| Product Revenue - Third Party | | | | | | | | 38.9% |
| Service Revenue - Affiliate | | | | | | | | 6.1% |
| Product Revenue - Affiliate | | | | | | | | 487.4% |
| Service Revenue - Third Party | | | | | | | | -14.7% |
| Lease Revenue - Affiliate | | | | | | | | -26.9% |
| Gross profit | 118.8 | 112.3 | | | 165.5 | 130.8 | 113.9 | 113.4 |
| Gross margin | 100.0% | 100.0% | | | 100.0% | 100.0% | 100.0% | 100.0% |
| EBIT | | | | | | | | 19.8 |
| EBIT margin | | | | | | | | 17.5% |
| |
| Capital expenditures | 2.7 | 3.1 | | | 0.1 | 0.2 | 1.0 | 1.6 |
| |
| Total assets | | | | | 192.1 | 205.7 | 211.7 | 213.3 |
| ROA | | | | | 0.0% | 0.0% | 0.0% | 9.3% |
| |
| Revenue Mix | 48.1% | 46.1% | | | 62.1% | 63.3% | 60.0% | 59.8% |
| EBIT Mix | | | | | | | | 39.1% |