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 | 8-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
ASSETS | | | | | | | | |
Current assets | | | | | | | | |
Cash and cash equivalents | 15.6 | 18.1 | 20.2 | 15.7 | 16.5 | 15.0 | 17.6 | 14.2 |
Accounts receivable | | 19.0 | | 16.9 | 16.5 | 17.0 | 14.6 | 13.6 |
Prepaid expenses and other | 1.5 | 0.8 | 1.4 | 1.2 | 1.2 | | | |
Total current assets | 32.3 | 37.9 | 34.6 | 33.9 | 34.2 | 32.6 | 33.0 | 28.7 |
Property and equipment, net of accumulated depreciation and amortization of $37,961 and $36,323, respectively | 26.0 | 26.6 | 26.1 | 26.6 | 27.7 | 28.2 | 28.8 | 29.6 |
Operating lease right-of-use assets | 55.2 | 59.5 | | | | | | |
Goodwill | 10.6 | 10.6 | | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 |
Investment in equity method investee | 3.1 | 2.8 | | 3.6 | 3.6 | | | |
Other assets | 0.4 | 0.4 | 13.7 | 0.3 | | | | |
Total assets | 127.5 | 137.8 | 121.4 | 111.9 | 116.2 | 115.2 | 114.5 | 115.3 |
|
LIABILITIES AND PARTNERS' EQUITY (DEFICIT) | | | | | | | | |
Current liabilities | | | | | | | | |
Accounts payable | | 7.1 | | 4.4 | 6.0 | 4.9 | 4.2 | 4.5 |
Accrued and other liabilities | 6.0 | 4.8 | | 4.2 | 3.2 | | | |
Asset retirement obligations | 1.5 | 1.8 | | | | | | |
Operating lease current liabilities | 17.2 | 17.3 | | | | | | |
Total current liabilities | 28.8 | 31.7 | 25.7 | 22.8 | 24.0 | 23.0 | 22.5 | 19.4 |
Long-term debt | 57.1 | 58.6 | | 58.5 | 58.5 | | | |
Asset retirement obligations | 3.5 | 3.7 | | 2.3 | 2.2 | | 3.8 | |
Operating lease long-term liabilities | 39.6 | 43.9 | | | | | | |
Total liabilities | 129.0 | 137.8 | 120.7 | 110.1 | 113.9 | 112.9 | 112.2 | 112.7 |
|
Commitments and contingencies (Note 8) | | | | | | | | |
Partners' equity (deficit) | | | | | | | | |
General partner interests | 0.0 | 0.0 | | 0.0 | 0.1 | | | |
Total partners' equity | -1.5 | -0.1 | | 1.9 | 2.3 | 2.3 | 2.3 | 2.6 |
Total liabilities and partners' equity (deficit) | 127.5 | 137.8 | | 111.9 | 116.2 | 115.2 | 114.5 | 115.3 |