| In millions, except per share items | Jun-30-23 | Jun-05-23 | Mar-31-23 | Mar-05-23 | Dec-05-22 | Jun-30-22 | Jun-05-22 | Mar-31-22 |
| | 10-Q | 8-K | 10-Q | 8-K | 8-K | 10-Q | 8-K | 10-Q |
| Cash flows from operating activities | | | | | | | | |
| Net income | 29.6 | | 30.7 | | | -4.0 | | 12.8 |
| |
| Adjustments to reconcile net income to net cash from operating activities | | | | | | | | |
| Depreciation and amortization | 30.8 | | 25.2 | | | 24.3 | | 23.7 |
| Amortization of operating lease right-of-use assets | 2.2 | | 7.4 | | | 7.8 | | 7.7 |
| ARO accretion expense | 0.4 | | 0.4 | | | 0.4 | | 0.4 |
| Amortization of debt issuance costs | 0.6 | | 3.3 | | | 0.3 | | 0.3 |
| Deferred income taxes | 1.3 | | 0.7 | | | -5.7 | | 0.2 |
| Share of net earnings in equity method investee | -0.4 | | -0.4 | | | -0.7 | | -0.8 |
| Distributions from equity method investee | | | | | | | | 2.7 |
| Long-term incentive compensation expense | 1.1 | | 0.4 | | | 0.3 | | |
| Early extinguishment of lease liability on vessel acquisition | | | | | | 21.8 | | |
| Non-cash restructuring expense | | | | | | 1.6 | | |
| (Gain)/loss on non-cash items | 0.4 | | 1.3 | | | | | |
| |
| Changes in operating assets and liabilities: | | | | | | | | |
| Accounts receivable | -91.9 | | 24.5 | | | -67.7 | | 144.1 |
| Inventories | 104.1 | | 40.4 | | | -12.8 | | 52.8 |
| Other current assets and other assets | -10.2 | | -3.7 | | | 9.6 | | -11.9 |
| Accounts payable and accrued liabilities | 47.7 | | -98.0 | | | 52.7 | | -264.0 |
| Derivative liabilities | 0.2 | | | | | 0.7 | | 0.6 |
| Current portion of deferred revenue | | | | | | | | |
| Net investments in sales-type leases | | | | | | | | |
| Operating lease assets and liabilities | | | | | | | | |
| Other long-term liabilities | 1.1 | | 1.0 | | | -0.2 | | 3.5 |
| Net cash provided by (used in) operating activities | -22.3 | | 46.8 | | | 21.9 | | -31.4 |
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| Cash flows from investing activities | | | | | | | | |
| Purchases of property and equipment | -277.9 | | -14.9 | | | -31.0 | | -11.0 |
| Sales of property and equipment | 4.1 | | | | | | | |
| Net cash used in investing activities | -273.8 | | -14.9 | | | -31.0 | | -11.0 |
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| Cash flows from financing activities | | | | | | | | |
| Proceeds from issuance of common stock, net | | | | | | 412.2 | | |
| Proceeds from long-term debt - related party | | | | | | 83.1 | | 566.3 |
| Repayments of long-term debt - related party | -2.1 | | -2.0 | | | -141.3 | | -506.8 |
| Repayments of long term debt | -6.1 | | -4.8 | | | -5.5 | | -4.0 |
| Proceeds from revolving credit facility | | | | | | 140.0 | | |
| Repayments of revolving credit facility | | | | | | -140.0 | | |
| Proceeds from Term Loan Facility | 250.0 | | | | | | | |
| Payment of debt issuance costs | -2.4 | | -4.6 | | | -5.5 | | |
| Collections of related party note receivables | | | | | | | | 6.6 |
| Settlement of finance lease liability related party | | | | | | 25.0 | | |
| Principal payments under finance lease liabilities | -5.5 | | -5.3 | | | -5.5 | | -5.3 |
| Principal payments under finance lease liabilities - related party | | | | | | | | -2.9 |
| Dividends paid | -1.3 | | | | | | | |
| Distributions | -6.1 | | | | | | | |
| |
| Contributions | | | | | | | | |
| Minority owner contribution - Albania Power Project | 0.7 | | | | | | | |
| Net cash provided by financing activities | 226.8 | | -16.4 | | | 312.5 | | 53.8 |
| Effect of exchange rate on cash, cash equivalents, and restricted cash | 0.3 | | -0.4 | | | | | |
| Net increase (decrease) in cash, cash equivalents and restricted cash | -53.9 | | | | | 314.7 | | |
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| Cash, cash equivalents and restricted cash | | | | | | | | |