| In millions, except per share items | Jun-30-23 | Mar-31-23 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 |
| | 8-K | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Net income | 0.0 | 3.5 | 17.8 | 4.2 | 9.1 | 15.9 | 11.8 | 4.3 |
| Depreciation and amortization | 34.9 | 33.4 | 31.2 | 29.4 | 29.1 | 27.5 | 24.3 | 22.7 |
| Stock-based compensation | 2.4 | 2.0 | 0.9 | 2.2 | 2.8 | 2.7 | 3.1 | 2.9 |
| Deferred taxes | 1.9 | 0.1 | 6.6 | 0.5 | 2.1 | 5.9 | 4.7 | 2.3 |
| Change in working capital [+] | | | 6.6 | -18.1 | 0.9 | -0.5 | -2.6 | -5.6 |
| Accounts receivable | | | -15.1 | 0.4 | 3.5 | -6.2 | -12.6 | 7.9 |
| Other current assets | | | -5.0 | -1.1 | 8.0 | -7.2 | -5.1 | -2.1 |
| Accounts payable | | | 8.0 | 2.1 | -6.4 | 9.5 | 9.5 | 1.3 |
| Other | | | 18.7 | -19.6 | -4.3 | 3.5 | 5.6 | -12.7 |
| Other operating activities | 28.0 | -23.0 | 4.4 | 6.4 | 4.6 | 3.7 | 5.5 | 5.5 |
| Cash from operations | 67.1 | 16.1 | 67.5 | 24.7 | 48.6 | 55.1 | 46.9 | 32.1 |
| |
| Capital expenditures [+] | -32.5 | -17.9 | -42.0 | -12.9 | -41.7 | -25.5 | -29.2 | -26.8 |
| Purchases of property and equipment | -32.5 | -17.9 | -42.0 | -12.9 | -41.7 | -25.5 | -29.2 | -26.8 |
| Sales of property and equipment | | 0.4 | 0.4 | 0.1 | 0.2 | 0.2 | 0.3 | 0.1 |
| Acquisitions | -547.3 | -0.3 | -6.5 | -49.8 | -17.5 | -147.6 | -0.9 | -4.6 |
| Other cash from investing | 0.4 | | | | | | | |
| Cash from investing | -579.5 | -17.7 | -48.1 | -62.5 | -59.1 | -172.9 | -29.9 | -31.3 |
| |
| Financing costs | | -0.3 | -1.2 | 0.0 | -3.7 | | | |
| Other cash from financing | 917.9 | -9.6 | 7.1 | 16.6 | -5.9 | -2.8 | -2.4 | -2.7 |
| Cash from financing | 917.9 | -9.3 | 8.3 | 16.6 | -2.3 | -2.8 | -2.4 | -2.7 |
| |
| Free cash flow | 34.6 | -1.8 | 25.6 | 11.8 | 6.9 | 29.6 | 17.6 | 5.3 |
| Per share (diluted) | $0.65 | ($0.03) | $0.49 | $0.23 | $0.03 | $0.57 | $0.34 | $0.10 |
| |
| Cash paid for interest | | | 4.8 | 4.8 | 4.6 | 4.7 | 4.7 | 5.0 |
| Cash paid for income taxes | | | 1.9 | 0.2 | 0.8 | 0.2 | 0.2 | 0.2 |