| In millions, except per share items | Jun-30-22 | Jun-30-21 | Jun-30-20 | Jun-30-19 | Jun-30-18 | Jun-30-17 | Jun-30-16 | Jun-30-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 28.0 | 23.9 | 18.7 | 17.5 | 14.4 | 11.2 | 9.0 | 7.2 |
| Depreciation and amortization [+] | 0.8 | 0.8 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 |
| Depreciation | 0.8 | 0.8 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 |
| Tax benefit from stock-based compensation | | | | | | -0.1 | 0.0 | 0.0 |
| Deferred taxes | -0.7 | -2.0 | -1.0 | -1.0 | 0.1 | -0.3 | -0.7 | 0.5 |
| Change in working capital [+] | 5.0 | 1.7 | 2.7 | 2.0 | 3.0 | -0.7 | 1.8 | 1.4 |
| Other current assets | 0.2 | -0.9 | -1.5 | 0.0 | -0.4 | 0.2 | 0.2 | -0.8 |
| Income taxes | 0.0 | -0.6 | 0.9 | 0.1 | 1.8 | -1.6 | 0.6 | 1.7 |
| Other | 4.8 | 3.3 | 3.3 | 1.9 | 1.6 | 0.7 | 1.0 | 0.5 |
| Other operating activities | 2.2 | 3.3 | 5.6 | 2.5 | 2.6 | 3.3 | 3.0 | 3.2 |
| Cash from operations | 35.4 | 27.8 | 26.7 | 21.6 | 20.7 | 14.0 | 13.6 | 12.8 |
| |
| Capital expenditures | -1.1 | -1.3 | -1.1 | -0.6 | -0.3 | -0.1 | -0.3 | -0.8 |
| Purchases of property and equipment | -1.1 | -1.3 | -1.1 | -0.6 | -0.3 | -0.1 | -0.3 | -0.8 |
| Purchases of short-term investments, net | -18.4 | -155.4 | -79.0 | 21.6 | -16.5 | 17.7 | -5.0 | -5.0 |
| Purchases of short-term investments | -315.6 | -413.8 | -235.6 | -109.7 | -98.5 | -68.6 | -66.3 | -42.7 |
| Sales of short-term investments | 297.2 | 258.3 | 156.6 | 131.3 | 82.0 | 86.3 | 61.3 | 37.7 |
| Other cash from investing | -451.7 | -260.5 | -317.2 | -136.3 | -146.6 | -133.4 | -127.1 | -60.8 |
| Cash from investing | -471.2 | -417.1 | -397.3 | -115.3 | -163.4 | -115.8 | -132.4 | -66.5 |
| |
| Cash dividends paid | -2.6 | -2.4 | -2.2 | -2.0 | -1.5 | -1.9 | -1.9 | -1.8 |
| Repurchase of common stock, net | | | -0.6 | | | | | |
| Option exercises | | | | | 0.2 | 0.2 | 0.2 | 0.1 |
| Other cash from financing | 357.7 | 501.1 | 384.4 | 98.8 | 154.6 | 104.2 | 121.3 | 57.3 |
| Cash from financing | 355.1 | 498.7 | 381.5 | 96.7 | 152.9 | 102.1 | 119.2 | 55.5 |
| |
| Free cash flow | 34.3 | 26.5 | 25.6 | 21.0 | 20.3 | 14.0 | 13.3 | 12.0 |
| Per share (diluted) | $4.03 | $3.11 | $3.00 | $2.46 | $2.38 | $1.64 | $1.57 | $1.42 |
| |
| Cash paid for interest | 5.2 | 5.0 | 8.5 | 6.3 | 4.0 | 3.1 | 2.6 | 2.3 |