| In millions, except per share items | Jun-30-23 | Jun-30-22 | Mar-31-22 | Sep-30-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q |
| Formation and operating costs | 0.3 | 0.3 | 0.4 | 0.0 |
| Loss from operations | -0.3 | -0.3 | -0.4 | |
| Realized and unrealized gain (loss) on marketable securities held in trust | | 0.1 | | |
| Interest income on securities held in trust | 2.9 | 0.2 | | |
| Net income (loss) | 2.6 | 0.0 | -0.4 | 0.0 |
| |
| Weighted average shares outstanding of class A and B ordinary shares subject to possible redemption, basic | | | | |
| Weighted average shares outstanding of class A and B ordinary shares subject to possible redemption, diluted | | | | |
| Basic net income (loss) per share, Class A and B ordinary shares subject to possible redemption | | | | |
| Diluted net income (loss) per share, Class A and B ordinary shares subject to possible redemption | | | | |