Equity - Summary of Movements of Shares in Share Trust (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Movements Of Shares In Share Trust [Roll Forward] | ||
| Exercise of share options | $ 0 | $ 0 |
| Mesoblast Employee Share Trust | ||
| Movements Of Shares In Share Trust [Roll Forward] | ||
| Opening balance (in shares) | 32,389 | 542,903 |
| Opening balance | $ 0 | $ 0 |
| Transfer to employee share trust, (in shares) | 10,335,000 | 7,200,000 |
| Transfer to employee share trust | $ 0 | $ 0 |
| Exercise of share options (in shares) | (8,580,150) | (6,163,404) |
| Exercise of share options | $ 0 | $ 0 |
| Ending balance (in shares) | 1,787,239 | 1,579,499 |
| Ending balance | $ 0 | $ 0 |