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Issued capital - Narrative (Details) - USD ($) | 1 Months Ended | 6 Months Ended | 7 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2024 | Dec. 31, 2023 | Jan. 19, 2025 | Jun. 30, 2024 | Jun. 30, 2023 | May 15, 2024 | Mar. 21, 2024 | Sep. 13, 2023 | Sep. 23, 2022 | Jun. 30, 2022
Issued capital |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Shares issued under ATM Facility Facility (in shares) |  |  |  | 108,063,868 |  |  |  |  |  |
Shares issued under ATM Facility |  |  |  | $ 771,438,000 |  |  |  |  |  |
Committed Equity Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in number of shares issued |  |  |  | 12,887,814 | 11,089,357 |  |  |  |  |
Share based payment transactions under committed equity facility |  |  |  | $ 51,417,000 | $ 39,939,000 |  |  |  |  |
Loan-funded shares [Abstract] |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 186,367,686 | 64,747,477 |  |  |  |  | 53,028,867
Issued capital | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Shares issued under ATM Facility | $ 5,191,000 |  |  |  |  |  |  |  |  |
Additional shares issued (in shares) | 463,089 |  |  |  |  |  |  |  |  |
Equity offerings at the market | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Shares issued under ATM Facility Facility (in shares) |  |  | 9,010,957 |  |  |  |  |  |  |
Shares issued under ATM Facility |  |  | $ 103,269,000 |  |  |  |  |  |  |
Ordinary shares |  |  |  |  |  |  |  |  |  |
Ordinary shares [Abstract] |  |  |  |  |  |  |  |  |  |
Par value per share |  |  |  | $ 0 |  |  |  |  |  |
Loan-funded shares [Abstract] |  |  |  |  |  |  |  |  |  |
Number of restricted shares issued (in shares) |  |  |  | 1,496,768 | 1,954,049 |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  | 187,864,454 | 66,701,526 |  |  |  |  |
B. Riley Principal Capital II, LLC | Ordinary shares | Offerings At The Market |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  | $ 500,000,000 | $ 500,000,000 | $ 300,000,000 |  |
Term of option agreement to sell ordinary shares |  | 36 months |  |  |  |  |  |  |  |
Value of shares increased to be issued under share sale option agreement |  |  |  |  |  |  | 200,000,000 |  |  |
Committed Equity Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  | $ 500,000,000 | $ 500,000,000 | 300,000,000 |  |
Term of option agreement to sell ordinary shares |  | 36 months |  |  |  |  |  |  |  |
B. Riley Principal Capital II, LLC | Ordinary shares | Committed Equity Facility |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Term of option agreement to sell ordinary shares |  |  |  | 2 years |  |  |  |  |  |
Committed Equity Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Term of option agreement to sell ordinary shares |  |  |  | 2 years |  |  |  |  |  |
B. Riley Principal Capital II, LLC | Ordinary shares | Committed Equity Facility | Maximum |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  |  |  |  | $ 100,000,000 |
Committed Equity Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  |  |  |  | $ 100,000,000 |
B. Riley Principal Capital II, LLC | Ordinary shares | Equity offerings at the market | Maximum |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  |  |  | 300,000,000 |  |
Committed Equity Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Maximum value of shares to be issued under share sale option agreement (in shares) |  |  |  |  |  |  |  | $ 300,000,000 |  |

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