| In millions, except per share items | Jun-30-23 | Mar-31-23 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Cash flows from operating activities: | | | | | | | | |
| Net loss | -10.6 | -12.1 | 0.4 | -10.9 | -0.4 | 97.0 | -0.2 | -0.2 |
| Adjustments to reconcile net loss to net cash used in operating activities | | | | | | | | |
| Share-based compensation expense | 4.6 | 3.9 | | | | | | |
| Non-cash lease expense | 0.2 | | | | | | | |
| Depreciation on property and equipment | 0.1 | 0.1 | | 0.1 | 0.1 | | | |
| Interest income on notes receivable | | | | | | | | |
| Foreign exchange (gain) loss, net | -0.3 | -0.6 | | 2.1 | 0.5 | | | |
| Investment (income) loss, net | 0.4 | -1.7 | | 5.7 | -2.1 | -130.3 | | |
| Allowance for credit loss on financial instruments | 0.3 | | | | | | | |
| Change in fair value of warrant liabilities | 0.0 | 0.0 | | | | | | |
| Change in fair value of forward share purchase liability | | 0.1 | | | | | | |
| Loss on settlement of forward share purchase agreement | 0.4 | | -0.5 | | | | 0.0 | 0.1 |
| Reversal of annual bonus accrued in prior year | -3.8 | | | | | | | |
| Accounts receivable | -0.5 | -0.5 | | 0.1 | 0.0 | | | |
| Loans receivable | 0.0 | 0.0 | | 0.0 | 2.3 | | | |
| Deposit, prepayments, and others receivables | -3.1 | -0.5 | | -0.4 | -0.1 | -2.0 | | |
| Accounts payable and accrued liabilities | 5.4 | 1.2 | | 0.9 | -1.0 | -0.4 | | |
| Escrow liabilities | -2.0 | 0.0 | | -1.1 | 1.7 | -9.8 | | |
| Lease liabilities | -0.2 | | | | | | | |
| Income tax payable | 0.0 | -0.2 | | -0.3 | 0.4 | | | |
| Net cash used in operating activities | -9.1 | -10.2 | -0.2 | -3.8 | 1.3 | -1.7 | -0.2 | -0.1 |
| Proceeds from sale of long-term investments | 0.0 | 4.0 | | | 1.9 | | | |
| Purchase of notes receivable | | -0.6 | | | | | | |
| Dividends received from long-term investments | 1.2 | | | | | | | |
| Addition in long-term investments | | | | -7.8 | | -2.9 | | |
| Purchase of property and equipment | -0.1 | | | 0.0 | -0.9 | 0.0 | | |
| Net cash provided by (used in) investing activities | 0.5 | 4.0 | | 0.0 | -6.9 | | | |
| Advances from holding company | 6.8 | | | 4.3 | | | | |
| Settlement of forward share purchase agreement | -14.0 | | | | | | | |
| Proceeds from borrowings | 0.0 | 1.8 | | | | | | |
| Dividend paid to holding company | | | | | -17.4 | | | |
| Net cash used in financing activities | -8.8 | 3.5 | 0.2 | 1.4 | -14.5 | -164.0 | 0.0 | 0.0 |
| Effect on exchange rate change on cash, cash equivalents and restricted cash | 0.0 | 0.1 | | -0.2 | -0.1 | -0.2 | | |
| Net change in cash, cash equivalent and restricted cash | -17.4 | -2.7 | | -2.6 | -20.1 | | | |
| Cash paid for income taxes | 0.4 | 0.1 | | | | | | |
| Cash paid for interest | 0.2 | 0.2 | | | | | | |
| Cash received for interest | 0.4 | | | | | | | |
| |
| Reconciliation to amounts on consolidated balance sheets: | | | | | | | | |
| Restricted cash | | | | | | | | |
| Total cash, cash equivalents and restricted cash | | | | | | | | |
| SUPPLEMENTAL NON-CASH DISCLOSURES | | | | | | | | |
| Issuance of ordinary shares to settle finder fee | | | | | | | | |
| Forgiveness of amount due to holding company | | | | | | | | |
| Operating lease right-of-use asset obtained in exchange for operating lease liabilities | | | | | | | | |
| Purchase of property and equipment, through earnest deposit | | | | | | | | |
| Special dividend to the holding company offset with amount due from the holding company | | | | | | | | |