Reverse Recapitalization and Acquisitions of subsidiaries - Reconciliation of total market capitalization (Details) ¥ in Millions |
12 Months Ended |
|---|---|
|
Mar. 31, 2025
JPY (¥)
| |
| Business Combinations And Reverse Recapitalization [Abstract] | |
| Total market capitalization attributable to Thunder Bridge stockholders | ¥ 13,165 |
| Less: Ghisallo Non-Redemption Agreement | (1,593) |
| Less: Additional paid-in capital transferred over when transferring net liabilities from CCG, under common control | (189) |
| Less: Ordinary Shares | (15) |
| Plus: Treasury shares | 4 |
| Additional paid-in capital from Reverse Recapitalization, net | ¥ 11,372 |