Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                1,910,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,011,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                4,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,684,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -1,069,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -423,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                874,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,785,249,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of investment securities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -54,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -8,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -23,178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -1,733,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,340,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Repayments of long-term borrowings | — | 
                                                -10,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -124,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from issuance of shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -502,418,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -285,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -248,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -296,389,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -872,106,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -1,154,980,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,572,494,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                6,571,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,717,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,144,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |