Semi-Annual Statement Of Cash Flows
| Concept | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|
| Semi-annual statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | 
                                                2,115,040,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                860,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | 
                                                20,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                11,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | 
                                                -7,511,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | 
                                                -696,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -560,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | 
                                                1,431,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                308,730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -370,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -613,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of property, plant and equipment | 
                                                1,052,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                60,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of investment securities | 
                                                222,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                45,945,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Loan advances | 
                                                -25,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -799,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from collection of loans receivable | 
                                                16,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,666,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | 
                                                -1,616,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -519,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||
| Proceeds from long-term borrowings | 
                                                1,990,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Redemption of bonds | 
                                                -105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | 
                                                -450,564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -203,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of treasury shares | 
                                                -13,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | 
                                                -236,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -219,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | 
                                                1,067,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                116,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | 
                                                -5,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -4,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                31,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                58,804,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                913,237,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -35,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | 
                                                3,213,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,299,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,335,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |