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 | 
                                                4,719,242,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,824,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | 
                                                182,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                150,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | 
                                                -3,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,332,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | 
                                                -1,616,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -858,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | 
                                                3,281,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,113,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -384,110,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -496,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from collection of loans receivable | 
                                                13,967,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | 
                                                -1,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                21,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | 
                                                -194,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -788,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||
| Proceeds from long-term borrowings | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | 
                                                -150,418,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of treasury shares | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -42,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | 
                                                -1,059,922,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -644,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | 
                                                -213,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -773,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                402,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                87,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                3,276,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,638,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | 
                                                9,373,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,096,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,458,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |