Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2024-09-30 | 2024-04-01 to 2024-09-30 | As at 2024-03-31 | As at 2023-09-30 | 2023-04-01 to 2023-09-30 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                1,196,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,029,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                415,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                448,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | — | 
                                                4,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                19,739,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Amortization of goodwill | — | 
                                                10,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                11,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                3,797,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                40,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividend income | — | 
                                                -4,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -6,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | 
                                                24,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                17,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in provision for bonuses | — | 
                                                85,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                92,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | 
                                                811,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                408,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                -12,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                194,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | 
                                                -62,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -93,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -304,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                144,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                -459,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,829,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | — | 
                                                4,865,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -25,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -17,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -951,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,456,351,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -484,951,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -288,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of investment securities | — | 
                                                -10,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -201,157,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Loan advances | — | 
                                                -16,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -21,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from collection of loans receivable | — | 
                                                27,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                65,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -15,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -9,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -588,708,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -418,782,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||
| Proceeds from long-term borrowings | — | 
                                                3,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,800,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | — | 
                                                -1,902,241,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,796,634,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of treasury shares | — | 
                                                -60,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | — | 
                                                -648,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -293,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                449,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                704,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                11,844,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                12,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -1,079,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,754,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                28,069,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                29,148,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,923,966,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                27,169,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |