| （単位：十億円） | 4Q14 | 4Q15 | 4Q16 | 4Q17 | 4Q18 | 4Q19 | 1Q20 | 2Q20 | 3Q20 | 4Q20 | 1Q21 | 2Q21 | 3Q21 | 4Q21 | 1Q22 | 2Q22 | 3Q22 | 4Q22 | 1Q23 | 2Q23 | 3Q23 | 4Q23 | 1Q24 | 2Q24 | 3Q24 | 4Q24 | 1Q25 | 2Q25 | 3Q25 | 4Q25 | 1Q26 | 2Q26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現金同等物 | - | 6 | 4 | 5 | 10 | 154 | 161 | 174 | 136 | 133 | 126 | 154 | 165 | 164 | 170 | 157 | 224 | 253 | 246 | 137 | 161 | 175 | 152 | 151 | 59 | 98 | 66 | 53 | 49 | 53 | 43 | 42 |
| 流動資産合計 | - | 8 | 8 | 10 | 13 | 15 | - | - | - | 11 | - | - | - | 12 | - | - | - | 17 | - | - | - | 11 | - | - | - | 38 | - | - | - | 23 | - | - |
| 有形固定資産 | - | 0 | 0 | 0 | 0 | 2 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 5 | 4 | 4 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 |
| 投資有価証券 | - | 1 | 1 | 1 | 1 | 1 | - | - | - | 1 | - | - | - | 3 | - | - | - | 3 | - | - | - | 4 | - | - | - | 5 | - | - | - | 9 | - | - |
| 固定資産合計 | - | 97 | 98 | 94 | 86 | 91 | - | - | - | 92 | - | - | - | 98 | - | - | - | 101 | - | - | - | 103 | - | - | - | 80 | - | - | - | 90 | - | - |
| 総資産 | - | 105 | 106 | 104 | 974 | 1,028 | 1,035 | 1,063 | 1,041 | 1,023 | 1,103 | 1,150 | 1,214 | 1,401 | 1,407 | 1,466 | 1,532 | 1,608 | 1,579 | 1,555 | 1,441 | 1,504 | 1,562 | 1,574 | 1,571 | 762 | 785 | 701 | 772 | 710 | 719 | 759 |
| 短期借入金 | - | - | - | 6 | 0 | 0 | - | - | - | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 一年内返済予定の長期借入金 | - | 3 | 9 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 流動負債合計 | - | 4 | 12 | 10 | 22 | 28 | - | - | - | 29 | - | - | - | 33 | - | - | - | 20 | - | - | - | 17 | - | - | - | 7 | - | - | - | 13 | - | - |
| 長期借入金 | - | 9 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 固定負債合計 | - | 27 | 17 | 16 | 1 | 0 | - | - | - | 0 | - | - | - | 0 | - | - | - | 0 | - | - | - | 0 | - | - | - | 1 | - | - | - | 1 | - | - |
| 総負債 | - | 30 | 29 | 26 | 893 | 948 | 955 | 986 | 963 | 946 | 1,025 | 1,071 | 1,133 | 1,311 | 1,311 | 1,365 | 1,427 | 1,502 | 1,472 | 1,448 | 1,341 | 1,403 | 1,460 | 1,470 | 1,465 | 629 | 650 | 567 | 645 | 583 | 599 | 640 |
| 資本金及び資本剰余金 | - | 54 | 54 | 54 | 105 | 105 | 51 | 51 | 51 | 104 | 51 | 51 | 51 | 104 | 51 | 50 | 55 | 114 | 54 | 55 | 55 | 113 | 54 | 54 | 54 | 114 | 54 | 54 | 64 | 124 | 65 | 61 |
| 利益剰余金 | - | 21 | 23 | 25 | 23 | 19 | 19 | 20 | 20 | 18 | 19 | 20 | 22 | 30 | 35 | 40 | 39 | 39 | 38 | 38 | 37 | 35 | 35 | 37 | 37 | 62 | 61 | 62 | 49 | 46 | 42 | 44 |
| 株主資本 | 71 | 75 | 77 | 78 | 76 | 80 | 80 | 77 | 77 | 77 | 78 | 79 | 81 | 91 | 96 | 101 | 106 | 106 | 107 | 108 | 100 | 101 | 102 | 105 | 106 | 133 | 135 | 134 | 127 | 126 | 120 | 119 |