| Diluted earnings (loss) per share | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Diluted earnings (loss) per share (IFRS) [abstract] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Diluted earnings per share | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Diluted loss per share | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Diluted earnings (loss) per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/label | http://www.xbrl.org/2003/role/link |
| Diluted loss per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Diluted earnings per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Diluted earnings (loss) per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/label | http://www.xbrl.org/2003/role/link |
| Diluted loss per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Diluted earnings per share | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり当期利益(△損失) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり当期利益(△損失)(IFRS) [タイトル項目] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり当期利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり当期損失 | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり中間利益(△損失) | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/label | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり当期損失 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり中間利益 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedInterim/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり四半期利益(△損失) | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/label | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり四半期損失 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 希薄化後1株当たり四半期利益 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/positiveLabel | http://www.xbrl.org/2003/role/link |