| 前期繰越利益又は前期繰越損失(△) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 前期繰越利益又は前期繰越損失(△)、資産流動化業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 前期繰越損失(△) | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 前期繰越利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Retained earnings (deficit) brought forward | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Retained earnings (deficit) brought forward-LIQ | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Deficit brought forward | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Retained earnings brought forward | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |