| 貸付金の回収による収入 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 貸付金の回収による収入、投資活動によるキャッシュ・フロー | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 貸付の回収による収入 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/cmd/role/label | http://www.xbrl.org/2003/role/link |
| Proceeds from collection of loans receivable | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Proceeds from collection of loans receivable - InvCF | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Proceeds from collection of loan receivables | en | http://disclosure.edinet-fsa.go.jp/jppfs/cmd/role/label | http://www.xbrl.org/2003/role/link |