| 連結損益計算書及び連結包括利益計算書 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 連結損益計算書及び連結包括利益計算書 [目次項目] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Consolidated statement of income and consolidated statement of comprehensive income | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Consolidated statement of income and consolidated statement of comprehensive income [heading] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |