| Ratio of number of voting rights represented by share certificates, etc. to be purchased among number of voting rights owned by all shareholders, etc. of subject company | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ratio of number of voting rights represented by share certificates, etc. to be purchased among number of voting rights owned by all shareholders, etc. of subject company | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 買付予定の株券等に係る議決権の数の総株主等の議決権の数に占める割合 (a/j)(%) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 買付予定の株券等に係る議決権の数の総株主等の議決権の数に占める割合 (a/j)(%) | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |