| Description of fact that quarterly statement of cash flows has not been prepared | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Description of fact that quarterly statement of cash flows has not been prepared [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes when quarterly consolidated statement of cash flows have not been prepared | en | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/label | http://www.xbrl.org/2003/role/link |
| 四半期キャッシュ・フロー計算書を作成しない場合の注記 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 四半期キャッシュ・フロー計算書を作成しない場合の注記 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 四半期連結キャッシュ・フロー計算書を作成しない場合の注記 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ConsolidatedQuarterly/role/label | http://www.xbrl.org/2003/role/link |