| 兼業事業総利益又は兼業事業総損失(△) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 兼業事業総利益又は兼業事業総損失(△)、建設業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 兼業事業総利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 兼業事業総損失(△) | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Gross profit (loss) on sideline business | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gross profit (loss) on sideline business - CNS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Gross profit on sideline business | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Gross loss on sideline business | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |