| Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of expense arising from share-based payment transactions in which the goods or services received did not qualify for recognition as assets. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |