| Credit derivative, fair value | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Credit derivative, fair value at beginning of period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Credit derivative, fair value at end of period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| The fair value of a credit derivative. [Refer: At fair value [member]; Derivatives [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Кредитен деривативен инструмент, справедлива стойност | bg | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Справедливата стойност на кредитен деривативен инструмент. [вж. По справедлива стойност [member]; Деривативни инструменти [member]] | bg | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Кредитен деривативен инструмент, справедлива стойност към началото на периода | bg | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Кредитен деривативен инструмент, справедлива стойност към края на периода | bg | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |