@property
    def parentQname(self):
        try:
            return self._parentQname
        except __HOLE__:
            parentObj = self.getparent()
            self._parentQname = parentObj.elementQname if parentObj is not None else None
            return self._parentQname
dataset/ETHPy150Open Arelle/Arelle/arelle/ModelObject.py/ModelObject.parentQname