Handles when a detail item is double clicked on.
        
        :param      item | <QTreeWidgetItem>

def handleDetailDblClick( self, item ):
        """
        Handles when a detail item is double clicked on.
        
        :param      item | <QTreeWidgetItem>
        """
        if ( isinstance(item, XOrbRecordItem) ):
            self.emitRecordDoubleClicked(item.record())