@property
    def url(self):
        try:
            return self._url
        except __HOLE__:
            self._url = None
            for instDocElt in XmlUtil.descendants(self, edgr, "xbrlFile"):
                if instDocElt.get(edgrType).endswith(".INS"):
                    self._url = instDocElt.get(edgrUrl)
                    break
            return self._url
dataset/ETHPy150Open Arelle/Arelle/arelle/ModelRssItem.py/ModelRssItem.url