<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <!-- This doesn't work on Arelle LocalViewer but is required on sec.gov website
    <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests" />
    -->
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />

    <link rel="shortcut icon" type="image/x-icon" href="/favicon.ico" />
    <title>XBRL Viewer</title>
        <script language="JavaScript">
            /* <![CDATA[ */
                /* Created by staff of the U.S. Securities and Exchange Commission.
                 * Data and content created by government employees within the scope of their employment
                 * are not subject to domestic copyright protection. 17 U.S.C. 105.
                 *
                 * This script checks the accession number of the document requested to determine
                 * the year and sequence of filing.  If filed after the availability of ixviewer-plus
                 * this script redirects to that viewer, otherwise to a prior ixviewer in effect
                 * or deemed compatible with the filing.
                 */
                function loadViewer(ixvUrl) {
                   // load viewer in an iframe so the end user's browser URL is not changed
                   var iFrame = document.getElementById("ixvFrame");
                   iFrame.src = ixvUrl;
                }
                const url = location.href;
                // url doc pattern is /Archives/edgar/data/ciknum/{10digits}{YY}{sequence}/{more params}
                // uncomment one of the following urlPatterns depending on usage:
                // for SEC.GOV: const urlPattern = /(\?doc=(\/Archives\/edgar\/data\/[0-9]+\/[0-9]{10}([0-9]{8})\/).*$)/;
                // for Arelle GUI: const urlPattern = /(\?doc=(\/[0-9]+\/).*$)/;
                const urlPattern = /(\?doc=(\/[0-9]+\/).*$)/;
                const ixvPlusNsPattern = /http:\/\/xbrl.sec.gov\/(ffd|sbs)\/.*$/;
                var ixvUrl = null;
                if (! urlPattern.test(url)) {
                    alert("Not an EDGAR inline XBRL document viewing request, please check URL");
                    // this hangs: loadViewer("/ixviewer/ix.html" + ixParams);
                } else {
                    const match = url.match(urlPattern);
                    const ixParams = match[1];
                    const docPath = match[2];
                    let xhr = new XMLHttpRequest();
                    xhr.onreadystatechange = function() {
                        if (this.readyState == 4) {
                            if (this.status == 200) {
                                const ml = JSON.parse(this.responseText);
                                if (!(typeof ml === 'object' && "instance" in ml)) {
                                   console.log("Metalinks does not have instance objects");
                                   // Unable to read MetaLinks.json, use 23.2 ixviewer
                                   loadViewer("/ixviewer/ix.html" + ixParams);
                                } else {
                                   const numInstances = Object.keys(ml["instance"]).length;
                                   let maxDocsPerInst = 0;
                                   let hasIxvPlusExhibit = false;
                                   Object.keys(ml["instance"]).forEach(instanceNames => {
                                        let docsInInstance = instanceNames.split(" ").length;
                                        if (docsInInstance > maxDocsPerInst)
                                            maxDocsPerInst = docsInInstance;
                                        if ("baseTaxonomies" in ml["instance"][instanceNames]) {
                                           Object.keys(ml["instance"][instanceNames]["baseTaxonomies"])
                                           .forEach(baseTaxonomyUrl => {
                                               if (ixvPlusNsPattern.test(baseTaxonomyUrl))
                                                   hasIxvPlusExhibit = true;
                                           });
                                        }
                                       });
                                    // starting 2025 we load all filings in the plus viewer.
                                    loadViewer("/ixviewer-plus/ix.xhtml" + ixParams);
                                }
                            } else {
                                    console.log("Unable to read MetaLinks.json for this accession");
                                    // Unable to read MetaLinks.json, use 23.2 ixviewer
                                    loadViewer("/ixviewer/ix.html" + ixParams);
                            }
                        }
                    };
                    xhr.ontimeout = function() {
                        console.log("Timeout reading MetaLinks.json for this accession");
                        // Unable to read MetaLinks.json, use 23.2 ixviewer
                        loadViewer("/ixviewer/ix.html" + ixParams);
                    };
                    xhr.open("GET", docPath + 'MetaLinks.json', true);
                    xhr.timeout = 2000; // milliseconds
                    xhr.send();

                    /* Arelle GUI usage: set title for tab in browser for when there are multiple tabs */
                    const urlTitleParamPattern = /&title=([^&]+),*$/;
                    if (urlTitleParamPattern.test(url)) {
                        const match = url.match(urlTitleParamPattern);
                        document.title = decodeURIComponent(match[1]);
                    }

                    /* alternative select viewer using accession number

                    const acsnYrSeq = match[3];
                    if (acsnYrSeq > "24905000") {
                        loadViewer(docPath + "ixbrlviewer.xhtml");
                    } else if (acsnYrSeq > "23905000") {
                        loadViewer("/ixviewer-plus/ix.xhtml" + ixParams);
                    } else {
                        loadViewer("/ixviewer/ix.html" + ixParams);
                    }

                    */
                }
            /* ]]> */
        </script>
</head>

<body style="margin: 0">
        <noscript>
                Please enable JavaScript to use the EDGAR Inline XBRL Viewer.
        </noscript>
        <iframe id="ixvFrame"
                title="Inline XBRL Viewer"
                style="position: absolute; height: 100%; width: 100%; border: none"
        />
</body>
</html>
