Don't Process Non-iXBRL Models

[austinmatherne-wk]

Reason for change

If the iXBRL plugin is enabled and a non-iXBRL report is loaded an exception is thrown.

[viewer:exception] Exception 'ModelFact' object has no attribute 'format' 
Traceback ['  File "/Applications/Arelle.app/Contents/MacOS/plugin/iXBRLViewerPlugin/__init__.py", line 119, in processModel\n    pluginData(cntlr).builder.processModel(modelXbrl)\n', '  File "/Applications/Arelle.app/Contents/MacOS/plugin/iXBRLViewerPlugin/iXBRLViewer.py", line 412, in processModel\n    self.addFact(report, f)\n', '  File "/Applications/Arelle.app/Contents/MacOS/plugin/iXBRLViewerPlugin/iXBRLViewer.py", line 282, in addFact\n    if f.format is not None:\n       ^^^^^^^^\n']

Description of change

Check that the report is iXBRL before processing.

Steps to Test

• Load non-iXBRL doc: python arelleCmdLine.py --plugins ixbrl-viewer --save-viewer ixbrlviewer.html --file https://www.sec.gov/Archives/edgar/data/1445305/000144530515000045/0001445305-15-000045-xbrl.zip
• Confirm no exceptions are thrown.
• Confirm log: [viewer:error] No inline XBRL documents loaded. Skipping iXBRL Viewer generation.

review: @Arelle/arelle @paulwarren-wk

[aviary3-wk]

Security Insights

No security relevant content was detected by automated scans.

Action Items

• Review PR for security impact; comment "security review required" if needed or unsure

• Verify aviary.yaml coverage of security relevant code

  Questions or Comments? Reach out on Slack: #support-infosec.

[aaroncameron-wk]

QA +10