Get all the document libraries where IsContentTypeAllowed is enabled

I am using this PowerShell code to get a list of document libraries where allow content type is enabled. But it does not return anything.

Get-SPWeb http://intranet.site.net |
   Select -ExpandProperty Lists |
   Where { $_.GetType().Name -eq "SPDocumentLibrary" -and
          -not $_.Hidden } |
   Select -ExpandProperty Items |
   Where { $_["IsContentTypeAllowed"] -eq "True" } |
   Select Name, url