I wanted to point out a great resource for information about XBRL Global Ledger (XBRL GL). The site is maintained by Gianluca Garbellotto, a long time proponent of XBRL GL and someone who is very active in its creation.
The site has a bunch of great examples, samples, and a nice viewer which help you see what XBRL GL is all about. One of the nicest things on the site is its collection of webcasts about XBRL GL.