The Spanish Stock Exchange is currently receiving XBRL reports from 3000 companies. In addition, the Bank of Spain is receiving XBRL data from most of the banks in Spain. It's a good illustration of the progress being made in Europe with XBRL. A white paper from Spain can be downloaded from the following link:
http://www.xbrl.org/es/technical/XBRLSpain-White_Paper-Sept2005.pdf