This blog post walks you through using the business use cases by providing a walk through of one of the business use cases.
First, an overview of the business use cases. The business use cases is a set of 33 examples of business information represented using XBRL. Here is a summary of the helpful view of this information:
For EACH business use case you can get the following: (I am using the last business use case, nonfinancial information, as an example)
To understand the model of the information (the fact tables), read this blog post. (multidimensional model)
If you want a more comprehensive example, use this reference implementation.