(These URLs will be deprecated soon, please see this summary here for improved examples.)
The first set of examples provided a comparison across entities, but was for one small part of a financial report, the breakdown of net income (loss) by total, parent portion and noncontrolling interest portion. The second set of examples showed more parts of the financial report, but was still across entities.
This third set of examples provides information about one entity across multiple periods:
Now, imagine being able to drill down into any of those numbers.