While Google refrains to say it, it sounds like pulling details about an individual GLCID, they are happy to give you aggregate data. I also want to know where every GCLID came from, which campaign, etc to associate with my buyers. But it seems that Google wants to be the source and only in aggregate.
I realize this is years after the question is answered, but this is more about all those who end up on this group due to Google's own search about this topic.