They own for-profit education companies like University of Phoenix. Read up on their history, especially the law suits, to get an idea of what the management's values are like: https://en.wikipedia.org/wiki/University_of_Phoenix
That's actually a different firm called Apollo Group (which is mostly comprised of Phoenix and a small number of other things) – Apollo Global is a much larger private equity firm with a confusingly similar name
It appears that Apollo Global is part of a consortium that bought Apollo Education Group earlier this year [1]. Looking at the press releases, those appear to be the two Apollos in question. Though, I suppose you should give them some time to see what they'll do with it.