Where is this from? How old is the document it came from?

It's from 1994. source: Times Books/Random house.

Well, the original metal version of Palatino Italic had ascenders like that, but there was no Bold Italic back then. I do recall seeing "off" versions from other sources, such as Headliners International (a headline setting franchise), who would typically expand the weight ranges of "standard" fonts like Palatino. 1994 is awfully late for something like that--well into the modern digital font era. Kind of puzzling.