> I can't say that I have seen any party documents floating around
There are quite literally millions of well recorded documents, pictures, movies, personal accounts of affected people available about what Nazism did and does. If you do need a place to start, feel free give the Wikipedia article a read and use the underlying sources to learn more.
The Nazi Party no longer exists and you're linking to ideology in Germany at the time. We could similarly link to pretty terrible political party views of Republicans or Democrats over our history.
By no means am I defending Nazism here, I would take huge personal issue with any holding those views. That's entirely separate from the topic here though, and I don't agree with discriminating hiring processes based on political views regardless of what they are. If someone can go to work, get the job done, and be a net-positive member of the team I have no reason to act against them.
https://en.wikipedia.org/wiki/Nazism