So do deists generally believe in a non-interventionist God?
Through most of the history of the word, that's been the defining tenet--stipulating that it's a reasoned approach to the existence of God. But in modern times, there have been many hyphenated mutations of the word:
Classic-Deism, Ceremonial-Deism, Intuitive-Deism, Moralistic/Therapeutic-Deism, Christian-Deism (GAAH!), Continental-Deism, Modern-Deism, Monodeism, Pandeism, Panendeism, Process-Deism, Provisional-Deism, Polydeism, Scientific-Deism (oxymoron), Humanistic-Deism, Lost-In-The-Shuffle-Deism. Most of these are outright attempts to undermine the philosophy and create confusion, or efforts to make deism more diverse and inclusive regardless of the effects of such dilution.
The original deism has been designated classic(i.e. laissez faire)-deism which is pretty much as a put down for being outdated and passe. The most common modern reiteration of the philosophy is that deism is simply a reasoned approach to God. Fine, but that's nothing more that agnosticism.