I don't know about you but my reading moods tend to be one genre at a time, then I switch to another for a while and so on.
At the moment my reading list is mainly history (non-fiction), but almost inevitably when I want a change from that, I'll go to something almost diametrically opposed to it. (Probably humorous fiction, knowing me and then it'll the usual crime fest with appropriate body count etc!).
I see all of this as immersing myself well and truly in the world of books and that does have benefits to my fiction. Ideas cross-pollinate, influences that lead to good story ideas can come from almost anywhere (so reading widely really means just casting your imagination's net out that bit further, which is rarely a bad thing!).
So whatever you are reading enjoy it! Who knows what ideas it might inspire in you for your own writing? (All I know is you've got to be open to the prospect of ideas coming in!).