This page contains links to more helpful information about JavaFX.
For more information about IntelliJ check out Jetbrains' website here
If for some strange reason you want to work in Eclipse instead of IntelliJ download Eclipse from eclipse.org and check out this tutorial: https://wiki.eclipse.org/Efxclipse/Tutorials
Similarly, if you want to use Netbeans, download it from netbeans.org and check out these examples: https://netbeans.org/features/java-on-client/javafx.html
If you've worked with JavaFX 2 and are wondering what's different in JavaFX 8, check this out: http://code.makery.ch/blog/update-to-javafx-8-whats-new/
Github is a popular code hosting site that allows for easy collaboration. If you haven't yet chosen a version control service, we would reccomend using Github. Github uses git to keep version control, and hosts repositories that multiple people can work on at the same time. For more information about using Github, Git, and any other information check out github's website or check out their help page. Also, if you would like a quick cheat sheet for Git commands to use with Github, check out this useful page that explains Git commands: https://training.github.com/kit/downloads/github-git-cheat-sheet.pdf
For a great code.makery JavaFX tutorial that includes information on Scene Builder, TableViews, User Interactions, CSS, storing data as XML, creating a statistics chart, and deploying applications, go here: http://code.makery.ch/library/javafx-8-tutorial/
For Oracle sample app examples getting started with JavaFX check out the following links:
If you prefer video tutorials, check out these youtube videos:
As always, be sure to search Stack Overflow for any specific questions, because you can almost always find good answers there.
If you didn't find what you're looking for here, try checking out this list of JavaFX utilities compiled by the JFX wikia page that contains a bunch of sample JavaFX applications, interfacing with external utilities, mobile, GUI/layout examples, graphics, physics, and using the net with Java FX: http://jfx.wikia.com/wiki/Code_Examples