I am moving to Europe to live with my son who is 17. My ex-wife will live in GA with our daughter who is 14.

My gross income is 160K per year. My ex-wife will probably make somewhere between 40K and 50K per year.

What am I legally obligated to pay for beyond child support (if anything)?

And what is child support supposed to cover?

Alimony is out of the question since my wife cheated on me.