When children live with both parents, courts rarely, if ever direct the parents how to provide financial support for their children. However, when the parents are not together, courts often order one parent to pay the other an amount set as financial support of the child. In such situations, one parent (the "obligee") receives child support, and the other parent (the "obligor") is ordered to pay child support. The amount of child support may be set on a case-by-case basis or by a formula estimating the amount thought that parents should pay to financially support their children.