Show overview and detailed information en same screen?

Do any of you have experiences with changing the overall layout of an application. The existing layout is shown with an overview grid in the top to change the records, and the detailed information in the bottom. I don't find this optimally because the overview it hard, and there is a lot of information in the same screen. Then i thought about changing the overview grid to a full screen layout and then the user have to click the record to get detailed information. The problem about this solution is that there is more clicks and it is harder to change record.

Is there if you have been working with this and do have some experience?