IDE windows overlap incorrectly

On a MacBook, at times, the "Output", main IDE window (where editors are usually contained as tabs), "Variables", or other windows overlay each other incorrectly. For example, a floating/detached "Output" window is overlaying the main IDE window and will not let other windows overlay it. At other times, clicking on the main window during a debug session results in the "Call stack" or "Variable" window overlaying the main IDE window. Of course, this is when these windows are in floating/detached or "undocked" (pick the description that fits your understanding) states. If they are part of the main IDE window that is presented when the IDE is started, they obviously cannot overlap that window. I've included a screen capture to help understand the problem. The "Variables" and "Output" windows show will come to top when clicked. But the main IDE window under them cannot be displayed on top of either of the others.