How to show dialog on top?

My dialog always seems to display with a z-index of 101. This appears under another (Telerik) window element with a z-index of 3000. I have no control over the z-index of the Telerik Window. Is there a way to change the z-index of my jQueryUI dialog so that it appears over my Telerik Window?

I'm a novice using jQueryUI 1.11.3 (the latest version)

Thanks for any advice!