Is it a good idea to have forms in a dialog/modal lightbox?

I am working on a banking application ( banker will be the end user ) where the user is required to fill several forms across the application to add various customer details, and as per the framework that we have, all the forms open in a lightbox dialog with no background interaction on click of a button.

Is this an ideal user experience ? Or navigating to a different page ( within the same workspace or context area ) would be a better approach ?

Need some insights on this. Would be great if an example of some application can also be attached.

Thanks !!