How to get div content height

How to get div content height

I have div that's 200px high the code below loads the content into div:
  1. $(function() {               
         $("div#t_and_c_div").load("https://localhost/pages/t_and_c.html");
    });

I want to get the height of the entire document loaded into div, but when I use $("div#t_and_c_div").height() it returns 200 (height of the div).  Any help is greatly appreciated.