According to the updated Google webmaster guidelines (Jan 2016), tabbed or not immediately visible content will have even less value than previously.
"Make your site's important content visible by default. Google is able to crawl HTML content hidden inside navigational elements such as tabs or expanding sections, however we consider this content less accessible to users, and believe that you should make your most important information visible in the default page view."
Summary of changes here: https://www.seroundtable.com/changes-in-the-google-webmaster-guidelines-21551.html