The document discusses using supporting details and outside sources in academic writing. It states that academic writing requires supporting ideas with facts, statistics, quotations, and other information from sources like books, articles, interviews, and websites. There are three ways to include outside information: quoting, summarizing, or paraphrasing. The document warns about plagiarism and explains how to properly cite sources using in-text citations and a references list to avoid plagiarism. It also discusses using quotes, statistics, and reporting verbs when incorporating outside information into academic writing.