Take it/something as read
Definition 1 of 1
Pro Tip 1/3Idiomatic Use
The phrase is often used in informal conversational contexts, rather than formal writing. 
Everyone here takes it as read that Dave's barbecue parties are a monthly highlight.
Pro Tip 2/3Implicit Trust
Using the phrase suggests there is widespread or implicit trust in the statement's truth without question. 
We took it as read that the project deadline would be met based on our team's track record.
Pro Tip 3/3Precedent Basis
The phrase is often based on something happening often in the past, setting a precedent. 
Since he's always early, we take it as read he'll be here at 8 sharp.