While this video is long (1 hour and 26 minutes), is detailed, and discusses data modeling and the data points model from the perspective of the FINREP taxonomy; this video will help one grasp the important general issues related to expressing information in XBRL.
You can distill the message of this video into one concise statement:
Build consistent and explicit data models.
What I have created and documented in my Modeling Business Information Using XBRL document follows those two key principles. So I could not agree more with those who support the data points model.