take a long look at something

take a long, hard look at (something)

To examine something very closely and thoroughly. After the data breach, the company is going to have to take a long hard look at their security measures. If you think that kind of behavior is OK, you need to take a long hard look at your ethics.
See also: hard, look, take
Farlex Dictionary of Idioms.

take a long (cool/hard) ˈlook at something

think about a problem or possibility very carefully: After taking a long hard look at the cost of employing an extra person, we decided against it. We need to take a long look at the plan before we make a decision.
See also: long, look, something, take
Farlex Partner Idioms Dictionary
See also:
  • no stranger to (something)
  • think twice
  • think twice about
  • think twice about something/about doing something
  • think twice, to
  • not stand the sight of (someone or something)
  • be sick of (something)
  • be one over (the) eight
  • know (someone or something) like a book
  • know like a book