be thorough

See: follow-up
References in classic literature ?
But I meant to be thorough in it, and I could not rest satisfied with the Spanish-English grammars I had; I was not willing to stop short of the official grammar of the Spanish Academy.
The information on an application has to be thorough and complete so that the processors and underwriters can analyze the borrower's information quickly and efficiently with a minimum of follow-up phone calls.