great, can you give me the organization type and detail too?
SELECT T1.organisation_id ,  T1.organisation_type ,  T1.organisation_details FROM Organisations AS T1 JOIN Research_Staff AS T2 ON T1.organisation_id   =   T2.employer_organisation_id GROUP BY T1.organisation_id ORDER BY count ( * )  DESC LIMIT 1
organization type and detail refers to organisation_type and organisation_details respectively; the query is selecting the organization with the highest count of research staff;