CREATE TABLE Research_Staff (employer_organisation_id VARCHAR)
CREATE TABLE Organisations (organisation_id VARCHAR, organisation_type VARCHAR, organisation_details VARCHAR)

Which organisation hired the most number of research staff? List the organisation id, type and detail.
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
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 NULLS LAST LIMIT 1