IDIOMS

farm out

(transitive, idiomatic, business) To subcontract (a task, responsibility, etc.) to another; to outsource.

Example: 1911, Upton Sinclair, The Machine, Act II:
  These companies are simply paper companies . . . they farm out the contracts to the real builders.
2009 Jan. 5, Mark Thompson, "Another Gitmo Grows in Afghanistan," Time:
  The U.S. military had hoped to farm out the Bagram detainees to prisons run by Afghanistan and other nations.