Designation of Additional Attorney-in-Fact


        KNOW ALL PERSONS BY THESE PRESENTS that Yvette Kosic, a duly appointed
attorney-in-fact of GOLDMAN, SACHS MANAGEMENT GP GMBH (the "Company"), pursuant
to that Power of Attorney, dated December 27, 2007 (the "POA"), does hereby
designate Rachel Parrish, an employee of The Goldman Sachs Group, Inc. (the
"Firm"), as an additional attorney-in-fact, with the same authority to act as
provided to the undersigned and the other attorneys-in-fact named in the POA.

        This Designation of Additional Attorney-in-Fact (this "Designation")
shall not affect the continued power of the undersigned or the other named
attorneys-in-fact to act under the POA to the full extent permitted thereby.
This Designation shall remain in full force and effect until either it or the
POA is revoked in writing by the Company or the Firm, or until such time as
the person or persons to whom power of attorney has been hereby granted
cease(s) to be an employee of the Firm or one of its affiliates.

        IN WITNESS WHEREOF, the undersigned has duly subscribed these presents
as of December 10, 2010.

GOLDMAN, SACHS MANAGEMENT GP GMBH

/s/ Yvette Kosic
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    Yvette Kosic
    Attorney-in-Fact