POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes
and appoints Mary Ann Sigler as the undersigned's true and lawful
attorney-in-fact, with full power of substitution, for and in the name, place
and stead of the undersigned, in any and all capacities, to:

         (1) prepare and execute for and on behalf of the undersigned Forms 3,
4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder, including any joint filing agreement thereunder, and
do and perform any and all acts for and on behalf of the undersigned which may
be necessary or desirable to complete and execute any such Form 3, 4, or 5, or
complete and execute any amendment or amendments thereto;

         (2) prepare and execute for and on behalf of the undersigned reports of
ownership on Schedule 13D or 13G under the Securities Exchange Act of 1934 and
the rules thereunder, including any joint filing agreement thereunder, and do
and perform any and all acts for and on behalf of the undersigned which may be
necessary or desirable to complete and execute any such reports or schedules,
and complete and execute any amendment or amendments thereto; and

         (3) timely file such forms with the U.S. Securities and Exchange
Commission and any stock exchange or similar authority, and to take any other
action of any type whatsoever in connection with the foregoing which, in the
opinion of such attorney-in-fact, may be of benefit to, in the best interest of,
or legally required by, the undersigned, it being understood that the documents
executed by such attorney-in-fact on behalf of the undersigned pursuant to this
Power of Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such attorney-in-fact's
discretion.

         The undersigned hereby grants to such attorney-in-fact full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as
she might or could do in person, hereby ratifying and confirming all that said
attorney-in-fact, or her substitute or substitutes, may lawfully do or cause to
be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 28th day of October, 2010.

                                         Tom Gores

                                         /s/ Tom Gores
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