EXHIBIT 24.1

                                POWER OF ATTORNEY

                                  March 1, 2012

Know all men by these presents, that Michael S. Dell hereby constitutes and
appoints Marc R. Lisker, as the true and lawful attorney-in-fact and agent of
such party with full power and authority and full power of substitution and
resubstitution, for, in the name of, and on behalf of such party, place and
stead, in any and all capacities, (i) to execute any and all filings required by
such party under Section 13 or Section 16 of the Securities Exchange Act of
1934, as amended (the "Exchange Act") (or any similar rule with respect to
foreign exchanges) or any rule or regulation thereunder (including any
amendment, supplement, and/or exhibit thereto), for, in the name of, and on
behalf of such party, (ii) to do and perform any and all acts for, in the name
of, and on behalf of such party which said attorney-in-fact determines may be
necessary or appropriate to complete and execute any and all such filings,
amendments, supplements, and/or exhibits, and any and all other document(s) in
connection therewith, (iii) to file such filings, amendments, supplements,
exhibits, and/or documents with any governmental office or agency, whether U.S.,
foreign, state or local government (including, without limitation, the U.S.
Securities and Exchange Commission and state securities administrators or
commissions), or any stock exchange or stock quotation system (including,
without limitation, the New York Stock Exchange), as may be required under
applicable laws or rules and regulations of any stock exchange or stock
quotation system, and (iv) to perform any and all other acts that said
attorney-in-fact or agent determines may be necessary or appropriate in
connection with the foregoing that may be in the best interest of or legally
required by such party, granting unto said attorney-in-fact and agent full power
and authority to do and perform each and every act and thing requisite or
necessary to be done in and about the premises, as fully to all intents and
purposes as such party might or could do in person, hereby ratifying and
confirming all that said attorney-in-fact and agent shall do or cause to be done
by virtue hereof. Michael S. Dell hereby acknowledges that the foregoing
attorney-in-fact and agent in serving in such capacity at the request of such
party, is not assuming any of the responsibilities of such party to comply with
Section 16 or Section 13(d) of the Exchange Act and the rules and regulations
promulgated thereunder.

This Power of Attorney shall remain in full force and effect until Michael S.
Dell is no longer required to file reports under Section 13 or Section 16 of the
Exchange Act (or any similar rule with respect to foreign exchanges) or any rule
or regulation thereunder (including any amendment, supplement, and/or exhibit
thereto), unless earlier revoked by Michael S. Dell in a signed writing
delivered to Marc R. Lisker.

IN WITNESS WHEREOF, Michael S. Dell has caused this agreement to be executed and
effective as of the date first written above.

        Date: March 1, 2012             MICHAEL S. DELL

                                        By:   /s/ Michael S. Dell
                                              ----------------------------------
                                        Name: Michael S. Dell