Exhibit 24

                               POWER OF ATTORNEY

       The undersigned understands that, from time to time, the Carlyle
Companies (defined below) are required to prepare, execute and file certain
federal and state securities laws filings.

       Know all by these presents, that the undersigned hereby constitutes and
appoints each of Jeffrey Ferguson, Jeremy Anderson, Joanne Cosiol, Anne
Frederick, Kevin Gasque, Erica Herberg, Norma Kuntz, Joshua Lefkowitz, David
Lobe, Karen McMonagle, Aditya Narain, Michelle Reing, Ryan Toteja and Catherine
Ziobro, or any of them signing singly, and with full power of substitution, the
undersigned's true and lawful attorney-in-fact to:


    (1)   prepare, execute in the name of each Carlyle Company and on behalf of
          each Carlyle Company, and submit to the U.S. Securities and Exchange
          Commission (the "SEC") a Form ID, including amendments thereto, and
          any other documents necessary or appropriate to obtain codes and
          passwords enabling the undersigned to make electronic filings with the
          SEC of Forms D ("Form D") required to be filed in accordance with Rule
          503 ("Rule 503") promulgated with respect to Sections 4(2), 4(6) and
          3(b) of the Securities Act of 1933 (the "1933 Act") and reports
          required by Sections 13(d) and 16(a) of the Securities Exchange Act of
          1934 (the "1934 Act") or any rule or regulation of the SEC;


    (2)   prepare and execute for and on behalf of each Carlyle Company, in the
          undersigned's capacity as a Chairman, authorized person, officer
          and/or director of each Carlyle Company, federal and state securities
          laws filings including without limitation Forms D pursuant to Rule 503
          and Schedules 13D and 13G and Forms 3, 4, and 5 in accordance with
          Sections 13(d) and 16(a) of the 1934 Act and the rules thereunder;


    (3)   do and perform any and all acts for and on behalf of each Carlyle
          Company which may be necessary or desirable to complete and execute
          any such federal and state securities laws filings including without
          limitation Forms D, Schedules 13D and 13G and Forms 3, 4, and 5,
          complete and execute any amendment or amendments thereto, and timely
          file such form with the SEC and the securities administrators of any
          state, the District of Columbia, the Commonwealth of Puerto Rico, Guam
          and the United States Virgin Islands or their designees and any stock
          exchange or similar authority; and


    (4)   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 each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes  as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted, whether the same needs to be executed, taken
or done by him in his capacity as a current or former member, partner,
shareholder, director or officer of any company, partnership, corporation,
organization, firm, branch or other entity connected with, related to or
affiliated with any of the entities constituting the Carlyle Companies or
entities that directly or indirectly hold interests in the Carlyle Companies.

       The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming any
of the undersigned's responsibilities to comply with federal and state
securities laws, including without limitation Rule 503 of the 1933 Act or
Section 13 and Section 16 of the 1934 Act.

       This Power of Attorney and all authority conferred hereby shall not be
terminated by operation of law, whether by the death or incapacity of the
undersigned or by occurrence of any other event. Actions taken by an attorney-
in-fact pursuant to this Power of Attorney shall be as valid as if any event
described in the preceding sentence had not occurred, whether or not the
attorney-in-fact shall have received notice of such event. Notwithstanding the
foregoing, (i) in the event that an attorney-in-fact is no longer employed by
The Carlyle Group Employee Co., L.L.C. or its affiliates, this Power of Attorney
and all authority conferred hereby shall be immediately terminated with respect
to such Attorney, and (ii) the undersigned may terminate or revoke this Power of
Attorney at any time.

       For purposes hereof, the "Carlyle Companies" shall consist of:
(i) Carlyle Group Management L.L.C., The Carlyle Group Inc., Carlyle Holdings I
GP Inc., Carlyle Holdings I GP Sub L.L.C., Carlyle Holdings I L.P., TC Group,
L.L.C., Carlyle Holdings II GP L.L.C., Carlyle Holdings II L.L.C., CG Subsidiary
Holdings L.L.C., TC Group Investment Holdings, L.P., Carlyle Holdings III GP
Management L.L.C., Carlyle Holdings III GP L.P., Carlyle Holdings III GP Sub
L.L.C., Carlyle Holdings III L.P., TC Group Cayman L.P., TC Group Sub L.P., TC
Group Investment Holdings Sub L.P., TC Group Cayman Investment Holdings Sub
L.P., TC Group Cayman Sub L.P., Five Overseas CG Investment L.L.C. and (ii) the
subsidiaries and affiliates of the foregoing in clause (i), including without
limitation investment funds sponsored directly or indirectly by one or more of
the Carlyle Companies.

       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 1st day of January, 2020.


                                    By:     /s/ Curtis L. Buser
                                            ------------------------------------
                                    Name:   Curtis L. Buser
                                    Title:  Chief Financial Officer