UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                 SCHEDULE 13D

                   Under the Securities Exchange Act of 1934

                         ITT EDUCATIONAL SERVICES, INC.
                  ------------------------------------------
                               (Name of Issuer)

                         COMMON STOCK, $.01 par value
                      -------------------------------------
                         (Title of Class of Securities)

                                  4506B109
                                  ---------
                               (CUSIP Number)

                              Gregory D. Hitchan
                          Blum Capital Partners, L.P.
                        909 Montgomery Street, Suite 400
                            San Francisco, CA 94133
                                (415) 434-1111
                             -------------------
               (Name, Address and Telephone Number of Person
              Authorized to Receive Notices and Communications)

                              April 2, 2004
                            -----------------
           (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(b)(3) or (4), check the following
box [ ].

*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
                                Page 1 of 12


CUSIP NO. 4506B109              SCHEDULE 13D                    Page 2 of 12

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                     BLUM CAPITAL PARTNERS, L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON              94-3205364
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*               (a) [x]
                                                                     (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
    PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                          California

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      2,481,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 2,481,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,481,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               5.4%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                          PN, IA

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!




CUSIP NO. 4506B109              SCHEDULE 13D                    Page 3 of 12

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON              RICHARD C. BLUM & ASSOCIATES, INC.

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON             94-2967812
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY
-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3
-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                          California

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      2,481,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 2,481,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,481,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               5.4%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                              CO

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP NO. 4506B109              SCHEDULE 13D                    Page 4 of 12

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                    BLUM STRATEGIC GP II, L.L.C.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON              94-3395150
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                            Delaware

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      2,481,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 2,481,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,481,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               5.4%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                  OO (Limited Liability Company)

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



 CUSIP NO. 4506B109              SCHEDULE 13D                   Page 5 of 12

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                                 RICHARD C. BLUM

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                              U.S.A.

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      2,481,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 2,481,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,481,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               5.4%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                              IN

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!




CUSIP NO. 4506B109              SCHEDULE 13D                    Page 6 of 12

Item 1.  Security and Issuer
----------------------------

This Schedule 13D relates to shares of Common Stock, $.01 par value (the
"Common Stock") of ITT Educational Services, Inc., a Delaware corporation
(the "Issuer").  The principal executive office and mailing address of the
Issuer is 13000 North Meridian Street, Carmel, Indiana 46032-1404.

Item 2.  Identity and Background
--------------------------------

This Schedule 13D is being filed by Blum Capital Partners, L.P., a California
limited partnership, ("Blum L.P."); Richard C. Blum & Associates, Inc., a
California corporation ("RCBA Inc."); Blum Strategic GP II, L.L.C., a
Delaware limited liability company ("Blum GP II"); and Richard C. Blum, the
Chairman and a substantial shareholder of RCBA Inc. and a managing member of
Blum GP II (collectively, the "Reporting Persons").

Blum L.P. is a California limited partnership whose principal business is
acting as general partner for investment partnerships and providing
investment advisory services.  Blum L.P. is an investment advisor registered
with the Securities and Exchange Commission.  The sole general partner of
Blum L.P. is RCBA Inc.

The principal business office address of Blum L.P. and RCBA Inc. is 909
Montgomery Street, Suite 400, San Francisco, California 94133.  The names of
the executive officers and directors of RCBA Inc., their addresses,
citizenship and principal occupations are as follows:

Name and               Business             Citizenship  Principal Occupation
Office Held            Address                             or Employment
--------------------  ----------------------- ---------  --------------------

Richard C. Blum       909 Montgomery St.       USA      President & Chairman,
President,            Suite 400                         Blum L.P.
Chairman & Director   San Francisco, CA 94133

Nils Colin Lind       909 Montgomery St.       Norway   Managing Partner,
Managing Partner      Suite 400                         Blum L.P.
& Director            San Francisco, CA 94133

John C. Walker        909 Montgomery St.       USA      Partner,
Partner               Suite 400                         Blum L.P.
                      San Francisco, CA 94133

Jose S. Medeiros      909 Montgomery St.       Brazil   Partner,
Partner               Suite 400                         Blum L.P.
                      San Francisco, CA 94133




CUSIP NO. 4506B109            SCHEDULE 13D                     Page 7 of 12

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  -----------------------  ---------  -------------------

Kerry L. Nelson       909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Gregory L. Jackson    909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Jeffrey A. Cozad      909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Marc T. Scholvinck    909 Montgomery St.       USA        Partner & Chief
Partner, Chief        Suite 400                           Financial Officer,
Financial Officer,    San Francisco, CA 94133             Blum L.P.
Assistant Secretary
& Director

Gregory D. Hitchan    909 Montgomery St.       USA        General Counsel
General Counsel       Suite 400                           & Secretary,
& Secretary           San Francisco, CA 94133             Blum L.P.

Blum GP II is a Delaware limited liability company whose principal business
is acting as the sole general partner of Blum Strategic Partners II, L.P.
("Blum Strategic II") and also as managing limited partner of Blum Strategic
Partners II GmbH & Co. KG ("Blum Strategic KG").

The principal business office address of Blum GP II is 909 Montgomery Street,
Suite 400, San Francisco, CA  94133.  The names of the managing members and
members of Blum GP II, their addresses, citizenship and principal occupations
are as follows:

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  -----------------------  ---------  -------------------

Richard C. Blum      909 Montgomery St.       USA       President & Chairman,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Nils Colin Lind      909 Montgomery St.       Norway    Managing Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

John C. Walker       909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Jose S. Medeiros     909 Montgomery St.       Brazil    Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133
CUSIP NO. 4506B109            SCHEDULE 13D                     Page 8 of 12

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  ----------------------  ---------  -------------------

Kerry L. Nelson      909 Montgomery St.       USA       Partner,
Member               Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Gregory L. Jackson   909 Montgomery St.       USA       Partner,
Member               Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Jeffrey A. Cozad     909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Marc T. Scholvinck   909 Montgomery St.       USA       Partner & Chief
Managing Member      Suite 400                          Financial Officer,
                     San Francisco, CA 94133            Blum L.P.

Gregory D. Hitchan   909 Montgomery St.       USA       General Counsel
General Counsel      Suite 400                          & Secretary,
                     San Francisco, CA 94133            Blum L.P.

To the best knowledge of the Reporting Persons, none of the entities or
persons identified in this Item 2 has, during the past five years, been
convicted of any criminal proceeding (excluding traffic violations or similar
misdemeanors), nor been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such
proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to,
federal or state securities laws or finding any violation with respect to
such laws.

Item 3.  Source and Amount of Funds or Other Consideration
----------------------------------------------------------

The source of funds for the purchases of securities was the working capital
of Blum L.P.'s limited partnerships and investment advisory clients and each
of the partnerships for which Blum GP II serves as the sole general partner
and managing limited partner.

Item 4.  Purpose of Transaction
-------------------------------

The purpose of the acquisition of the Common Stock is for investment, and the
acquisitions of the Common Stock were made in the ordinary course of business
and were not made for the purpose of acquiring control of the Issuer.

Although no Reporting Person has any specific plan or proposal to acquire or
dispose of the Common Stock, consistent with its investment purpose, each
Reporting Person at any time and from time to time may acquire additional
Common Stock or dispose of any or all of its Common Stock depending upon an
ongoing evaluation of the investment in the Common Stock, prevailing market


CUSIP NO. 4506B109            SCHEDULE 13D                    Page 9 of 12

conditions, other investment opportunities, liquidity requirements of the
Reporting Persons and/or other investment considerations.
Also, consistent with the investment purpose, the Reporting Persons may
engage in communications with one or more shareholders of the Issuer, one or
more officers of the Issuer and/or one or more members of the board of
directors of the Issuer and/or one or more representatives of the Issuer
regarding the Issuer, including but not limited to its operations.  The
Reporting Persons may discuss ideas that, if effected may result in any of
the following: the acquisition by persons of additional Common Stock of the
Issuer, an extraordinary corporate transaction involving the Issuer, and/or
changes in the board of directors or management of the Issuer.

Except to the extent the foregoing may be deemed a plan or proposal, none of
the Reporting Persons has any plans or proposals which relate to, or could
result in, any of the matters referred to in paragraphs (a) through (j),
inclusive, of the instructions to Item 4 of Schedule 13D.  The Reporting
Persons may, at any time and from time to time, review or reconsider their
position and/or change their purpose and/or formulate plans or proposals with
respect thereto.

Item 5.  Interest in Securities of the Issuer
---------------------------------------------

(a),(b) According to the Issuer's Definitive Proxy Statement filed on
Schedule 14A, there were 45,704,951 shares of Common Stock issued and
outstanding as of March 5, 2004.  Based on such information, after taking
into account the transactions described in Item 5(c) below, the Reporting
Persons report beneficial ownership of the following shares of Common Stock:
(i) 1,305,400 shares of Common Stock held by Blum L.P. and RCBA Inc. on
behalf of the limited partnerships for which Blum L.P. serves as the general
partner, or on behalf of an entity for which Blum L.P. serves as investment
advisor, which represents 2.9% of the outstanding shares of the Common Stock;
(ii) 1,083,400 shares of the Common Stock held by Blum GP II on behalf of the
limited partnership for which it serves as the general partner and on behalf
of the limited partnership for which it serves as the managing limited
partner, which represents 2.4% of the outstanding shares of the Common Stock;
and (iii) 46,300 shares of the Common Stock that are legally owned by The
Nuclear Decommissioning Trust of Dominion Nuclear Connecticut, Inc.
("Dominion Connecticut") and 46,300 shares of the Common Stock that are
legally owned by Virginia Electric and Power Company Qualified Nuclear
Decommissioning Trust ("Virginia Electric")(collectively, the "Investment
Advisory Clients"), with respect to which Blum L.P. has voting and investment
power.  Each Investment Advisory Client has entered into an investment
management agreement with Blum L.P., but neither Investment Advisory Client
has any contract, arrangement or understanding with the other Investment
Advisory Client, or any other Reporting Person, with respect to the
acquisition, ownership, disposition or voting of any shares of the Common
Stock.  Each Investment Advisory Client disclaims membership in a group with
any Reporting Person or with the other Investment Advisory Client, and each
disclaims beneficial ownership of any shares beneficially owned by the
Reporting Persons other than for their own account.

Voting and investment power concerning the above shares are held solely by
Blum L.P. and Blum GP II.  The Reporting Persons therefore may be

CUSIP NO. 4506B109            SCHEDULE 13D                     Page 10 of 12

deemed to be members in a group, in which case the group would be deemed to
have beneficial ownership of an aggregate of 2,481,400 shares of the Common
Stock, which is 5.4% of the outstanding Common Stock. As the sole general
partner of Blum L.P., RCBA Inc. is deemed the beneficial owner of the
securities over which Blum L.P. has voting and investment power. As Chairman,
director and a substantial shareholder of RCBA Inc., Richard C. Blum might be
deemed to be the beneficial owner of the securities beneficially owned by
RCBA Inc.  Additionally, Mr. Blum may be deemed to be the beneficial owner of
the securities over which Blum GP II has voting and investment power.

Although Mr. Blum is joining in this Schedule as a Reporting Person, the
filing of this Schedule shall not be construed as an admission that he, or
any of the other shareholders, directors or executive officers of RCBA Inc.,
managing members and members of Blum GP II, is, for any purpose,
the beneficial owner of any of the securities that are beneficially owned by
RCBA Inc. or Blum GP II.

c) During the last 60 days, the Reporting Persons purchased the following
shares of Common Stock in the open market:

Entity                            Trade Date    Shares   Price/Share
------                            ----------    ------   ------------
Investment partnerships for       02-26-04     250,000     38.7688
which Blum L.P. serves as the     03-01-04      23,200     37.9384
general partner and on behalf     03-02-04      93,500     37.0235
of an entity for which Blum L.P.  03-03-04     301,100     34.8739
serves as investment advisor.     03-04-04      25,700     35.0000
                                  03-05-04      56,200     34.9578
                                  03-08-04      74,800     34.9182
                                  03-09-04     247,800     33.0574
                                  03-10-04     131,000     31.4914
                                  03-11-04      56,200     29.2833
                                  03-26-04         600     29.9000
                                  03-31-04      12,500     30.9204
                                  04-01-04      20,700     31.4615
                                  04-07-04       5,400     32.2329
                                  04-08-04       6,700     33.6319

Entity                            Trade Date    Shares   Price/Share
------                            ----------    -------   ----------
The limited partnerships for      02-26-04     270,000     38.7688
which Blum GP II serves as the    03-01-04      25,000     37.9384
general partner and the managing  03-02-04     101,600     37.0235
limited partner.                  03-03-04     322,500     34.8739
                                  03-04-04      27,500     35.0000
                                  03-05-04       5,000     34.9578
                                  03-26-04       1,700     29.9000
                                  03-31-04      34,800     30.9204
                                  04-01-04      59,100     31.4615
                                  04-02-04      68,100     32.9415
                                  04-05-04      80,200     32.4094
                                  04-06-04      13,500     32.4999
                                  04-07-04      31,100     32.2329
                                  04-08-04      43,300     33.6319


CUSIP NO. 4506B109            SCHEDULE 13D                     Page 11 of 12


Entity                            Trade Date    Shares   Price/Share
------                            ----------    ------   ------------
The Investment Advisory           02-26-04      20,000     38.7688
Clients for which Blum L.P.       03-01-04       1,800     37.9384
serves as investment advisor.     03-02-04       8,000     37.0235
                                  03-03-04      21,400     34.8739
                                  03-04-04       1,800     35.0000
                                  03-05-04       3,800     34.9578
                                  03-08-04       5,200     34.9182
                                  03-09-04      17,200     33.0574
                                  03-10-04       9,000     31.4914
                                  03-11-04       3,800     29.2833
                                  03-26-04         200     29.9000
                                  03-31-04         200     30.9204
                                  04-01-04         200     31.4615


(d) and (e)  Not applicable.

Item 6.  Contracts, Arrangements, Understandings or Relationships with
Respect to Securities of the Issuer
-----------------------------------------------------------------------------

None of the Reporting Persons or, to the best knowledge of the Reporting
Persons, the other persons named in Item 2, is a party to any contract,
arrangement, understanding or relationship with respect to any securities of
the Issuer, including but not limited to the transfer or voting of any
securities of the Issuer, finder's fees, joint ventures, loan or option
arrangements, puts or calls, guarantees of profits, division of profits or
loss, or the giving or withholding of proxies, except (i) as previously
disclosed, or (ii) as noted above, Blum L.P. has voting and investment power
of the shares held by it for the benefit of The Investment Advisory Clients.


Item 7.  Material to be Filed as Exhibits
-----------------------------------------
Exhibit A Joint Filing Undertaking.


CUSIP NO. 4506B109             SCHEDULE 13D                    Page 12 of 12

                                 SIGNATURES

After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.

Dated:  April 12, 2004

RICHARD C. BLUM & ASSOCIATES, INC.    BLUM CAPITAL PARTNERS, L.P.
                                      By: Richard C. Blum & Associates, Inc.
                                          its general partner



By: /s/ Gregory D. Hitchan                By: /s/ Gregory D. Hitchan
    -------------------------------       -----------------------------------
    Gregory D. Hitchan                    Gregory D. Hitchan
    General Counsel and Secretary         General Counsel and Secretary




BLUM STRATEGIC GP II, L.L.C.            RICHARD C. BLUM




By: /s/ Gregory D. Hitchan              By:  /s/ Gregory D. Hitchan
     -------------------------------    ------------------------------------
     Gregory D. Hitchan                 Gregory D. Hitchan, Attorney-in-Fact
     General Counsel






CUSIP NO. 4506B109             SCHEDULE 13D                    Page 1 of 1

                                   Exhibit A
                           JOINT FILING UNDERTAKING

The undersigned, being duly authorized thereunto, hereby execute this
agreement as an exhibit to this Schedule 13D to evidence the agreement of the
below-named parties, in accordance with the rules promulgated pursuant to the
Securities Exchange Act of 1934, to file this Schedule jointly on behalf of
each such party.

Dated:  April 12, 2004

RICHARD C. BLUM & ASSOCIATES, INC.    BLUM CAPITAL PARTNERS, L.P.
                                      By: Richard C. Blum & Associates, Inc.
                                          its general partner



By: /s/ Gregory D. Hitchan                By: /s/ Gregory D. Hitchan
    -------------------------------       -----------------------------------
    Gregory D. Hitchan                    Gregory D. Hitchan
    General Counsel and Secretary         General Counsel and Secretary



BLUM STRATEGIC GP II, L.L.C.          RICHARD C. BLUM



By: /s/ Gregory D. Hitchan            By:  /s/ Gregory D. Hitchan
     -------------------------------  -------------------------------------
     Gregory D. Hitchan               Gregory D. Hitchan, Attorney-in-Fact
     General Counsel