Exhibit 99.3

POWER OF ATTORNEY

Each of the undersigned hereby constitutes and appoints each of Steven G. Glenn, Robert B. Knauss and David Sreter, acting individually or jointly, with full power of substitution and resubstitution, to have full power and authority to act in its or his name, place and stead and on the undersigned’s behalf as its or his true and lawful attorney-in-fact to:

(1) execute and deliver for and on behalf of the undersigned filings, reports and schedules in accordance with Section 13 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), and Forms 3, 4 and 5 in accordance with Section 16(a) of the Exchange Act (including in each case any amendments, corrections, supplements or other changes thereto), and the rules promulgated under the Exchange Act;

(2) do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such filings, reports, schedules and forms (including any amendments, corrections, supplements or other changes thereto) and timely file such with the United States Securities and Exchange Commission and any stock exchange, self-regulatory association or any other authority or person as may be required by law; and

(3) 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 of, 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 his discretion.

The undersigned hereby grants to each attorney-in-fact full power and authority to do and perform all and every act and thing whatsoever requisite, necessary and proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as such attorney-in-fact 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 his 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. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming (i) any of the undersigned’s responsibilities to comply with the requirements of the Exchange Act or any liability for the undersigned’s failure to comply with such requirements or (ii) any obligation or liability that the undersigned incurs for profit disgorgement under Section 16(b) of the Exchange Act.

This Power of Attorney shall continue in full force and effect until revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact or by such attorneys-in-fact in a signed writing delivered to the undersigned. This Power of Attorney hereby revokes any previous Power of Attorney granted by the undersigned with respect to the matters contained herein.

IN WITNESS WHEREOF, the undersigned have executed this Power of Attorney this 27^th day of June, 2016.

WARBURG PINCUS LLC
By:	/s/ Charles R. Kaye
Name: Title:	Charles R. Kaye Member of the Executive Committee and Managing Member and Co-Chief Executive Officer
By:	/s/ Joseph P. Landy
Name: Title:	Joseph P. Landy Member of the Executive Committee and Managing Member and Co-Chief Executive Officer
CHARLES R. KAYE
/s/ Charles R. Kaye
JOSEPH P. LANDY
/s/ Joseph P. Landy