EXHIBIT 99.1 SIGNATURES OF REPORTING PERSONS After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this Form 4 is true, complete and correct. August 13, 2014 WARBURG PINCUS PRIVATE EQUITY X, L.P. By: Warburg Pincus X, L.P., its general partner By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS X PARTNERS, L.P. By: Warburg Pincus X, L.P., its general partner By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS X, L.P. By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS X LLC By: Warburg Pincus Partners LLC, its sole member. By: Warburg Pincus & Co., its managing member By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS PARTNERS LLC By: Warburg Pincus & Co., its managing member By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS & CO. By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Partner WARBURG PINCUS LLC By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss Managing Director CHARLES R. KAYE By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss, Attorney-in-Fact* JOSEPH P. LANDY By: /s/ Robert B. Knauss -------------------------------------------- Robert B. Knauss, Attorney-in-Fact* * Power of Attorney given by Mr. Kaye and Mr. Landy was previously filed with the United States Securities and Exchange Commission on November 26, 2013 as an exhibit to a statement on Form 4 filed by Warburg Pincus Private Equity IX, L.P. with respect to Laredo Petroleum Holdings, Inc. and is hereby incorporated by reference.