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 7, 2013 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/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* 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/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* 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/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* WARBURG PINCUS X LLC By: Warburg Pincus Partners, LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* WARBURG PINCUS PARTNERS, LLC By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* WARBURG PINCUS & CO. By: /s/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact* WARBURG PINCUS LLC By: /s/ Scott A. Arenare Name: Scott A. Arenare Title: Managing Director CHARLES R. KAYE By: /s/ Scott A. Arenare Scott A. Arenare, Attorney-in-Fact* JOSEPH P. LANDY By: /s/ Scott A. Arenare Scott A. Arenare, Attorney-in-Fact* * The Power of Attorney given by each of Warburg Pincus & Co., Mr. Kaye and Mr. Landy was previously filed with the U.S. Securities & Exchange Commission on January 11, 2013 as an exhibit to a statement on Schedule 13D/A filed by Warburg Pincus Private Equity X, L.P. with respect to Talon Therapeutics, Inc. and is hereby incorporated by reference.