JOINT FILING AGREEMENT

Exhibit A

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) of the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing of the Schedule 13D to which this agreement is attached and to the joint filing of all amendments thereto.

This agreement may be executed in one or more counterparts, each of which shall be considered an original counterpart, and shall become a binding agreement when each of the parties designated as signatories has executed one counterpart.

Dated: May 19, 2016				WARBURG PINCUS PRIVATE EQUITY IX, L.P.
				By:		Warburg Pincus IX GP L.P., its General Partner
				By:		WPP GP LLC, its General Partner
				By:		Warburg Pincus Partners, L.P., its Managing Member
				By:		Warburg Pincus Partners GP LLC, its General Partner
				By:		Warburg Pincus & Co., its Managing Member
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner
Dated: May 19, 2016				WARBURG PINCUS IX GP L.P.
				By:		WPP GP LLC, its General Partner
				By:		Warburg Pincus Partners, L.P., its Managing Member
				By:		Warburg Pincus Partners GP LLC, its General Partner
				By:		Warburg Pincus & Co., its Managing Member
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner
Dated: May 19, 2016				WPP GP LLC
				By:		Warburg Pincus Partners, L.P., its Managing Member
				By:		Warburg Pincus Partners GP LLC, its General Partner
				By:		Warburg Pincus & Co., its Managing Member
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner

Dated: May 19, 2016				WARBURG PINCUS PARTNERS, L.P.
				By:		Warburg Pincus Partners GP LLC, its General Partner
				By:		Warburg Pincus & Co., its Managing Member
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner
Dated: May 19, 2016				WARBURG PINCUS PARTNERS GP LLC
				By:		Warburg Pincus & Co., its Managing Member
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner
Dated: May 19, 2016				WARBURG PINCUS & CO.
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Partner
Dated: May 19, 2016				WARBURG PINCUS LLC
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxxx
						Title:		Managing Director
Dated: May 19, 2016				XXXXXXX X. XXXX
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxxx X. Xxxx
						By:		Xxxxxx X. Xxxxxx, Attorney-in-Fact*
Dated: May 19, 2016				XXXXXX X. XXXXX
				By:		/s/ Xxxxxx X. Xxxxxx
						Name:		Xxxxxx X. Xxxxx
						By:		Xxxxxx X. Xxxxxx, Attorney-in-Fact*

* The Power of Attorney given by each of Xx. Xxxx and Xx. Xxxxx was previously filed with the U.S. Securities & 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, Inc. (f/k/a Laredo Petroleum Holdings, Inc.) and is hereby incorporated by reference.