AGREEMENT OF JOINT FILING

Exhibit 1

AGREEMENT OF JOINT FILING

This joint filing agreement (this “Agreement”) is made and entered into as of this 10th day of February 2017, by and among Silver Lake Partners III, L.P., Silver Lake Technology Investors III, L.P., SLP Denali Co-Invest, L.P., SLP Denali Co-Invest GP, L.L.C., Silver Lake Technology Associates III, L.P., SLTA III (GP), L.L.C., Silver Lake Partners IV, L.P., Silver Lake Technology Investors IV, L.P., Silver Lake Technology Associates IV, L.P., SLTA IV (GP), L.L.C. and Silver Lake Group, L.L.C.

The parties to this Agreement hereby agree to prepare jointly and file timely (and otherwise to deliver as appropriate) all filings on any Form 3, Form 4, Form 5 or Schedule 13D or Schedule 13G, and any and all amendments thereto and any other document relating thereto (collectively, the “Filings”) required to be filed by them pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Each party to this Agreement further agrees and covenants to the other parties that it will fully cooperate with such other parties in the preparation and timely filing (and other delivery) of all such Filings.

This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the same instrument.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first set forth above.

Dated: February 10, 2017

Silver Lake Partners III, L.P.
By:		Silver Lake Technology Associates III, L.P., its general partner
		By:		SLTA III (GP), L.L.C., its general partner
				By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
Silver Lake Technology Investors III, L.P.
By:		Silver Lake Technology Associates III, L.P., its general partner
		By:		SLTA III (GP), L.L.C., its general partner
				By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer

SLP Denali Co-Invest, L.P.
By:		SLP Denali Co-Invest GP, L.L.C., its general partner
		By:		Silver Lake Technology Associates III, L.P., its managing member
				By:		SLTA III (GP), L.L.C., its general partner
						By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
SLP Denali Co-Invest GP, L.L.C.
By:		Silver Lake Technology Associates III, L.P., its managing member
		By:		SLTA III (GP), L.L.C., its general partner
				By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
Silver Lake Technology Associates III, L.P.
By:		SLTA III (GP), L.L.C., its general partner
		By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer

SLTA III (GP), L.L.C.
By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer

Silver Lake Partners IV, L.P.
By:		Silver Lake Technology Associates IV, L.P., its general partner
		By:		SLTA IV (GP), L.L.C., its general partner
				By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
Silver Lake Technology Investors IV, L.P.
By:		Silver Lake Technology Associates IV, L.P., its general partner
		By:		SLTA IV (GP), L.L.C., its general partner
				By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
Silver Lake Technology Associates IV, L.P.
By:		SLTA IV (GP), L.L.C., its general partner
		By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
SLTA IV (GP), L.L.C.
By:		Silver Lake Group, L.L.C., its managing member
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer
Silver Lake Group, L.L.C.
By:		/s/ Xxxxx X. Xxxx
		Name:		Xxxxx X. Xxxx
		Title:		Managing Director and Chief Legal Officer