EX-99.1 2 wd13gex99_1.htm

Exhibit 99.1

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to such statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the other entity or person, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated:  June 9, 2017

	GENERATION INVESTMENT MANAGEMENT LLP
	By:	/s/ Alexander Marshall
		Name:	Alexander Marshall
		Title:	General Counsel & Chief Compliance Officer

	GENERATION INVESTMENT MANAGEMENT US LLP
	By: Generation Investment Management Services LLC Its: Partner
	By:	/s/ Peter Harris
		Name:	Peter Harris

	GENERATION IM FUND PLC
	By:	/s/ Peter Harris
		Name:	Peter Harris
		Title:	Director

	GENERATION IM GLOBAL EQUITY FUND LLC
	By:	/s/ Peter Harris
		Name:	Peter Harris