JOINT FILING AGREEMENT
The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is
responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.
In accordance with Rule 13d-1(k)(1) promulgated under the Securities and Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other on behalf of each of them of such a statement on Schedule 13G and any amendments thereto with respect to the equity securities (as defined in Rule 13d-1(i)) of the issuer, beneficially owned by each of them. This Joint Filing Agreement shall be included as an exhibit to such Schedule 13G and any amendments thereto.
Date: February 14, 2017
RE Advisers Corporation
By: /s/Stephen J. Kaszynski
Name: Stephen J. Kaszynski
Title: President and Chief Executive Officer
National Rural Electric Cooperative Association
By: /s/ Danielle C. Sieverling
Name: Danielle C. Sieverling
Title: Vice President, Chief Risk and Compliance Officer
