Exhibit 99.1
EXHIBIT 99.1 - 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 to such a statement on
Schedule 13G with respect to the common stock of beneficially owned by each of
them. This Joint Filing Agreement shall be included as an exhibit to such
Schedule 13G.
Dated: October 5, 2010
COLUMBIA XXXXXX ASSET MANAGEMENT, LLC
By: /s/ Xxxxx X. Xxxxx
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Xxxxx X. Xxxxx
Chief Operating Officer
COLUMBIA ACORN TRUST
By: /s/ Xxxxx X. Xxxxx
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Xxxxx X. Xxxxx
Vice President, Treasurer and
Secretary
