The attention of users of this document is directed to the possibility that compliance with or adoption of XBRL US Recommendations may require use of an invention covered by patent rights. XBRL US shall not be responsible for identifying patents for which a license may be required by any XBRL US Recommendation, or for conducting legal inquiries into the legal validity or scope of those patents that are brought to its attention. XBRL US Recommendations are prospective and advisory only. Prospective users are responsible for protecting themselves against liability for infringement of patents. XBRL US takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Members of XBRL US agree to grant certain licenses under the XBRL US Intellectual Property Policy (xbrl.us/legal).