. During the past three fiscal years, we have not made any material changes in the accounting methodology that we use to assess property plant and equipment and definite-lived intangible asset impairment loss. For the foreseeable future, we do not believe there is a reasonable likelihood that there will be a material change in the estimates or assumptions that we use to calculate such impairment losses. However, as we periodically reassess estimated future cash flows and asset fair values, changes in our estimates and assumptions may cause us to realize material impairment charges in the future.