Goodwill and Other Long-Lived Assets Goodwill impairment (Policies)

12 Months Ended

Dec. 31, 2012

Goodwill impairment accounting policy [Abstract]

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Long-lived assets, such as property, plant, and equipment, and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Recoverability of asset groups to be held and used is measured by a comparison of the carrying amount of an asset group to estimated undiscounted future cash flows expected to be generated by the asset group. If the carrying amount of an asset group exceeds its estimated future cash flows, an impairment charge is recognized in our statement of operations and as a reduction to the asset group to the extent that the fair market value of the asset group is less than its carrying value. Due to the same circumstances that required the interim goodwill impairment test and annual goodwill impairment test above, we evaluated the long-lived assets of our reporting units with goodwill for impairment for the quarters ended April 1, 2012, July 1, 2012, September 30, 2012 (VSC reporting unit only for the third quarter of 2012), and November 30, 2012, the measurement date of our annual goodwill impairment test. We determined that the carrying amount of the long-lived assets of our reporting units with goodwill did not exceed their estimated undiscounted future cash flows, and thus our total long-lived assets were not impaired as of April 1, 2012, July 1, 2012, September 30, 2012 (VSC reporting unit only for the third quarter of 2012), and November 30, 2012.