Under ASC 350, if we conclude that it is more likely than not that the fair value of a reporting unit exceeds the carrying amount,
we are not required to perform the annual quantitative two-step impairment test. We used the qualitative assessment approach in
connection with our 2014 annual impairment evaluation for the ERG and RCH reporting units and the 2012 annual impairment
evaluation for the AQH and ERG reporting units. We used the quantitative assessment approach in connection with our 2014 annual
evaluation for the AQH and SCS reporting units, our 2013 annual impairment evaluation for the AQH, legacy TECH and ERG
reporting units and our 2012 annual impairment evaluation for the legacy TECH reporting unit. As discussed further below, we also
performed an interim impairment evaluation as of the end of the second quarter of 2014 for the legacy TECH, SCS and AVC
reporting units, which resulted in a goodwill impairment charge of approximately $4.4 million for the AVC reporting units. There
were no indicators of impairment for legacy TECH and SCS in connection with the interim impairment test.