The carrying amount of goodwill as of September 30, 2011, is as follows:
Amount
Balance as of March 31, 2011
$
120,750
Foreign currency translation impact
(4,548
)
Balance as of September 30, 2011
$
116,202
The excess purchase price over the fair value of assets acquired is recorded as goodwill. As we have one operating segment, we allocate goodwill to one reporting unit for goodwill impairment testing. Goodwill is tested for impairment on an annual basis, and between annual tests if indicators of potential impairment exist, using a fair-value-based approach based on the market capitalization of the reporting unit. Our annual impairment test will be performed as of January 1, 2012. Goodwill is not deductible for tax purposes.