Reduction of Goodwill related to the subsequent exercise of certain stock options and vesting of certain restricted stock units that were recorded at fair value in connection with the July 2008 merger between our wholly owned subsidiary, Vernon Merger Corporation, and XM Satellite Radio Holdings Inc. ("the Merger") as a result of the release of the deferred income tax valuation allowance.

No definition available.

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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