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Long-Lived Assets	6 Months Ended
	Jun. 30, 2010
Long-Lived Assets [Abstract]
Long-Lived Assets	11.  Long-Lived Assets We assess certain long-lived assets, such as property and equipment and intangible assets other than goodwill, for potential impairment when there is a change in circumstances that indicates carrying values of assets may not be recoverable.  Such long-lived assets are deemed to be impaired when the undiscounted cash flows expected to be generated by the asset (or asset group) are less than the asset's carrying amount.  Any required impairment loss would be measured as the amount by which the asset's carrying value exceeds its fair value, and would be recorded as a reduction in the carrying value of the related asset and a charge to operating expense.  During the three and six months ended June 30, 2011 and 2010, we had no impairment losses associated with our long-lived assets.

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Describes an entity's accounting policy for recognizing and measuring the impairment of long-lived assets, such as property and equipment and intangible assets other than goodwill. The disclosure may also indicate impairment losses, if any, for the period.

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