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       Fair value is defined as the exchange price that would be
       received for an asset or paid to transfer a liability (an exit
       price) in the principal or most advantageous market for the
       asset or liability in an orderly transaction between market
       participants on the measurement date.
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       The Company adopted ASC 820 as of January&amp;#160;1, 2008, with the
       exception of the application of the statement to nonfinancial
       assets and nonfinancial liabilities that are measured or
       disclosed at fair value on a non-recurring basis, which was
       delayed by ASC
       &lt;font style="white-space: nowrap"&gt;820-10-65-1,&lt;/font&gt;
       &lt;i&gt;Transition Related to FASB Staff Position
       &lt;font style="white-space: nowrap"&gt;FAS&amp;#160;157-2,&lt;/font&gt;
       Effective Date of FASB Statement No.&amp;#160;157, &lt;/i&gt;to fiscal
       years beginning after November&amp;#160;15, 2008, which the Company
       adopted January&amp;#160;1, 2009.
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       The Company utilizes a valuation hierarchy for disclosure of the
       inputs to the valuations used to measure fair value. This
       hierarchy prioritizes the inputs into three broad levels as
       follows. Level&amp;#160;1 inputs are quoted prices (unadjusted) in
       active markets for identical assets or liabilities. Level&amp;#160;2
       inputs are quoted prices for similar assets and liabilities in
       active markets or inputs that are observable for the asset or
       liability, either directly or indirectly through market
       corroboration, for substantially the full term of the financial
       instrument. Level&amp;#160;3 inputs are unobservable inputs based on
       the Company&amp;#8217;s own assumptions used to measure assets and
       liabilities at fair value. A financial asset or liability&amp;#8217;s
       classification within the hierarchy is determined based on the
       lowest level input that is significant to the fair value
       measurement.
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       At December&amp;#160;31, 2009, $0.3&amp;#160;million of the
       Company&amp;#8217;s cash and cash equivalents as well as
       $5.0&amp;#160;million of marketable securities are valued as
       level&amp;#160;1 investments. In addition, the Company held
       $8.9&amp;#160;million of investments in fixed-income securities
       valued as level&amp;#160;2 investments in the investments and other
       assets line of the consolidated balance sheet. For the year
       ended December&amp;#160;31, 2009, gains and losses on the
       investments noted above were not significant.
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