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&lt;tr&gt;
&lt;td valign="top" width="4%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;3.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Fair Value
Measurements:&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;
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&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;In accordance
with the accounting guidance for fair value measurements and
disclosures, the Company carries its money market funds included in
cash and cash equivalents at fair value. In accordance with the
three-tier fair value hierarchy under this guidance, the Company
determined the fair value using quoted market prices, a Level 1
input as defined under the accounting guidance for fair value
measurements. At June&amp;#xA0;30, 2013 and December&amp;#xA0;31, 2012, the
Company&amp;#x2019;s money market funds had a carrying amount of $2.1
million and $11.1 million, respectively.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 6px; TEXT-INDENT: 4%; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 4%"&gt;
&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Company
also carries the cash surrender value of life insurance related to
its deferred compensation arrangements at fair value. The
investments underlying the life insurance contracts consist
primarily of exchange-traded equity securities and mutual funds
with quoted prices in active markets. In accordance with the
three-tier fair value hierarchy, the Company determined the fair
value using the cash surrender value of the life insurance, a Level
2 input as defined under the accounting guidance for fair value
measurements. At June&amp;#xA0;30, 2013 and December&amp;#xA0;31, 2012, the
Company&amp;#x2019;s cash surrender value of life insurance had a
carrying amount of $15.0 million and $13.8 million,
respectively.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 6px; TEXT-INDENT: 4%; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 4%"&gt;
&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;In addition,
the Company carries its contingent consideration liabilities
related to acquisitions completed after January&amp;#xA0;1, 2009 at
fair value. In accordance with the three-tier fair value hierarchy,
the Company determined the fair value of its contingent
consideration liabilities using the income approach with assumed
discount rates and payment probabilities. The income approach uses
Level 3, or unobservable inputs as defined under the accounting
guidance for fair value measurements. At June&amp;#xA0;30, 2013 and
December&amp;#xA0;31, 2012, the Company&amp;#x2019;s contingent
consideration liabilities had a fair value of $36.3 million and
$37.7 million, respectively. See Note 5 for more information
regarding the Company&amp;#x2019;s contingent consideration liabilities
recorded during the six months ended June&amp;#xA0;30, 2013.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 6px; TEXT-INDENT: 4%; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 4%"&gt;
&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The carrying
amounts of cash equivalents, short-term investments, accounts
receivable and accounts payable and accrued expenses approximate
fair value due to the short maturities of the respective
instruments. The carrying values of long-term investments, line of
credit and capital lease obligations approximate fair value. If the
Company&amp;#x2019;s line of credit was measured at fair value, it would
be categorized as Level 2 in the fair value hierarchy.&lt;/font&gt;&lt;/p&gt;
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