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USD ($)

USD ($) / shares

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&lt;tr&gt;
&lt;td&gt;
&lt;div style="PADDING-RIGHT: 0pt; PADDING-LEFT: 0pt; PADDING-BOTTOM: 0pt; MARGIN-LEFT: 20%; WIDTH: 60%; PADDING-TOP: 0pt; POSITION: relative"&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;!-- COMMAND=ADD_TABLEWIDTH,"100%" --&gt;&lt;/font&gt;&lt;/p&gt;
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&lt;td style="FONT-FAMILY: times" align="left"&gt;&lt;/td&gt;
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&lt;th style="FONT-FAMILY: times" align="left" colspan="2"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;
&lt;th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="5"&gt;&lt;font size="1"&gt;&lt;b&gt;At March&amp;nbsp;31, &lt;/b&gt;&lt;/font&gt;&lt;/th&gt;
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&lt;th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"&gt;&lt;font size="1"&gt;&lt;b&gt;2011 &lt;/b&gt;&lt;/font&gt;&lt;/th&gt;
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&lt;th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"&gt;&lt;font size="1"&gt;&lt;b&gt;2010 &lt;/b&gt;&lt;/font&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="bottom"&gt;
&lt;th style="FONT-FAMILY: times" align="left" colspan="2"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times" align="center" colspan="5"&gt;&lt;font size="1"&gt;&lt;b&gt;(in&amp;nbsp;thousands,&amp;nbsp;except&lt;br /&gt;
per share amounts)&lt;/b&gt;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;&lt;/tr&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Stock options&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;22,453&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;21,088&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Weighted-average exercise price (per share)&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;31.73&lt;/font&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;32.11&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Convertible senior subordinated notes&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;8,192&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;&amp;#151;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
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&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Conversion price (per share)&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;n/a&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Unvested restricted stock and restricted stock units&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;2,206&lt;/font&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;1,904&lt;/font&gt;&lt;/td&gt;
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</NonNumbericText><NonNumericTextHeader>&lt;!-- User-specified TAGGED TABLE --&gt;













&amp;nbsp;
&amp;nbsp;
At March&amp;nbsp;31,
&amp;nbsp;

&amp;nbsp;
&amp;nbsp;
2011
&amp;nbsp;
2010</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>This element may be used to capture the complete disclosure for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 128
 -Paragraph 40
 -Subparagraph c

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