2.2.0.25falsefalse0212 - Disclosure - NET INCOME PER SHAREtruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $FROM_Jan01_2011_TO_Mar31_2011http://www.sec.gov/CIK0001013880duration2011-01-01T00:00:002011-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0EPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_EarningsPerShareAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNET INCOME PER SHARE [Abstract]3false0us-gaap_EarningsPerShareTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00(12)       NET INCOME PER SHAREThe following table sets forth the computation of basic and diluted shares for the periods indicated (amounts in thousands):<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 348px; text-align:left;border-color:#000000;min-width:348px;"> </td><td colspan="5" style="width: 228px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:228px;">Three Months Ended March 31,</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 348px; text-align:left;border-color:#000000;min-width:348px;"> </td><td colspan="2" style="width: 108px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:108px;">2011</td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 108px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:108px;">2010</td></tr><tr style="height: 20px"><td colspan="4" style="width: 384px; text-align:left;border-color:#000000;min-width:384px;">Shares used in basic earnings per share calculation</td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 57,190</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 61,877</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="3" style="width: 372px; text-align:left;border-color:#000000;min-width:372px;">Effect of dilutive securities:</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; text-align:left;border-color:#000000;min-width:96px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; text-align:left;border-color:#000000;min-width:96px;"> </td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 360px; text-align:left;border-color:#000000;min-width:360px;">Stock options</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; text-align:right;border-color:#000000;min-width:96px;"> 951</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; text-align:right;border-color:#000000;min-width:96px;"> 1,011</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 360px; text-align:left;border-color:#000000;min-width:360px;">Restricted stock units</td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 656</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 595</td></tr><tr style="height: 17px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 348px; text-align:left;border-color:#000000;min-width:348px;">Total effects of dilutive securities</td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 1,607</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:96px;"> 1,606</td></tr><tr style="height: 18px"><td colspan="4" style="width: 384px; text-align:left;border-color:#000000;min-width:384px;">Shares used in dilutive earnings per share calculation</td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:96px;"> 58,797</td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:96px;"> 63,483</td></tr><tr style="height: 18px"><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 348px; text-align:left;border-color:#000000;min-width:348px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:96px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 96px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:96px;"> </td></tr></table></div>For the three months ended March 31, 2011 and 2010, options to purchase 0.1 million and 0.2 million shares of common stock, respectively, were outstanding, but not included in the computation of diluted net income per share because the exercise price exceeded the value of the shares and the effect would have been anti–dilutive. For the three months ended March 31, 2011 and 2010, restricted stock units (“RSUs”) of 0.5 million and 0.7 million, respectively, were outstanding, but not included in the computation of diluted net income per share because the effect would have been anti-dilutive.(12)       NET INCOME PER SHAREThe following table sets forth the computation of basic and diluted shares for the periodsfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element may be used to capture the complete disclosure pertaining to an entity's earnings per share.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 falsefalseNET INCOME PER SHARE12NET INCOME PER SHAREUnKnownUnKnownUnKnownUnKnownfalsetrue