2.2.0.25falsefalse006013 - Disclosure - Earnings per Sharetruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011
USD ($)
$FROM_Jan01_2011_TO_Mar31_2011http://www.sec.gov/CIK0001289592duration2011-01-01T00:00:002011-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_EarningsPerShareAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0us-gaap_EarningsPerShareTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<p style='margin-top:0pt; margin-bottom:12pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">Note 11</font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">—Earnings per Share</font></p><p style='margin-top:0pt; margin-bottom:12pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">In accordance with the two-class method</font><font style="font-family:Times New Roman;font-size:10pt;">,</font><font style="font-family:Times New Roman;font-size:10pt;"> undistributed net earnings (net income less dividends declared during the period) </font><font style="font-family:Times New Roman;font-size:10pt;">are allocated </font><font style="font-family:Times New Roman;font-size:10pt;">to both common stock and unvested share-based payment awards (“unvested restricted stock”). Because the common shareholders and share-based payment award holders share in dividends on a 1:1 basis, the earnings per share on undistributed earnings is equivalent. Undistributed earnings are allocated to all outstanding share-based payment awards, including those for which the requisite service period is not expected to be rendered.</font></p><p style='margin-top:0pt; margin-bottom:12pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">The following table shows the computation of the earnings per share pursuant to the two-class method:</font></p><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 15px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 441px; text-align:left;border-color:#000000;min-width:441px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="4" style="width: 144px; text-align:center;border-color:#000000;min-width:144px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">Three Months Ended</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; text-align:left;border-color:#000000;min-width:461px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="4" style="width: 144px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:144px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">March 31,</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">(in thousands, except per share amounts)</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">2011</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">2010</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Numerator</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Net income attributable to Tower Group, Inc.</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 25,685</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 13,052</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Denominator</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Weighted average common shares outstanding</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 41,794</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 45,204</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Effect of dilutive securities:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; text-align:left;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 451px; text-align:left;border-color:#000000;min-width:451px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Stock options</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 132</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 188</font></td></tr><tr style="height: 15px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 451px; text-align:left;border-color:#000000;min-width:451px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Other</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 4</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 14</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Weighted average common and potential dilutive</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 451px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:451px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">shares outstanding</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 41,930</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 45,406</font></td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Earnings per share attributable to Tower stockholders - basic</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td colspan="3" style="width: 461px; text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Common stock:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; text-align:left;border-color:#000000;min-width:64px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 15px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 451px; text-align:left;border-color:#000000;min-width:451px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;">Distributed earnings</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 64px; text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.13</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.07</font></td></tr><tr style="height: 15px"><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 451px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:451px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Undistributed earnings</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.48</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.22</font></td></tr><tr style="height: 16px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;">Earnings per share attributable to Tower stockholders - basic</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 64px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.61</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:2px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.29</font></td></tr><tr style="height: 16px"><td colspan="3" style="width: 461px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:left;border-color:#000000;min-width:461px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Earnings per share attributable to Tower stockholders - diluted</font></td><td style="width: 10px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 64px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:right;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.61</font></td><td style="width: 10px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 60px; border-top-style:solid;border-top-width:2px;border-bottom-style:solid;border-bottom-width:2px;text-align:right;border-color:#000000;min-width:60px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;"> 0.29</font></td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><p style='margin-top:12pt; margin-bottom:12pt'><font style="font-family:Times New Roman;font-size:9pt;margin-left:0px;">The computation of diluted earnings per share excludes outstanding options and other common stock equivalents in periods where inclusion of such potential common stock instruments would be anti-dilutive. </font><font style="font-family:Times New Roman;font-size:9pt;">For the </font><font style="font-family:Times New Roman;font-size:9pt;">three months ended March 31, 2011</font><font style="font-family:Times New Roman;font-size:9pt;">,</font><font style="font-family:Times New Roman;font-size:9pt;"> 193,000</font><font style="font-family:Times New Roman;font-size:9pt;"> </font><font style="font-family:Times New Roman;font-size:9pt;">options</font><font style="font-family:Times New Roman;font-size:9pt;"> and other common stock equivalents</font><font style="font-family:Times New Roman;font-size:9pt;"> to purchase Tower shares were </font><font style="font-family:Times New Roman;font-size:9pt;">ex</font><font style="font-family:Times New Roman;font-size:9pt;">cluded </font><font style="font-family:Times New Roman;font-size:9pt;">from</font><font style="font-family:Times New Roman;font-size:9pt;"> the computation of diluted earnings per share because the exercise price of the options was greater than the average market price</font><font style="font-family:Times New Roman;font-size:9pt;"> while for</font><font style="font-family:Times New Roman;font-size:9pt;"> </font><font style="font-family:Times New Roman;font-size:9pt;">the three months ended March 31, 2010,</font><font style="font-family:Times New Roman;font-size:9pt;"> 392,500</font><font style="font-family:Times New Roman;font-size:9pt;"> </font><font style="font-family:Times New Roman;font-size:9pt;">options and other common stock equivalents</font><font style="font-family:Times New Roman;font-size:9pt;"> </font><font style="font-family:Times New Roman;font-size:9pt;">wer</font><font style="font-family:Times New Roman;font-size:9pt;">e excluded. </font></p>Note 11—Earnings per ShareIn accordance with the two-class method, undistributed net earnings (net income less dividends declared during the period) arefalsefalsefalsefalsefalseOtherus-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
falsefalse12Earnings per ShareUnKnownUnKnownUnKnownUnKnownfalsetrue