2.2.0.25falsefalse0209 - Disclosure - Earnings Per Sharetruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010
USD ($)
USD ($) / shares
$Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0001317630duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_EarningsPerShareAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalsefalsefalse | Otherxbrli:stringItemTypestringNo definition available.falsefalse
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<tr>
<td width="3%"></td>
<td width="97%"></td>
</tr>
<tr valign="top">
<td>
<b><font style="font-family: Arial, Helvetica">9.  </font></b>
</td>
<td>
<b><font style="font-family: Arial, Helvetica">EARNINGS PER
SHARE</font></b>
</td>
</tr>
</table>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">
We report both basic and diluted earnings per share. A
reconciliation of both calculations for the years ended
December 31, 2010, 2009 and 2008 is presented in the
following table:
</div>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<table border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left">
<!-- Table Width Row BEGIN -->
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<td width="2%"> </td><!-- colindex=02 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=02 type=lead -->
<td width="10%" align="right"> </td><!-- colindex=02 type=body -->
<td width="1%" align="left"> </td><!-- colindex=02 type=hang1 -->
<td width="3%"> </td><!-- colindex=03 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=03 type=lead -->
<td width="10%" align="right"> </td><!-- colindex=03 type=body -->
<td width="1%" align="left"> </td><!-- colindex=03 type=hang1 -->
<td width="3%"> </td><!-- colindex=04 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=04 type=lead -->
<td width="10%" align="right"> </td><!-- colindex=04 type=body -->
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</tr>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="left" valign="bottom">
<b>(In thousands, except share, per share data and
percentages)</b>
</td>
<td>
 
</td>
<td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2010</b>
</td>
<td>
 
</td>
<td>
 
</td>
<td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2009</b>
</td>
<td>
 
</td>
<td>
 
</td>
<td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2008</b>
</td>
<td>
 
</td>
</tr>
<tr style="line-height: 3pt; font-size: 1pt">
<td> 
</td>
</tr>
<!-- TableOutputBody -->
<tr valign="bottom" style="background: #cceeff">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
Numerator:
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Net income
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
145,678
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
130,900
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
109,208
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Less: dividends declared — common shares, restricted
shares and deferred stock units(a)
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
(66,017
</td>
<td nowrap="nowrap" align="left" valign="bottom">
)
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
(62,392
</td>
<td nowrap="nowrap" align="left" valign="bottom">
)
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
(58,933
</td>
<td nowrap="nowrap" align="left" valign="bottom">
)
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Undistributed earnings
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
79,661
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
68,508
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
50,275
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Percentage allocated to common shares(b)
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.3
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.6
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.9
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Undistributed earnings — common shares
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
78,307
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
67,549
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,722
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Add: dividends declared — common shares
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
64,926
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
61,517
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
58,318
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Numerator for basic and diluted earnings per common share
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
143,233
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
129,066
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
108,040
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
Denominator:
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Denominator for basic earnings per common share —
weighted-average common shares
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,526,580
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,196,470
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
48,592,534
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Incremental shares for stock options and employee stock purchase
plan
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
871,459
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
880,963
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
1,035,353
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Denominator for diluted earnings per common share —
adjusted weighted-average shares and assumed conversion
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
50,398,039
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
50,077,433
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,627,887
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
Per common share net income:
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Basic
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.89
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.62
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.22
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Diluted
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.84
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.58
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2.18
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="line-height: 7pt">
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="font-size: 0pt; margin-left: 0%; width: 24%; border-bottom: 1pt solid #000000">
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -20pt; margin-left: 20pt">
(a) Includes dividends paid in the form of shares for
deferred stock units
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
(b) Weighted-average common shares outstanding
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,526,580
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,196,470
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
48,592,534
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 30pt">
Weighted-average restricted shares and deferred stock units
(participating securities)
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
842,108
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
705,716
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
517,248
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td style="border-top: 1px solid #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 30pt">
Total
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
50,368,688
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,902,186
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
49,109,782
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
</tr>
<tr valign="bottom" style="font-size: 1pt">
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
<td>
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td style="border-top: 3px double #000000">
 
</td>
<td>
 
</td>
</tr>
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 30pt">
Percentage allocated to common shares
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.3
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.6
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
98.9
</td>
<td nowrap="nowrap" align="left" valign="bottom">
%
</td>
</tr>
</table>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">
</div>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">
Our restricted stock and deferred stock units contain rights to
receive nonforfeitable dividends, and thus, are participating
securities requiring the two-class method of computing earnings
per share.
</div>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">
The retroactive application of the two-class method resulted in
a decrease in basic earnings per share of $0.03 per share for
the year ended December 31, 2008 as compared to the
earnings per share calculations used and disclosed in our
<font style="white-space: nowrap">Form 10-K</font>
for the annual period ended December 31, 2008. The
retroactive application of the two-class method decreased
diluted earnings per share by $0.01 per share for the year ended
December 31, 2008.
</div>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">
At December 31, 2010, 2009 and 2008, we had 2,436,742,
2,673,121 and 2,603,115 of outstanding stock options,
respectively. Stock options are included in the diluted earnings
per share calculation using
the treasury stock method, unless the effect of including the
stock options would be anti-dilutive. At December 31, 2010,
2009, and 2008, 225,740, 814,914 and 502,511 anti-dilutive stock
options were excluded from the diluted earnings per share
calculations, respectively.
</div>
</div>
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