2.2.0.25falsefalse0219 - Disclosure - Dividendstruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010
USD ($) / shares
USD ($)
$Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0000780053duration2010-01-01T00:00:002010-12-31T00:00:00USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_DividendsAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalsefalsefalse | Otherxbrli:stringItemTypestringNo definition available.falsefalse
3false0us-gaap_ScheduleOfDividendsPayableTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel| 1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Note 19 - us-gaap:ScheduleOfDividendsPayableTextBlock-->
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<b><font style="font-family: 'Times New Roman', Times">19.  </font></b>
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<b><font style="font-family: 'Times New Roman', Times">Dividends</font></b>
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Dividend payments per share to the common stockholders were
characterized in the following manner for tax purposes:
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<b>Year Ended December 31,</b>
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<b>2010</b>
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<b>2009</b>
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<b>2008</b>
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Ordinary income
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$
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1.53
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</td>
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</td>
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$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
1.60
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
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<td nowrap="nowrap" align="right" valign="bottom">
0.59
</td>
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</td>
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<div style="text-indent: -10pt; margin-left: 10pt">
Return of capital
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
0.22
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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0.09
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</td>
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—
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Capital gain
</div>
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</td>
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0.07
</td>
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</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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0.07
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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1.17
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</td>
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<td style="border-top: 1px solid #000000">
 
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</td>
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</td>
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</td>
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Total dividends paid
</div>
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</td>
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$
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1.82
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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</td>
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$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
1.76
</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">
1.76
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
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<!-- Begin Block Tagged Notefalsefalsefalsefalsefalse | Otherus-types:textBlockItemTypestringThis text block may be used to disclose all or some of the information related to dividends declared, but not paid, as of the financial reporting date.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 32
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