2.2.0.25falsefalse0214 - Disclosure - Commitments and Contingenciestruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011
USD ($)
USD ($) / shares
$Jan-01-2011_Mar-31-2011http://www.sec.gov/CIK0001267395duration2011-01-01T00:00:002011-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0ahl_CommitmentsAndContingenciesAbstractahlfalsenadurationCommitments and Contingencies [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalsefalsefalse | Otherxbrli:stringItemTypestringCommitments and Contingencies [Abstract]falsefalse
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<!-- Begin Block Tagged Note 14 - us-gaap:CommitmentsAndContingenciesPolicyTextBlock-->
<div style="margin-left: 0%">
<div style="margin-top: 12pt; font-size: 1pt"> 
</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 11pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left">
<tr>
<td width="5%"></td>
<td width="95%"></td>
</tr>
<tr valign="top">
<td>
<b><font style="font-family: 'Times New Roman', Times">14.  </font></b>
</td>
<td>
<b><font style="font-family: 'Times New Roman', Times">Commitments
and Contingencies</font></b>
</td>
</tr>
</table>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 11pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left">
<tr>
<td width="5%"></td>
<td width="95%"></td>
</tr>
<tr valign="top">
<td>
<b><font style="font-family: 'Times New Roman', Times">(a)  </font></b>
</td>
<td>
<b><font style="font-family: 'Times New Roman', Times">Restricted
assets</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
We are obliged by the terms of our contractual obligations to
U.S. policyholders and by undertakings to certain
regulatory authorities to facilitate the issue of letters of
credit or maintain certain balances in trust funds for the
benefit of policyholders.
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
The following table shows the forms of collateral or other
security provided to policyholders as at March 31, 2011 and
December 31, 2010.
</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: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">
<!-- Table Width Row BEGIN -->
<tr style="font-size: 1pt" valign="bottom">
<td width="61%"> </td><!-- colindex=01 type=maindata -->
<td width="2%"> </td><!-- colindex=02 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=02 type=lead -->
<td width="14%" 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="16%" align="right"> </td><!-- colindex=03 type=body -->
<td width="1%" align="left"> </td><!-- colindex=03 type=hang1 -->
</tr>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>As at March 31, 2011</b>
</td>
<td>
 
</td>
<td>
 
</td>
<td colspan="2" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>As at December 31, 2010</b>
</td>
<td>
 
</td>
</tr>
<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="6" align="center" valign="bottom">
<b>($ in millions, except percentages)</b>
</td>
<td>
 
</td>
</tr>
<tr style="line-height: 3pt; font-size: 1pt">
<td> 
</td>
</tr>
<!-- TableOutputBody -->
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
Assets held in multi-beneficiary trusts
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
1,871.6
</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">
1,895.7
</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: 10pt">
Assets held in single-beneficiary trusts
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
58.3
</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">
58.2
</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">
Secured letters of credit(1)
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
624.5
</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">
533.8
</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>
</tr>
<tr valign="bottom">
<td nowrap="nowrap" align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Total
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
2,554.4
</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">
2,487.7
</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>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 20pt">
Total as % of cash and invested assets
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
34.5
</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">
34.2
</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>
</tr>
</table>
<div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
</div>
<div style="margin-top: 6pt; font-size: 1pt"> 
</div>
<div style="font-size: 1pt; margin-left: 0%; width: 13%; align: left; border-bottom: 1pt solid #000000">
</div>
<div style="margin-top: 3pt; font-size: 1pt"> 
</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">
<tr>
<td width="2%"></td>
<td width="1%"></td>
<td width="97%"></td>
</tr>
<tr>
<td align="right" valign="top">
<font style="font-size: 10pt">(1)
</font></td>
<td></td>
<td valign="bottom">
<font style="font-size: 10pt">As of March 31, 2011, the
Company had funds on deposit of $919.2 million and
£19.3 million (December 31, 2010 —
$699.9 million and £30.0 million) as collateral
for the secured letters of credit.
</font></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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
On April 29, 2009, Aspen Bermuda replaced its existing
letter of credit facility with Citibank Europe dated
October 29, 2008 in a maximum aggregate amount of up to
$450 million with a new letter of credit facility in a
maximum aggregate amount of up to $550 million. The Company
had $383.8 million of outstanding collateralized letters of
credit under this facility at March 31, 2011.
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
On February 28, 2011, Aspen U.K. and Aspen Bermuda entered
into an amendment to the $200.0 million secured letter of
credit facility agreement with Barclays Bank PLC
(“Barclays”) dated as of October 6, 2009. The
Amendment extends the maturity date of the credit facility to
December 31, 2013. All letters of credit issued under the
facility are used to support reinsurance obligations of the
parties to the agreement and their respective subsidiaries. The
Company had $119.9 million of outstanding collateralized
letters of credit under this facility at March 31, 2011.
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
On July 31, 2010, Aspen Holdings and its various
subsidiaries replaced its then existing $450.0 million
revolving credit facility with a three year $280.0 million
revolving credit facility.
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<i>Funds at Lloyd’s.</i>  AUL operates in
Lloyd’s as the corporate member for Syndicate 4711.
Lloyd’s determines Syndicate 4711’s required
regulatory capital principally based on the syndicate’s
annual business plan. Such capital, called Funds at
Lloyd’s, comprises: cash, investments and a fully
collateralized letter of credit. The amounts of cash,
investments and letter of credit at March 31, 2011 amounted
to $229.5 million (December 31, 2010 —
$230.3 million).
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<i>Interest-rate Swaps.</i>  Non-cash collateral with
a fair value of $9.4 million as at March 31, 2011
(December 31, 2010 — $7.7 million) was
transferred by our counterparty. In accordance with FASB
ASC 860 Topic Transfers and Servicing, no amount has been
recorded in our balance sheet for the pledged assets. None of
the collateral has been sold or
<font style="white-space: nowrap">re-pledged.</font>
</div>
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</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 11pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left">
<tr>
<td width="5%"></td>
<td width="95%"></td>
</tr>
<tr valign="top">
<td>
<b><font style="font-family: 'Times New Roman', Times">(b)  </font></b>
</td>
<td>
<b><font style="font-family: 'Times New Roman', Times">Operating
leases</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
Amounts outstanding under operating leases net of subleases as
of March 31, 2011 were:
</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: 'Times New Roman', Times; color: #000000; background: transparent; text-align: left">
<!-- Table Width Row BEGIN -->
<tr style="font-size: 1pt" valign="bottom">
<td width="59%"> </td><!-- colindex=01 type=maindata -->
<td width="2%"> </td><!-- colindex=02 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=02 type=lead -->
<td width="1%" 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="1%" 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="1%" align="right"> </td><!-- colindex=04 type=body -->
<td width="1%" align="left"> </td><!-- colindex=04 type=hang1 -->
<td width="3%"> </td><!-- colindex=05 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=05 type=lead -->
<td width="1%" align="right"> </td><!-- colindex=05 type=body -->
<td width="1%" align="left"> </td><!-- colindex=05 type=hang1 -->
<td width="3%"> </td><!-- colindex=06 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=06 type=lead -->
<td width="1%" align="right"> </td><!-- colindex=06 type=body -->
<td width="1%" align="left"> </td><!-- colindex=06 type=hang1 -->
<td width="3%"> </td><!-- colindex=07 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=07 type=lead -->
<td width="1%" align="right"> </td><!-- colindex=07 type=body -->
<td width="1%" align="left"> </td><!-- colindex=07 type=hang1 -->
<td width="3%"> </td><!-- colindex=08 type=gutter -->
<td width="1%" align="right"> </td><!-- colindex=08 type=lead -->
<td width="1%" align="right"> </td><!-- colindex=08 type=body -->
<td width="1%" align="left"> </td><!-- colindex=08 type=hang1 -->
</tr>
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<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
<b>Later<br />
</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom">
 
</td>
</tr>
<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2011</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2012</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2013</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2014</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>2015</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>Years</b>
</td>
<td>
 
</td>
<td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
<b>Total</b>
</td>
</tr>
<tr style="font-size: 8pt" valign="bottom" align="center">
<td nowrap="nowrap" align="center" valign="bottom">
 
</td>
<td>
 
</td>
<td colspan="27" align="center" valign="bottom">
<b>($ in millions)</b>
</td>
</tr>
<tr style="line-height: 3pt; font-size: 1pt">
<td> 
</td>
</tr>
<!-- TableOutputBody -->
<tr valign="bottom">
<td align="left" valign="bottom">
<div style="text-indent: -10pt; margin-left: 10pt">
Operating Lease Obligations
</div>
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
7.6
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
8.5
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
8.3
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
7.5
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
7.3
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
16.2
</td>
<td nowrap="nowrap" align="left" valign="bottom">
 
</td>
<td>
 
</td>
<td nowrap="nowrap" align="right" valign="bottom">
$
</td>
<td nowrap="nowrap" align="right" valign="bottom">
55.4
</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: 11pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
</div>
<div style="margin-top: 12pt; font-size: 1pt"> 
</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 11pt; font-family: Arial, Helvetica; color: #000000; background: transparent; text-align: left">
<tr>
<td width="4%"></td>
<td width="96%"></td>
</tr>
<tr valign="top">
<td>
<b><font style="font-family: 'Times New Roman', Times">(c)  </font></b>
</td>
<td>
<b><font style="font-family: 'Times New Roman', Times">Variable
interest entities</font></b>
</td>
</tr>
</table>
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<i>Cartesian Iris 2009A L.P and Cartesian Iris Offshore
Fund L.P.</i>  As disclosed in Note 6, on
May 19, 2009, Aspen Holdings invested $25.0 million in
Cartesian Iris 2009A L.P. through its wholly-owned subsidiary,
Acorn Limited. Cartesian Iris 2009A L.P. is a Delaware Limited
Partnership formed to provide capital to Iris Re, a Class 3
Bermudian reinsurer focusing on insurance-linked securities. On
June 1, 2010, the investment in Cartesian Iris 2009A L.P.
matured and was reinvested in the Cartesian Iris Offshore
Fund L.P. The Company’s involvement with Cartesian
Iris Offshore Fund L.P. is limited to its investment in the
fund, and it is not committed to making further investments in
Cartesian Iris Offshore Fund L.P.; accordingly, the
carrying value of the investment represents the Company’s
maximum exposure to a loss as a result of its involvement with
the partnership at each balance sheet date.
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In addition to returns on our investment, we provide services on
risk selection, pricing and portfolio design in return for a
percentage of profits from Iris Re. In the three months ended
March 31, 2011 no fees were payable to us.
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The Company has determined that each of Cartesian Iris 2009A
L.P. and Cartesian Iris Offshore Fund L.P. has the
characteristics of a variable interest entity that are addressed
by the guidance in ASC 810, <i>Consolidation</i>. Neither
Cartesian Iris 2009A L.P. nor Cartesian Iris Offshore
Fund L.P. is consolidated by the Company. The Company has
no decision-making power, those powers having been reserved for
the general partner. The arrangement with Cartesian Iris
Offshore Fund L.P. is simply that of an investee to which
the Company provides additional services.
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