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Commitments and Contingencies &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;"&gt;(a) Concentration of Credit Risk &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;"&gt;Fixed maturities&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company's investment portfolio is managed following prudent standards of diversification and a prudent investment philosophy. The Company is not exposed to any significant credit concentration risk on its investments, except for debt securities issued or guaranteed by the &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;U.S.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; government and other AAA rated sovereign governments. As of December 31, 2010, the Company's fixed maturity investments included $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;846&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million, or &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;11.7&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;% of the Company's total shareholders' equity, of AAA rated debt securities issued by the government of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;France&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. As of December&amp;#160;31, 2009, the Company's fixed maturity investments included $814 million, or 10.6% of the Company's total shareholders' equity, of AAA rated debt securities issued by the government of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;France&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. The Company keeps cash and cash equivalents in several banks and may keep up to $500 million, excluding custodial accounts, at any point in time in any one bank. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;"&gt;Derivatives&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company's investment strategy allows for the use of derivative instruments, subject to strict limitations. Derivative instruments may be used to&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; replicate investment positions&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;and &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;manage currency, market exposure and duration risk, or to enhance investment performance that would be allowed under the Company's investment policy if implemented in other ways. The Company is exposed to credit risk in the event of non-performance by the counterparties to the Company's derivative contracts. However, the Company diversifies the counterparties to its derivative contracts to reduce credit risk, and because the counterparties to these contracts are high&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;credit&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;quality international banks, the Company does not anticipate non-performance. These contracts are generally of short duration and settle on a net basis. The difference between the contract amounts and the related market value represents the Company's maximum credit exposure. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;"&gt;Financing receivables&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;Included in the Company's &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;O&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;ther &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;invested assets are certain notes receivable which meet the definition of financing receivables and are accounted for using the cost method of accounting. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;The&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;se&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; notes receivable are collateralized by commercial or residential property. The Company utilizes a third party consultant &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;to&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;determine the &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;initial investment criteria and &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;to &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;monitor the &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;subsequent performance of the notes receivable. The process undertaken prior to the investment in these &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;notes &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;receivables include&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;s an&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; examination of the potential debtors&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;the underlying collateral&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; The Company reviews its receivable positions &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;on &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;at least&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;a &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;quarterly basis &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;using actual redemption experience.  &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;Performance of these &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;notes receivable &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;to date ha&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;s been within expectations&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. As of December 31, 2010, none of the Company's notes receivable are past due or in default&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; and&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;,&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; accordingly, &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;the Company believes that an allowance for&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; credit&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; losses &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;related to&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; these &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;notes &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;receivable is not &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;required&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; at December 31, 2010&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:5pt; margin-bottom:5pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company monitors the performance of the &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;notes &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;receivable based on the type of underlying collateral and by assigning a &amp;#8220;performing&amp;#8221; or a &amp;#8220;non-performing&amp;#8221; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;indicator of credit quality &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;to each individual receivable. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;As of December 31, 2010, the Company's notes receivable of $55.6 million&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;were&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;all performing &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;and were collateralized by&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; residential property and commercial property of $28.9 million and $26.7 million, respectively.&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&amp;#160;&lt;/p&gt;&lt;p style='margin-top: 0pt; margin-bottom: 0pt;'&gt;&lt;/p&gt;&lt;p style='margin-top:12pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;"&gt;Underwriting operations&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company is also exposed to credit risk in its underwriting operations, most notably in the credit/surety line and for alternative risk products. Loss experience in these lines of business is cyclical and is affected by the state of the general economic environment. The Company provides its clients in these lines of business with reinsurance protection against credit deterioration, defaults or other types of financial non-performance of or by the underlying credits that are the subject of the reinsurance provided and, accordingly, the Company is exposed to the credit risk of those credits. The Company mitigates the risks associated with these credit-sensitive lines of business through the use of risk management techniques such as risk diversification, careful monitoring of risk aggregations and accumulations and, at times, through the use of retrocessional reinsurance protection and the purchase of credit default&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;,&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; total return and interest rate swaps. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company has exposure to credit risk as it relates to its business written through brokers, if any of the Company's brokers is unable to fulfill their contractual obligations with respect to payments to the Company. In addition, in some jurisdictions, if the broker fails to make payments to the insured under the Company's policy, the Company might remain liable to the insured for the deficiency. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;The Company's exposure to such credit risk is somewhat mitigated in certain jurisdictions by contractual terms.&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company has exposure to credit risk related to reinsurance balances receivable and reinsurance recoverable on paid and unpaid losses. The credit risk exposure related to these balances is mitigated by several factors, including but not limited to, credit checks performed as part of the underwriting process, monitoring of aged receivable balances and the contractual right to offset premiums receivable or funds held balances against unpaid losses and loss expenses. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;The Company regularly reviews its reinsurance recoverable balances to estimate an allowance for uncollectible amounts based on quantitative and qualitative factors. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;As of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;December 31, 2010 and 2009&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;, the Company has recorded a provision for uncollectible premiums receivable of $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;12.6 &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;million and $10.3 million, respectively. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;See also &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;Note 10&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; for discussion&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;o&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;f&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; credit risk related to reinsurance recoverable on paid and unpaid losses.&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company is also subject to the credit risk of its cedants in the event of insolvency or the cedant's failure to honor the value of funds held balances for any other reason. The funds held&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &amp;#8211; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;directly managed account is with one cedant and is supported by an underlying portfolio of investments, which are managed by the Company (see Note &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;5&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;). &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;However, the Company's credit risk in some jurisdictions is mitigated by a mandatory right of offset of amounts payable by the Company to a cedant again&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;st amounts due to the Company. &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;In certain other jurisdictions the Company is able to mitigate this risk, depending on the nature of the funds held arrangements, to the extent that the Company has the contractual ability to offset any shortfall in the payment of the funds held balances with amounts owed by the Company to cedants for losses payable and other amounts contractually due&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top: 0pt; margin-bottom: 0pt;'&gt;&lt;/p&gt;&lt;p style='margin-top:13.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;"&gt;(b) Lease Arrangements &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company leases office space under operating leases expiring in various years &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;through 20&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;19&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. The leases are renewable at the option of the lessee under certain circumstances. The following is a schedule of future minimum rental payments, exclusive of escalation clauses, on non-cancelable leases as of December 31, 2010 &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;(in thousands of U.S. dollars):&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top: 0pt; margin-bottom: 0pt;'&gt;&lt;/p&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;margin-top:20px;"&gt;&lt;tr style="height: 15px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 7.5pt;COLOR: #000000;"&gt;Period&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;"&gt;Amount&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 7px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:395px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:105px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 15px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2011&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;"&gt;$&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;34,756&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 15px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2012&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;31,364&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 15px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2013&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;16,555&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 15px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2014&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;12,234&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 16px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2015&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;8,030&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 16px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;2016 through 2019&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;17,300&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 7px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 105px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:105px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height: 16px"&gt;&lt;td   style="width: 55px; text-align:left;border-color:#000000;min-width:55px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 395px; text-align:left;border-color:#000000;min-width:395px;"&gt;&lt;font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;"&gt;Total future minimum rental payments &lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 9px; text-align:left;border-color:#000000;min-width:9px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;"&gt;$&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 105px; text-align:right;border-color:#000000;min-width:105px;"&gt;&lt;font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"&gt;120,239&lt;/font&gt;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:center;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"&gt;&amp;#160;&lt;/td&gt;&lt;td   style="width: 7px; text-align:left;border-color:#000000;min-width:7px;"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;p style='margin-top: 0pt; margin-bottom: 0pt;'&gt;&lt;/p&gt;&lt;p style='margin-top:12pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;Rent &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;expense&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; for the years ended December 31, 2010, 2009 and 2008 was $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;36.1&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million, $30.9 million, and $28.8 million, respectively.&lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top: 0pt; margin-bottom: 0pt;'&gt;&lt;/p&gt;&lt;p style='margin-top:12pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;"&gt;(c) Employment Agreements &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company has entered into employment agreements with its executive officers. These agreements provide for annual compensation in the form of salary, benefits, annual incentive payments, share-based compensation, the reimbursement of certain expenses, retention incentive payments, as well as certain severance provisions. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.3px;"&gt;In April 2010, as part of the Company's integration of Paris Re, the Company announced a voluntary termination plan (voluntary plan) available to certain eligible employees in France. Employees participating in the voluntary plan have no compulsory notice periods, however, their expected leaving dates are largely through mid 2012. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:22.3px;"&gt;On July&amp;#160;12, 2010, the Company announced certain changes in its executive management group. Related to these changes, on July&amp;#160;28, 2010, the Company entered into a separation agreement &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;(L&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;etter &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;A&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;greement) with a member of executive management. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:9pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:27px;"&gt;During the year ended December&amp;#160;31, 2010, the Company recorded a pre-tax charge of $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;50.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;0 &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;million related to the aggregated costs&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; of the voluntary plan and the Letter A&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;greement within other operating expenses. The continuing salary and other employment benefits costs related to employees participating in the voluntary plan will be expensed as the employee provides service and remains with the Company. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:13.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;"&gt;(d) Other Agreements &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:6pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company has entered into service agreements and lease contracts that provide for business and information technology support and computer equipment. Future payments under these contracts amount to $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;2&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;7.7&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;through 2016.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:6pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company has entered into strategic investments with unfunded capital commitments totaling $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;142.1&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million through &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;. The Company expects to fund capital commitments of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;$54.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;2 &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;million, &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;$&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;47.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;0 &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;million, $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;23.0&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million, $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;9.3&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million, $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;4.3&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million and $&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;4.3&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; million during 2011, 2012, 2013, 2014&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;, 2015&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;, respectively. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:13.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0px;"&gt;(e) Legal Proceedings &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:4.5pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;"&gt;Litigation &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:6pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;The Company's reinsurance subsidiaries, and the insurance and reinsurance industry in general, are subject to litigation and arbitration in the normal course of their business operations. In addition to claims litigation, the Company and its subsidiaries may be subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on reinsurance treaties. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims or regulatory activity. While the outcome of business litigation cannot be predicted with certainty, the Company will dispute all allegations against the Company and/or its subsidiaries that Management believes are without merit. &lt;/font&gt;&lt;/p&gt;&lt;p style='margin-top:6pt; margin-bottom:0pt'&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;margin-left:24.5px;"&gt;As of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;December 31, 2010&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt;, the Company was not a party to any litigation or arbitration that it believes could have a material adverse effect on the financial condition, results of operations or liquidity of the Company.&lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;"&gt; &lt;/font&gt;&lt;/p&gt;</NonNumbericText><NonNumericTextHeader>18. Commitments and Contingencies (a) Concentration of Credit Risk Fixed maturitiesThe Company's investment portfolio is managed following prudent standards of</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Includes disclosure of commitments and contingencies. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name FASB Interpretation (FIN)
 -Number 14
 -Paragraph 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 5
 -Paragraph 9, 10, 11, 12

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