101 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 103 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) EARNINGS link:calculationLink link:presentationLink link:definitionLink 104 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:calculationLink link:presentationLink link:definitionLink 105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 106 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:calculationLink link:presentationLink link:definitionLink 107 - Disclosure - Interim financial statements link:calculationLink link:presentationLink link:definitionLink 108 - Disclosure - Investments in debt and equity securities link:calculationLink link:presentationLink link:definitionLink 109 - Disclosure - Fair value measurements link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - Investment income link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Share-based incentives link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - Earnings per share link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - Contingent liabilities and commitments link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - Segment information link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - Regulatory and legal developments link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - Subsequent events link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - Interim financial statements (Policies) link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - Investments in debt and equity securities (Tables) link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - Fair value measurements (Tables) link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Investment income (Tables) link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Segment information (Tables) link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Interim Financial Statements - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Amortized Costs and Fair Values (Detail) link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Gross Unrealized Gains and Losses (Detail) link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Debt Securities According Contractual Terms (Detail) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Gross Unrealized Losses on Investments and Fair Values of Related Securities (Detail) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Investments in Debt and Equity Securities - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Financial Instrument Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Gross Realized Investment and Other Gains and Losses (Detail) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Investment Income - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - Proceeds from the Sales of Investments Available-for-Sale (Detail) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - Share-Based Incentives - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Contingent Liabilities and Commitments - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Segment Information - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Selected Statement of Operations and Comprehensive (Loss) Earnings Information Related to Segments (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Revenues Generated in United States and All International Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Regulatory and Legal Developments - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Subsequent Events - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink