| Assets |
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| Investments: |
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| Debt securities available for sale, at fair value |
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| Fixed maturities |
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| Short-term investments |
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| Total debt securities available for sale, at fair value |
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| Short-term investments available for sale, at fair value (amortized cost: $1,734,738 and $1,924,292; net of allowance for credit losses: $0 and $0 ) |
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| Collateral received under securities lending, at fair value (amortized cost: $0 and $301,089) |
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| Equity securities, at fair value |
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| Other investments, at fair value |
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| Fixed maturities |
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| Total other investments, at fair value |
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Investments accounted for using the equity method
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| Total investments |
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Cash
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| Accrued investment income |
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| Securities pledged under securities lending, at fair value (amortized cost: $0 and $294,493) |
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| Investment in operating affiliates |
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| Premiums receivable (net of allowance for credit losses: $41 and $43) |
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| Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses (net of allowance for credit losses: $18 and $17) |
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| Contractholder receivables (net of allowance for credit losses: $7 and $7) |
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| Ceded unearned premiums |
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| Deferred acquisition costs |
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| Receivable for securities sold |
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| Goodwill and intangible assets |
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| Other assets |
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Total assets
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| Liabilities |
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| Reserve for losses and loss adjustment expenses |
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| Unearned premiums |
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| Reinsurance balances payable |
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| Contractholder payables |
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| Collateral held for insured obligations |
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| Senior notes |
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| Revolving credit agreement borrowings |
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| Securities lending payable |
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| Payable for securities purchased |
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| Other liabilities |
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Total liabilities
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| Redeemable noncontrolling interests |
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| Shareholders' Equity |
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| Non-cumulative preferred shares |
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Common shares ($0.0011 par, shares issued: 602.7 and 599.8)
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Additional paid-in capital
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Retained earnings
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| Accumulated other comprehensive income (loss), net of deferred income tax |
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Common shares held in treasury, at cost (shares: 261.8 and 240.8)
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Total shareholders' equity available to Arch
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| Non-redeemable noncontrolling interests |
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| Total shareholders' equity |
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Total liabilities and shareholders' equity
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