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Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Investments: |  |
Fixed maturities available for sale, at fair value (amortized cost: $18,317,693 and $17,973,823; net of allowance for credit losses: $34,145 and $2,883 ) | $ 19,981,477 | $ 19,732,825
Equity securities, at fair value | 1,002,572 | 1,804,170
Other investments, at fair value | 1,686,666 | 1,973,550
Investments accounted for using the equity method | 3,325,543 | 3,077,611
Total investments | 25,996,258 | 26,588,156
Cash | 812,917 | 858,668
Accrued investment income | 82,607 | 85,453
Investment in operating affiliates | 1,144,255 | 1,135,655
Premiums receivable (net of allowance for credit losses: $39,073 and $39,958) | 3,223,504 | 2,633,280
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses (net of allowance for credit losses: $18,483 and $13,230) | 5,941,000 | 5,880,735
Contractholder receivables (net of allowance for credit losses: $3,731 and $3,437) | 1,810,199 | 1,828,691
Ceded unearned premiums | 1,951,960 | 1,729,455
Deferred acquisition costs | 1,001,866 | 901,841
Receivable for securities sold | 116,633 | 60,179
Goodwill and intangible assets | 926,427 | 944,983
Other assets | 2,670,315 | 2,453,849
Total assets | 45,677,941 | 45,100,945
Liabilities |  |
Reserve for losses and loss adjustment expenses | 18,109,107 | 17,757,156
Unearned premiums | 6,737,779 | 6,011,942
Reinsurance balances payable | 1,510,906 | 1,583,253
Contractholder payables | 1,813,930 | 1,832,127
Collateral held for insured obligations | 244,502 | 242,352
Senior notes | 2,724,642 | 2,724,394
Payable for securities purchased | 176,452 | 64,850
Other liabilities | 1,431,271 | 1,329,742
Total liabilities | 32,748,589 | 31,545,816
Commitments and Contingencies |  |
Redeemable noncontrolling interests | 9,763 | 9,233
Shareholders' Equity |  |
Non-cumulative preferred shares | 830,000 | 830,000
Common shares ($0.0011 par, shares issued: 586,115,502 and 583,289,850) | 651 | 648
Additional paid-in capital | 2,134,241 | 2,085,075
Retained earnings | 14,641,484 | 14,455,868
Accumulated other comprehensive income (loss), net of deferred income tax | (649,445) | (64,600)
Common shares held in treasury, at cost (shares: 210,384,611 and 204,365,956) | (4,037,342) | (3,761,095)
Total shareholders' equity available to Arch | 12,919,589 | 13,545,896
Total liabilities, noncontrolling interests and shareholders' equity | 45,677,941 | 45,100,945
Fixed maturities available for sale, at fair value (amortized cost: $18,317,693 and $17,973,823; net of allowance for credit losses: $34,145 and $2,883 ) |  |
Investments: |  |
Fixed maturities available for sale, at fair value (amortized cost: $18,317,693 and $17,973,823; net of allowance for credit losses: $34,145 and $2,883 ) | 17,648,853 | 17,998,109
Short-term investments available for sale, at fair value (amortized cost: $2,332,513 and $1,734,738; net of allowance for credit losses: $0 and $0) |  |
Investments: |  |
Fixed maturities available for sale, at fair value (amortized cost: $18,317,693 and $17,973,823; net of allowance for credit losses: $34,145 and $2,883 ) | $ 2,332,624 | $ 1,734,716

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- Definition Certain insurance policies written by the Company’s insurance operations feature large deductibles, primarily in its construction and national accounts lines of business. Under such contracts, the Company is obligated to pay the claimant for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in contractholder payables and contractholder receivables, respectively. In the event that the Company is unable to collect from the policyholder, the Company would be liable for such defaulted amounts. Collateral, primarily in the form of letters of credit, cash and trusts, is obtained from the policyholder to mitigate the Company’s credit risk. In the instances where the Company receives collateral in the form of cash, the Company reflects it in “Collateral held for insured obligations.” + References No definition available. + Details
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- Definition Certain insurance policies written by the Company’s insurance operations feature large deductibles, primarily in its construction and national accounts lines of business. Under such contracts, the Company is obligated to pay the claimant for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in contractholder payables and contractholder receivables, respectively. In the event that the Company is unable to collect from the policyholder, the Company would be liable for such defaulted amounts. Collateral, primarily in the form of letters of credit, cash and trusts, is obtained from the policyholder to mitigate the Company’s credit risk. In the instances where the Company receives collateral in the form of cash, the Company reflects it in “Collateral held for insured obligations.” + References No definition available. + Details
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