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Consolidated Balance Sheets - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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ASSETS |  |
Fixed Income Securities, Held-to-maturity, Allowance for Credit Loss | $ (65) | $ (22)
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss | 28,785 | 16,824
Total HTM fixed income securities carrying value | 28,850 | 16,846
Fixed Income Securities, Available-for-sale, at fair value | 6,709,976 | 6,455,928
Commercial mortgage loans, at carrying value, Gross | 95,795 | 46,306
Commercial mortgage loans, Allowance for Credit Loss | 0 | 0
Commercial mortgage loans, net of allowance for credit losses | 95,795 | 46,306
Equity securities - at fair value | 335,537 | 310,367
Short-term investments | 447,863 | 409,852
Other investments | 409,032 | 266,322
Total investments (Notes 5 and 7) | 8,026,988 | 7,505,599
Cash | 455 | 394
Restricted cash | 44,608 | 14,837
Accrued investment income | 48,247 | 45,004
Premiums Receivable, Gross | 958,787 | 857,014
Premium Receivable, Allowance for Credit Loss | (13,600) | (21,000)
Premiums Receivable, Net of allowance for credit losses | 945,187 | 836,014
Reinsurance Recoverables, Gross | 601,668 | 589,269
Reinsurance Recoverable, Allowance for Credit Loss | (1,600) | (1,777)
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments | 600,068 | 587,492
Prepaid reinsurance premiums (Note 9) | 183,007 | 170,531
Property, Plant and Equipment, Net | 82,053 | 77,696
Deferred policy acquisition costs (Note 2) | 326,915 | 288,578
Goodwill (Note 12) | 7,849 | 7,849
Other assets | 195,240 | 153,919
Current federal income tax (Note 14) | 772 | 0
Total assets | 10,461,389 | 9,687,913
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |
Reserve for loss and loss expense (Note 10) | 4,580,903 | 4,260,355
Unearned premiums | 1,803,207 | 1,618,271
Long-term debt (Note 11) | 506,050 | 550,743
Current federal income tax (Note 14) | 0 | 14,021
Deferred federal income tax (Note 14) | 13,413 | 27,096
Accrued salaries and benefits | 121,057 | 114,868
Other liabilities | 453,874 | 363,670
Total liabilities | 7,478,504 | 6,949,024
Stockholders’ Equity: |  |
Preferred stock of $0 par value per share (Note 17): Authorized shares: 5,000,000; Issued shares: 8,000 with $25,000 liquidation preference per share - 2021; no shares issued or outstanding - 2020 | 200,000 | 200,000
Common stock of $2 par value per share Authorized shares: 360,000,000 Issued: 104,450,916 - 2021; 104,032,912 - 2020 | 208,902 | 208,066
Additional paid-in capital | 464,347 | 438,985
Retained earnings | 2,603,472 | 2,271,537
Accumulated other comprehensive income (Note 6) | 115,099 | 220,186
Treasury Stock, at cost | (608,935) | (599,885)
Total stockholders’ equity | 2,982,885 | 2,738,889
Commitments and contingencies (Notes 19 and 20) |  |
Total liabilities and stockholders’ equity | $ 10,461,389 | $ 9,687,913

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