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Consolidated Balance Sheets - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
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ASSETS |  |
Fixed income securities, held-to-maturity – at carrying value (fair value: $44,100 – 2017; $105,211 – 2016) | $ 42,129,000 | $ 101,556,000
Fixed income securities, available-for-sale – at fair value (amortized cost: $5,076,716 – 2017; $4,753,759 – 2016) | 5,162,522,000 | 4,792,540,000
Equity securities, available-for-sale – at fair value (cost: $143,811 – 2017; $120,889 – 2016) | 182,705,000 | 146,753,000
Short-term investments (at cost which approximates fair value) | 165,555,000 | 221,701,000
Other investments | 132,268,000 | 102,397,000
Total investments (Notes 5 and 7) | 5,685,179,000 | 5,364,947,000
Cash | 534,000 | 458,000
Interest and dividends due or accrued | 40,897,000 | 40,164,000
Premiums receivable, net of allowance for uncollectible accounts of: $10,000 – 2017; $5,980 – 2016 | 747,029,000 | 681,611,000
Reinsurance recoverable, net of allowance for uncollectible accounts of: $4,600 – 2017; $5,500 – 2016 (Note 8) | 594,832,000 | 621,537,000
Prepaid reinsurance premiums (Note 8) | 153,493,000 | 146,282,000
Current federal income tax (Note 13) | 3,243,000 | 2,486,000
Deferred federal income tax (Note 13) | 31,990,000 | 84,840,000
Property and equipment – at cost, net of accumulated depreciation and amortization of: $213,227 – 2017; $198,729 – 2016 | 63,959,000 | 69,576,000
Deferred policy acquisition costs (Note 2) | 235,055,000 | 222,564,000
Goodwill (Note 11) | 7,849,000 | 7,849,000
Other assets | 122,371,000 | 113,534,000
Total assets | 7,686,431,000 | 7,355,848,000
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |
Reserve for loss and loss expense (Note 9) | 3,771,240,000 | 3,691,719,000
Unearned premiums | 1,349,644,000 | 1,262,819,000
Long-term debt (Note 10) | 439,116,000 | 438,667,000
Accrued salaries and benefits | 131,850,000 | 132,880,000
Other liabilities | 281,624,000 | 298,393,000
Total liabilities | 5,973,474,000 | 5,824,478,000
Stockholders’ Equity: |  |
Preferred stock of $0 par value per share: Authorized shares: 5,000,000; no shares issued or outstanding | 0 | 0
Common stock of $2 par value per share Authorized shares: 360,000,000 Issued: 102,284,564 - 2017; 101,620,436 - 2016 | 204,569,000 | 203,241,000
Additional paid-in capital | 367,717,000 | 347,295,000
Retained earnings | 1,698,613,000 | 1,568,881,000
Accumulated other comprehensive income (loss) (Note 6) | 20,170,000 | (15,950,000)
Treasury stock – at cost (shares: 43,789,442 – 2017; 43,653,237 – 2016) | (578,112,000) | (572,097,000)
Total stockholders’ equity | 1,712,957,000 | 1,531,370,000
Commitments and contingencies (Notes 17 and 18) |  |
Total liabilities and stockholders’ equity | $ 7,686,431,000 | $ 7,355,848,000

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