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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Available-for-sale, amortized cost $ 1,809,429 $ 1,776,465
Equity securities, cost 259,177 220,373
Premiums and reinsurance balances receivable, allowances for uncollectible amounts 16,829 16,967
Reinsurance balances recoverable on unpaid losses and settlement expenses, allowances for uncollectible amounts 9,792 9,793
Property and equipment, accumulated depreciation $ 58,330 $ 54,275
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 67,717,411 67,434,257
Common stock, shares outstanding (in shares) 44,787,197 44,504,043
Treasury stock, shares (in shares) 22,930,214 22,930,214