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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Stockholders' Equity, Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Equity Balance at Dec. 31, 2016 |  | $ 429,806 | $ 140 | $ 25,942 | $ 402,166 | $ 1,558 | $ 0
Net income |  | 51,564 | 0 | 0 | 51,564 | 0 | 0
Stock issued under Stock Option Plan |  | 3,811 | 0 | 2,261 | 0 | 0 | 1,550
Common dividends declared | [1] | (13,202) | 0 | 0 | (13,202) | 0 | 0
Other comprehensive gain (loss) |  | (317) | 0 | 0 | 0 | (317) | 0
Purchase of the Company's common stock |  | 0 | 0 | 0 | 0 | 0 | 0
Reclassification of Treasury Stock per Maryland Law |  | 0 | 1 | 0 | 1,549 | 0 | (1,550)
Equity Balance at Dec. 31, 2017 |  | 471,662 | 141 | 28,203 | 442,077 | 1,241 | 0
Net income |  | 67,109 | 0 | 0 | 67,109 | 0 | 0
Stock issued under Stock Option Plan |  | 2,961 | 0 | 1,918 | 0 | 0 | 1,043
Common dividends declared | [2] | (16,966) | 0 | 0 | (16,966) | 0 | 0
Other comprehensive gain (loss) |  | 8,114 | 0 | 0 | 0 | 8,114 | 0
Purchase of the Company's common stock |  | (903) | 0 | 0 | 0 | 0 | (903)
Reclassification of Treasury Stock per Maryland Law |  | 0 | 1 | 0 | 139 | 0 | (140)
Equity Balance at Dec. 31, 2018 |  | 531,977 | 142 | 30,121 | 492,087 | 9,627 | 0
Reclassification of stranded tax effects resulting from change in Federal income tax rate |  | 0 | 0 | 0 | (272) | 272 | 0
Net income |  | 73,612 | 0 | 0 | 73,612 | 0 | 0
Stock issued under Stock Option Plan |  | 5,080 | 0 | 3,389 | 0 | 0 | 1,691
Common dividends declared | [3] | (29,373) | 0 | 0 | (29,373) | 0 | 0
Other comprehensive gain (loss) |  | 22,619 | 0 | 0 | 0 | 22,619 | 0
Purchase of the Company's common stock |  | (849) | 0 | 0 | 0 | 0 | (849)
Reclassification of Treasury Stock per Maryland Law |  | 0 | 1 | 0 | 841 | 0 | (842)
Equity Balance at Dec. 31, 2019 |  | $ 603,066 | $ 143 | $ 33,510 | $ 537,167 | $ 32,246 | $ 0
[1] | $.94 per share dividend
[2] | $1.20 per share dividend
[3] | $2.07 per share dividend

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