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Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands | Capital Stock [Member] | Paid-In Capital [Member] | Retained Earnings [Member] | Treasury Stock-At Cost [Member] | Deferred Compensation Payable In Company Stock [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 34,732 | $ 695,797 | $ 1,038,955 | $ (1,231,332) | $ 2,202 | $ 540,354
Net income |  |  | 99,967 |  |  | 99,967
Dividends paid |  |  | (9,016) |  |  | (9,016)
Stock awards and exercise of stock options | 409 | 49,070 |  | (38,833) |  | 10,646
Purchases of treasury stock |  |  |  | (84,304) |  | (84,304)
Other |  | (639) | (617) | (69) | 69 | (1,256)
Balance at Jun. 30, 2018 | 35,141 | 744,228 | 1,129,289 | (1,354,538) | 2,271 | 556,391
Balance at Mar. 31, 2018 | 34,885 | 712,991 | 1,078,690 | (1,321,843) | 2,236 | 506,959
Net income |  |  | 54,971 |  |  | 54,971
Dividends paid |  |  | (4,483) |  |  | (4,483)
Stock awards and exercise of stock options | 256 | 31,660 |  | (29,481) |  | 2,435
Purchases of treasury stock |  |  |  | (3,179) |  | (3,179)
Other |  | (423) | 111 | (35) | 35 | (312)
Balance at Jun. 30, 2018 | 35,141 | 744,228 | 1,129,289 | (1,354,538) | 2,271 | 556,391
Balance at Dec. 31, 2018 | 35,311 | 774,358 | 1,225,617 | (1,446,296) | 2,344 | 591,334
Net income |  |  | 95,396 |  |  | 95,396
Dividends paid |  |  | (9,567) |  |  | (9,567)
Stock awards and exercise of stock options | 280 | 42,489 |  | (29,845) |  | 12,924
Purchases of treasury stock |  |  |  | (71,926) |  | (71,926)
Other |  | 408 |  | (71) | 71 | 408
Balance at Jun. 30, 2019 | 35,591 | 817,255 | 1,311,446 | (1,548,138) | 2,415 | 618,569
Balance at Mar. 31, 2019 | 35,521 | 803,701 | 1,265,485 | (1,519,077) | 2,380 | 588,010
Net income |  |  | 50,729 |  |  | 50,729
Dividends paid |  |  | (4,768) |  |  | (4,768)
Stock awards and exercise of stock options | 70 | 13,337 |  | (6,350) |  | 7,057
Purchases of treasury stock |  |  |  | (22,676) |  | (22,676)
Other |  | 217 |  | (35) | 35 | 217
Balance at Jun. 30, 2019 | $ 35,591 | $ 817,255 | $ 1,311,446 | $ (1,548,138) | $ 2,415 | $ 618,569

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