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v3.19.3

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive (Loss) Gain [Member]
--- | --- | --- | --- | --- | --- | ---
Balance, Amount at Dec. 31, 2017 | $ 530,879 | $ 1,301 | $ (491,046) | $ 675,504 | $ 345,302 | $ (182)
Balance, Shares at Dec. 31, 2017 |  | 130,075 | 75,484 |  |  |
Cumulative-effect of accounting changes adjustment | 1,622 |  |  |  | 1,622 |
Net income | 62,543 |  |  |  | 62,543 |
Other comprehensive income | 343 |  |  |  |  | 343
Share repurchases | (8,121) |  | $ (8,121) |  |  |
Share repurchases, Shares |  |  | 379 |  |  |
Restricted stock |  | $ 3 |  | (3) |  |
Restricted stock, Shares |  | 272 |  |  |  |
Stock options exercised | 6,076 | $ 8 |  | 6,068 |  |
Stock options exercised, Shares |  | 840 |  |  |  |
Share-based compensation | 5,358 |  |  | 5,358 |  |
Business acquisitions | 3,215 | $ 2 |  | 3,213 |  |
Business acquisitions, Shares |  | 169 |  |  |  |
Balance, Amount at Sep. 30, 2018 | 601,915 | $ 1,314 | $ (499,167) | 690,140 | 409,467 | 161
Balance, Shares at Sep. 30, 2018 |  | 131,356 | 75,863 |  |  |
Balance, Amount at Jun. 30, 2018 | 588,826 | $ 1,311 | $ (495,455) | 686,983 | 395,881 | 106
Balance, Shares at Jun. 30, 2018 |  | 131,132 | 75,703 |  |  |
Net income | 13,586 |  |  |  | 13,586 |
Other comprehensive income | 55 |  |  |  |  | 55
Share repurchases | (3,712) |  | $ (3,712) |  |  |
Share repurchases, Shares |  |  | 160 |  |  |
Restricted stock |  | $ (1) |  | 1 |  |
Stock options exercised | 1,651 | $ 3 |  | 1,648 |  |
Stock options exercised, Shares |  | 224 |  |  |  |
Share-based compensation | 1,508 |  |  | 1,508 |  |
Business acquisitions | 1 | $ 1 |  |  |  |
Balance, Amount at Sep. 30, 2018 | 601,915 | $ 1,314 | $ (499,167) | 690,140 | 409,467 | 161
Balance, Shares at Sep. 30, 2018 |  | 131,356 | 75,863 |  |  |
Balance, Amount at Dec. 31, 2018 | 593,663 | $ 1,314 | $ (508,530) | 692,398 | 408,963 | (482)
Balance, Shares at Dec. 31, 2018 |  | 131,404 | 76,332 |  |  |
Cumulative-effect of accounting changes adjustment |  |  |  |  | (101) | 101
Net income | 71,867 |  |  |  | 71,867 |
Other comprehensive income | (470) |  |  |  |  | (470)
Share repurchases | (22,826) |  | $ (22,826) |  |  |
Share repurchases, Shares |  |  | 1,144 |  |  |
Restricted stock |  | $ 2 |  | (2) |  |
Restricted stock, Shares |  | 228 |  |  |  |
Stock options exercised | $ 4,855 | $ 6 |  | 4,849 |  |
Stock options exercised, Shares | 558 | 558 |  |  |  |
Share-based compensation | $ 5,258 |  |  | 5,258 |  |
Business acquisitions | 3,949 | $ 2 |  | 3,947 |  |
Business acquisitions, Shares |  | 195 |  |  |  |
Balance, Amount at Sep. 30, 2019 | 656,296 | $ 1,324 | $ (531,356) | 706,450 | 480,729 | (851)
Balance, Shares at Sep. 30, 2019 |  | 132,385 | 77,476 |  |  |
Balance, Amount at Jun. 30, 2019 | 634,060 | $ 1,321 | $ (530,262) | 700,800 | 462,923 | (722)
Balance, Shares at Jun. 30, 2019 |  | 132,108 | 77,428 |  |  |
Net income | 17,806 |  |  |  | 17,806 |
Other comprehensive income | (129) |  |  |  |  | (129)
Share repurchases | (1,094) |  | $ (1,094) |  |  |
Share repurchases, Shares |  |  | 48 |  |  |
Stock options exercised | 1,812 | $ 2 |  | 1,810 |  |
Stock options exercised, Shares |  | 180 |  |  |  |
Share-based compensation | 1,859 |  |  | 1,859 |  |
Business acquisitions | 1,982 | $ 1 |  | 1,981 |  |
Business acquisitions, Shares |  | 97 |  |  |  |
Balance, Amount at Sep. 30, 2019 | $ 656,296 | $ 1,324 | $ (531,356) | $ 706,450 | $ 480,729 | $ (851)
Balance, Shares at Sep. 30, 2019 |  | 132,385 | 77,476 |  |  |

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