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v3.20.1

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 [Member]
--- | --- | --- | --- | --- | --- | ---
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 impact of ASU 2018-02adoption |  |  |  |  | (101) | 101
Net income | 37,469 |  |  |  | 37,469 |
Other comprehensive income (loss) | 81 |  |  |  |  | 81
Share repurchases | (11,558) |  | $ (11,558) |  |  |
Share repurchases, Shares |  |  | 580 |  |  |
Restricted Stock |  | $ 1 |  | (1) |  |
Restricted Stock, Shares |  | 173 |  |  |  |
Stock options exercised | 1,400 | $ 2 |  | 1,398 |  |
Stock options exercised, Shares |  | 189 |  |  |  |
Stock-based compensation | 1,482 |  |  | 1,482 |  |
Business acquisitions | 950 | $ 1 |  | 949 |  |
Business acquisitions, Shares |  | 47 |  |  |  |
Balance, Amount at Mar. 31, 2019 | 623,487 | $ 1,318 | $ (520,088) | 696,226 | 446,331 | (300)
Balance, Shares at Mar. 31, 2019 |  | 131,813 | 76,912 |  |  |
Balance, Amount at Dec. 31, 2019 | 659,238 | $ 1,331 | $ (535,693) | 714,704 | 479,576 | (680)
Balance, Shares at Dec. 31, 2019 |  | 133,056 | 77,637 |  |  |
Net income | 36,848 |  |  |  | 36,848 |
Other comprehensive income (loss) | (1,252) |  |  |  |  | (1,252)
Share repurchases | (29,487) |  | $ (29,487) |  |  |
Share repurchases, Shares |  |  | 1,174 |  |  |
Stock options exercised | $ 1,013 | $ 1 |  | 1,012 |  |
Stock options exercised, Shares | 116 | 116 |  |  |  |
Stock-based compensation | $ 2,023 |  |  | 2,023 |  |
Business acquisitions | 1,877 |  |  | 1,877 |  |
Business acquisitions, Shares |  | 69 |  |  |  |
Balance, Amount at Mar. 31, 2020 | $ 670,260 | $ 1,332 | $ (565,180) | $ 719,616 | $ 516,424 | $ (1,932)
Balance, Shares at Mar. 31, 2020 |  | 133,241 | 78,811 |  |  |

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