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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Total
--- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2016 | $ 57,506 | $ 605,397 | $ 341,938 | $ (3,809) | $ 1,001,032
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income |  |  | 72,923 |  | 72,923
Other comprehensive income (net of taxes) |  |  |  | 2,925 | 2,925
Issuance of common stock in regard to acquisitions |  |  |  |  | 0
Dividends on common stock |  |  | (35,393) |  | (35,393)
Issuance of common stock under Equity Compensation Plans | 84 | 953 |  |  | 1,037
Issuance of common stock for services rendered | 28 | 696 |  |  | 724
Vesting of restricted stock, including tax effects, under Equity Compensation Plan | 126 | (1,693) |  |  | (1,567)
Stock-based compensation expense |  | 4,648 |  |  | 4,648
Ending balance at Dec. 31, 2017 | 57,744 | 610,001 | 379,468 | (884) | 1,046,329
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income |  |  | 146,248 |  | 146,248
Other comprehensive income (net of taxes) |  |  |  | (9,343) | (9,343)
Issuance of common stock in regard to acquisitions | 29,156 | 765,653 |  |  | 794,809
Dividends on common stock |  |  | (58,001) |  | (58,001)
Issuance of common stock under Equity Compensation Plans | 162 | 2,185 |  |  | 2,347
Issuance of common stock for services rendered | 31 | 883 |  |  | 914
Vesting of restricted stock, including tax effects, under Equity Compensation Plan | 157 | (3,065) |  |  | (2,908)
Cancellation of warrants |  | (1,530) |  |  | (1,530)
Impact of adoption of new guidance |  |  | (370) | (46) | (416)
Stock-based compensation expense |  | 6,132 |  |  | 6,132
Ending balance at Dec. 31, 2018 | 87,250 | 1,380,259 | 467,345 | (10,273) | 1,924,581
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income |  |  | 193,528 |  | 193,528
Other comprehensive income (net of taxes) |  |  |  | 45,848 | 45,848
Issuance of common stock in regard to acquisitions | 21,070 | 478,904 |  |  | 499,974
Dividends on common stock |  |  | (78,345) |  | (78,345)
Stock purchased under stock repurchase plan | (2,889) | (77,391) |  |  | (80,280)
Issuance of common stock under Equity Compensation Plans | 104 | 1,884 |  |  | 1,988
Issuance of common stock for services rendered | 34 | 876 |  |  | 910
Vesting of restricted stock, including tax effects, under Equity Compensation Plan | 258 | (2,559) |  |  | (2,301)
Impact of adoption of new guidance |  |  | (1,133) |  | (1,133)
Stock-based compensation expense |  | 8,332 |  |  | 8,332
Ending balance at Dec. 31, 2019 | $ 105,827 | $ 1,790,305 | $ 581,395 | $ 35,575 | $ 2,513,102

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