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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive (Loss)/Income | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2015 | $ 792,237 | $ 90,326 | $ 210,545 | $ 544,228 | $ (16,457) | $ (36,405)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 53,733 |  |  | 53,733 |  |
Other comprehensive income (loss), net of tax | 10,814 |  |  |  | 10,814 |
Cash dividends declared ($0.60 and $0.57) (in dollars per share) | (19,824) |  |  | (19,824) |  |
Treasury stock issued for restricted awards (90,115 shares, net of 23,946 forfeitures, and 110,643 shares, net of 5,717 forfeitures) | (115) |  |  | (2,945) |  | 2,830
Recognition of restricted stock compensation expense | 1,862 |  | 1,862 |  |  |
Ending Balance at Sep. 30, 2016 | 838,707 | 90,326 | 212,407 | 575,192 | (5,643) | (33,575)
Beginning Balance at Dec. 31, 2016 | 841,956 | 90,326 | 213,098 | 585,891 | (13,784) | (33,575)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 63,674 |  |  | 63,674 |  |
Other comprehensive income (loss), net of tax | 1,180 |  |  |  | 1,180 |
Cash dividends declared ($0.60 and $0.57) (in dollars per share) | (20,899) |  |  | (20,899) |  |
Treasury stock issued for restricted awards (90,115 shares, net of 23,946 forfeitures, and 110,643 shares, net of 5,717 forfeitures) | (688) |  |  | (2,383) |  | 1,695
Recognition of restricted stock compensation expense | 2,353 |  | 2,353 |  |  |
Ending Balance at Sep. 30, 2017 | $ 887,576 | $ 90,326 | $ 215,451 | $ 626,283 | $ (12,604) | $ (31,880)

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