Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical)

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]    
Other comprehensive income (loss), tax $ 1,788 $ 1,502
Dividends on common stock, per share (in usd per share) $ 0.20 $ 0.19
Stock purchased under stock repurchase plan, shares   1,040,612
Issuance of common stock under Equity Compensation Plan , shares 29,008 21,804
Issuance of common stock for services rendered, shares 4,856 4,400
Vesting of restricted stock under Equity Compensation Plans, shares 58,679 30,299