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Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Total
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Legal Surplus [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2016 $ 897,077 $ 176,000 $ 52,626 $ 540,948 $ 76,293 $ 177,808 $ (104,860) $ 1,596
Stock-based compensation expense 811     811        
Stock-based compensation excess tax benefit recognized in income (99)     (99)        
Lapsed restricted stock units (358)     (358)     358  
Transfer from retained earnings/transfer to legal surplus         3,502 (3,502)    
Net income 35,573         35,573    
Cash dividends declared on common stock (7,916)         (7,916)    
Cash dividends declared on preferred stock (10,396)         (10,396)    
Other comprehensive (loss) income, net of tax (754)             (754)
Ending Balance at Sep. 30, 2017 937,630 176,000 52,626 541,302 79,795 191,567 (104,502) 842
Beginning Balance at Dec. 31, 2017 945,107 176,000 52,626 541,600 81,454 200,878 (104,502) (2,949)
Stock-based compensation expense 978     978        
Stock-based compensation excess tax benefit recognized in income (140)     (140)        
Lapsed restricted stock units (796)     (360)     796  
Transfer from retained earnings/transfer to legal surplus         6,109 (6,109)    
Net income 59,666         59,666    
Cash dividends declared on common stock (7,919)         (7,919)    
Cash dividends declared on preferred stock (10,396)         (10,396)    
Other comprehensive (loss) income, net of tax (17,846)             (17,846)
Ending Balance at Sep. 30, 2018 $ 969,886 $ 176,000 $ 52,626 $ 542,078 $ 87,563 $ 236,120 $ (103,706) $ (20,795)