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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Preferred Stock
Common Stock
Common Stock
Class A Common Stock
Common Stock
Class B Common Stock
Additional Paid-in Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2015 $ 652,405 $ 190,750   $ 395 $ 1 $ 429,790 $ 63,534 $ (29,070) $ (2,995)
Comprehensive income:                  
Net income 46,215           46,215    
Other comprehensive income, net 5,678               5,678
Issuance of stock   120,255 $ 175,094 117 1 174,976      
Repayment of preferred stock (42,000) (41,934)         (66)    
Cash settlement and exercise of stock options (359)         (359)      
Stock option compensation expense 297         297      
Restricted stock compensation expense 5,394         5,394      
Stock appreciation right expense 15         15      
Restricted stock surrendered due to employee tax liability (3,388)     (2)   (3,386)      
Tax effect from stock compensation plan 1,468         1,468      
Shares purchased under the Dividend Reinvestment Plan (5)         108 (113)    
Stock appreciation right dividend equivalents (372)           (372)    
Dividends declared (11,124)           (11,124)    
Preferred stock dividends (9,689)           (9,689)    
Ending Balance at Jun. 30, 2016 939,884 269,071   510 2 608,303 88,385 (29,070) 2,683
Beginning Balance at Dec. 31, 2016 980,239 269,071   537 2 614,226 134,515 (29,070) (9,042)
Comprehensive income:                  
Net income 29,458           29,458    
Other comprehensive income, net 17,923               17,923
Issuance of stock     $ 0 5 2 (7)      
Cash settlement and exercise of stock options 0     1   (285)   284  
Stock option compensation expense 667         667      
Restricted stock compensation expense 6,982         6,982      
Stock appreciation right expense 42         42      
Restricted stock surrendered due to employee tax liability (5,377)     (3)   (5,374)      
Stock appreciation right dividend equivalents (405)           (405)    
Dividends declared (13,011)           (13,011)    
Preferred stock dividends (10,226)           (10,226)    
Ending Balance at Jun. 30, 2017 $ 1,006,292 $ 269,071   $ 540 $ 4 $ 616,251 $ 140,331 $ (28,786) $ 8,881