Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical)

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Stock Options And Warrants Exercised 682,500 1,051,000 1,767,966
Stock option and Warrants Exercised Tax Benefits     $ 971
Stock Issued During Period, Shares, New Issues     3,750,000
Payments of Stock Issuance Costs     $ 4,777
Common Dividends Paid Per Share $ 0.12 $ 0.09 $ 0.08
Common Dividends Declared Per Share $ 0.04 $ 0.03 $ 0.03
Issue shares of REIT preferred   125 250
Stockholders' Equity Note, Stock Split 2-for-1 common stock split   3-for-1 common stock split
Common Stock [Member]      
Stock Issued During Period, Shares, New Issues   1,273,184  
Preferred Stock [Member]      
Stock Redeemed or Called During Period, Shares   40,000