Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Treasury Stock
Additional Paid-In Capital
Retained Earnings
Stockholders' equity at beginning of period at Dec. 31, 2018 $ 389,932 $ 3 $ (79,571) $ 348,397 $ 121,102
Shares at beginning of period (in shares) at Dec. 31, 2018   31,345,220 (3,947,460)    
Increase in stockholders' equity:          
Share compensation expense 2,806     2,806  
Exercise of stock options 37 $ 0   37  
Exercise of stock options (in shares)   3,000      
Common stock issued for vested restricted stock 0 $ 0   0  
Common stock issued for vested restricted stock (in shares)   215,071      
Common stock issued for vested performance shares 0 $ 0   0  
Common stock issued for vested performance shares (in shares)   13,267      
Common shares withheld and retired to satisfy employee tax withholding obligations upon vesting of restricted stock (1,978) $ 0   (1,978)  
Common shares withheld and retired to satisfy employee tax withholding obligations upon vesting of restricted stock (in shares)   (81,936)      
Repurchase of convertible notes, net of deferred taxes 36     36  
Purchases of treasury stock (10,629)   $ (10,629)    
Purchase of treasury stock (in shares)     (452,350)    
Net loss 3,497       3,497
Stockholders' equity at end of period at Mar. 31, 2019 383,700 $ 3 $ (90,199) 349,298 124,599
Shares at end of period (in shares) at Mar. 31, 2019   31,494,622 (4,399,810)    
Stockholders' equity at beginning of period at Dec. 31, 2019 383,312 $ 3 $ (109,239) 356,600 135,948
Shares at beginning of period (in shares) at Dec. 31, 2019   31,507,247 (5,277,438)    
Increase in stockholders' equity:          
Share compensation expense 4,608     4,608  
Exercise of stock options 381 $ 0   381  
Exercise of stock options (in shares)   32,000      
Common stock issued for vested restricted stock 0 $ 0   0  
Common stock issued for vested restricted stock (in shares)   247,224      
Common shares withheld and retired to satisfy employee tax withholding obligations upon vesting of restricted stock (1,541) $ 0   (1,541)  
Common shares withheld and retired to satisfy employee tax withholding obligations upon vesting of restricted stock (in shares)   (82,802)      
Repurchase of convertible notes, net of deferred taxes (190)     (190)  
Purchases of treasury stock (9,440)   $ (9,440)    
Purchase of treasury stock (in shares)     (489,662)    
Net loss (2,933)       (2,933)
Stockholders' equity at end of period at Mar. 31, 2020 $ 374,197 $ 3 $ (118,679) $ 359,857 $ 133,015
Shares at end of period (in shares) at Mar. 31, 2020   31,703,669 (5,767,100)