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Consolidated Statements of Shareholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common stock
Additional Paid-In Capital
Accumulated Deficit
Balances (in shares) at Dec. 31, 2020   28,159    
Balances at Dec. 31, 2020 $ 161,262 $ 282 $ 470,719 $ (309,739)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Issuance of stock on options exercised and restricted stock units vested (in shares)   303    
Issuance of stock on options exercised and restricted stock units vested 101 $ 3 98  
Share-based compensation 2,669   2,669  
Tax benefit from share-based compensation (3,439)   (3,439)  
Net income 10,620     10,620
Balances (in shares) at Mar. 31, 2021   28,462    
Balances at Mar. 31, 2021 171,213 $ 285 470,047 (299,119)
Balances (in shares) at Dec. 31, 2021   28,830    
Balances at Dec. 31, 2021 319,541 $ 288 477,829 (158,576)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Issuance of stock on options exercised and restricted stock units vested (in shares)   419    
Issuance of stock on options exercised and restricted stock units vested 4 $ 4    
Repurchases of common stock (in shares)   (269)    
Repurchases of common stock (15,196) $ (2)   (15,194)
Share-based compensation 3,141   3,141  
Tax benefit from share-based compensation (10,298)   (10,298)  
Net income 36,066     36,066
Balances (in shares) at Mar. 31, 2022   28,980    
Balances at Mar. 31, 2022 $ 333,258 $ 290 $ 470,672 $ (137,704)