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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid in Capital
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Beginning balance (in shares) at Feb. 28, 2019   24,946      
Beginning balance at Feb. 28, 2019 $ 996,637 $ 2,495 $ 246,585 $ 1,191 $ 746,366
Increase (Decrease) in Stockholders' Equity          
Net income 152,333       152,333
Other comprehensive loss, net of tax (8,196)     (8,196)  
Exercise of stock options (in shares)   93      
Exercise of stock options 5,353 $ 9 5,344    
Issuance and settlement of restricted stock (in shares)   202      
Issuance and settlement of restricted stock 0 $ 20 (20)    
Issuance of common stock related to stock purchase plan (in shares)   30      
Issuance of common stock related to stock purchase plan 2,836 $ 3 2,833    
Common stock repurchased and retired (in shares)   (77)      
Common stock repurchased and retired (10,169) $ (8) (9,628)   (533)
Share-based compensation 22,929   22,929    
Ending balance (in shares) at Feb. 29, 2020   25,194      
Ending balance at Feb. 29, 2020 1,161,723 $ 2,519 268,043 (7,005) 898,166
Increase (Decrease) in Stockholders' Equity          
Net income 253,946       253,946
Other comprehensive loss, net of tax (4,651)     (4,651)  
Exercise of stock options (in shares)   21      
Exercise of stock options 1,594 $ 2 1,592    
Issuance and settlement of restricted stock (in shares)   194      
Issuance and settlement of restricted stock 0 $ 20 (20)    
Issuance of common stock related to stock purchase plan (in shares)   27      
Issuance of common stock related to stock purchase plan 3,611 $ 3 3,608    
Common stock repurchased and retired (in shares)   (1,030)      
Common stock repurchased and retired (203,294) $ (103) (16,245)   (186,946)
Share-based compensation 26,418   26,418    
Ending balance (in shares) at Feb. 28, 2021   24,406      
Ending balance at Feb. 28, 2021 1,239,347 $ 2,441 283,396 (11,656) 965,166
Increase (Decrease) in Stockholders' Equity          
Net income 223,764       223,764
Other comprehensive loss, net of tax 11,858     11,858  
Exercise of stock options (in shares)   23      
Exercise of stock options 1,695 $ 2 1,693    
Issuance and settlement of restricted stock (in shares)   202      
Issuance and settlement of restricted stock 0 $ 20 (20)    
Issuance of common stock related to stock purchase plan (in shares)   24      
Issuance of common stock related to stock purchase plan 4,261 $ 2 4,259    
Common stock repurchased and retired (in shares)   (855)      
Common stock repurchased and retired (188,204) $ (85) (20,206)   (167,913)
Share-based compensation 34,618   34,618    
Ending balance (in shares) at Feb. 28, 2022   23,800      
Ending balance at Feb. 28, 2022 $ 1,327,339 $ 2,380 $ 303,740 $ 202 $ 1,021,017