XML 20 R6.htm IDEA: XBRL DOCUMENT v3.10.0.1
Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Non - Controlling Interest
Beginning Balance at May. 31, 2015 $ 350,963 $ 7,921 $ 129,926 $ (2,442) $ 215,569 $ (11)
Beginning Balance (in shares) at May. 31, 2015   49,504,359        
Exercise of options, share-based compensation and income tax benefit (in shares)   561,524        
Exercise of options, share-based compensation and income tax benefit $ 17,377 $ 89 17,288      
Issuance of shares under employee stock purchase plan (in shares) 24,369 24,369        
Issuance of shares under employee stock purchase plan $ 786 $ 4 782      
Issuance of shares under employee stock purchase plan (in shares) 24,369 24,369        
Net income (loss) $ 36,538       36,564 (26)
Other comprehensive income (loss) (1,504)     (1,504)    
Ending Balance at May. 31, 2016 404,160 $ 8,014 147,996 (3,946) 252,133 (37)
Ending Balance (in shares) at May. 31, 2016   50,090,252        
Exercise of options, share-based compensation and income tax benefit (in shares)   817,284        
Exercise of options, share-based compensation and income tax benefit $ 26,720 $ 131 26,589      
Issuance of shares under employee stock purchase plan (in shares) 24,953 24,953        
Issuance of shares under employee stock purchase plan $ 925 $ 4 921      
Issuance of shares under employee stock purchase plan (in shares) 24,953 24,953        
Purchase of minority interest $ (764)   (764)      
Net income (loss) 43,973       43,793 180
Other comprehensive income (loss) (3,257)     (3,257)    
Ending Balance at May. 31, 2017 $ 471,757 $ 8,149 174,742 (7,203) 295,926 143
Ending Balance (in shares) at May. 31, 2017 50,932,489 50,932,489        
Exercise of options, share-based compensation and income tax benefit (in shares)   781,116        
Exercise of options, share-based compensation and income tax benefit $ 27,117 $ 125 26,992      
Issuance of shares under employee stock purchase plan (in shares) 22,127 22,127        
Issuance of shares under employee stock purchase plan $ 1,052 $ 4 1,048      
Issuance of shares under employee stock purchase plan (in shares) 22,127 22,127        
Purchase of minority interest $ (423)   (210)     (213)
Net income (loss) 63,215       63,145 $ 70
Other comprehensive income (loss) (2,543)     (2,543)    
Ending Balance at May. 31, 2018 $ 560,175 $ 8,278 $ 202,572 $ (9,746) $ 359,071  
Ending Balance (in shares) at May. 31, 2018 51,735,732 51,735,732