XML 57 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2017
Oct. 31, 2016
Apr. 30, 2017
Equity based compensation arrangements          
Long-term liabilities related to plans $ 15,543,000   $ 15,543,000   $ 22,576,000
Stock appreciation income or (expense) 642,000 $ (144,000) 1,232,000 $ (236,000)  
Redeemable noncontrolling interests 164,000 $ 2,531,000 1,030,000 $ 2,823,000  
Selling, general and administrative expenses          
Equity based compensation arrangements          
Gains related to equity based compensation arrangements     $ 2,300,000    
Stock appreciation rights          
Equity based compensation arrangements          
Settlement period     4 years    
Award liability as of beginning of year     $ 20,662,000    
Amounts redeemed     (501,000)    
Change in fair value     1,232,000    
Award liability as of end of year 21,393,000   21,393,000    
Stock appreciation rights | Accrued compensation and employee benefits          
Equity based compensation arrangements          
Current liabilities related to plans 500,000   500,000   900,000
Stock appreciation rights | Other liabilities          
Equity based compensation arrangements          
Long-term liabilities related to plans 20,900,000   $ 20,900,000   19,800,000
Deferred compensation          
Equity based compensation arrangements          
Settlement period     5 years    
Award liability as of beginning of year     $ 3,750,000    
Amounts redeemed     (1,733,000)    
Change in fair value     132,000    
Award liability as of end of year 2,149,000   2,149,000    
Deferred compensation | Accrued compensation and employee benefits          
Equity based compensation arrangements          
Current liabilities related to plans 0   0   300,000
Deferred compensation | Other liabilities          
Equity based compensation arrangements          
Long-term liabilities related to plans 2,100,000   $ 2,100,000   3,500,000
Noncontrolling interest awards          
Equity based compensation arrangements          
Settlement period     5 years    
Award liability as of beginning of year     $ 24,309,000    
Amounts redeemed     (9,664,000)    
Change in fair value     898,000    
Award liability as of end of year 15,543,000   15,543,000    
Noncontrolling interest awards | Accrued compensation and employee benefits          
Equity based compensation arrangements          
Current liabilities related to plans 0   0   1,700,000
Noncontrolling interest awards | Liabilities to noncontrolling interest holders, less current portion          
Equity based compensation arrangements          
Long-term liabilities related to plans $ 15,500,000   $ 15,500,000   $ 22,600,000