XML 72 R61.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Apr. 30, 2018
Fair Value Measurements        
Change in fair value of financial instruments $ (276) $ (6,395) $ (710)  
Fair Value, Measurements, Recurring | Level 3        
Fair Value Measurements        
Stock appreciation rights   22,154   $ 21,944
Deferred compensation   1,625   2,222
Noncontrolling interest holders   12,158   16,170
Contingent consideration   12,406    
Interest rate cap | Fair Value, Measurements, Recurring | Level 2        
Fair Value Measurements        
Derivative assets       543
Forward currency forward        
Fair Value Measurements        
Change in fair value of financial instruments   (5,700)    
Forward currency forward | Fair Value, Measurements, Recurring | Level 2        
Fair Value Measurements        
Derivative liabilities       $ 5,108
Titan        
Fair Value Measurements        
Assumed contingent consideration arrangements   12,400    
Selling, general and administrative expenses | Titan        
Fair Value Measurements        
Contingent consideration expense   $ 500