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Fair Value Measurements (Tables)
12 Months Ended
Apr. 30, 2020
Fair Value Measurements  
Schedule of liabilities measured at fair value on a recurring basis

    

April 30, 

2020

2019

(in thousands)

Interest rate swaps (Level 2)

$

32,218

$

5,613

Stock appreciation rights (Level 3)

24,205

23,458

Deferred compensation (Level 3)

1,660

 

1,695

Noncontrolling interest holders (Level 3)

8,300

12,498

Contingent consideration (Level 3)

 

12,354