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Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests (Tables)
 12 Months Ended
Apr. 30, 2023
Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests  
Summary of changes to the liabilities for stock appreciation rights, deferred compensation and redeemable noncontrolling interests
The following table presents a summary of changes to the liabilities for stock appreciation rights, deferred compensation and redeemable noncontrolling interests:
Stock
Appreciation
Rights		Deferred
Compensation		Redeemable
Noncontrolling
Interests
(in thousands)
Balance as of April 30, 2021$26,795 $1,875 $9,373 
Amounts redeemed(320)— — 
Change in fair value4,403 330 1,653 
Balance as of April 30, 202230,878 2,205 11,026 
Amounts redeemed(6,149)— — 
Change in fair value7,703 202 976 
Balance as of April 30, 2023$32,432 $2,407 $12,002 
Classified as current as of April 30, 2022$1,532 $— $— 
Classified as long-term as of April 30, 202229,346 2,205 11,026 
Classified as current as of April 30, 2023$7,446 $545 $2,726 
Classified as long-term as of April 30, 202324,986 1,862 9,276