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Fair Value Measurements (Tables)
3 Months Ended
Jul. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value of Assets on Recurring Basis The following table summarizes the fair value of assets and liabilities that are recorded in the Company's consolidated financial statements as of July 31, 2022 and April 30, 2022 at fair value on a recurring basis (in thousands):
 Fair Value Measurements
 As of July 31, 2022
 Level 1Level 2Level 3
ASSETS:   
Mutual funds$254 $— $— 
Interest rate swap contracts— 11,977 — 
Total assets at fair value$254 $11,977 $— 
LIABILITIES:
Foreign exchange forward contracts$— $237 $— 
 As of April 30, 2022
 Level 1Level 2Level 3
ASSETS:   
Mutual funds$404 $— $— 
Interest rate swap contracts— 13,687 — 
Total assets at fair value$404 $13,687 $—