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Intangibles (Tables)
3 Months Ended
Jul. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Components of Intangible Assets
The customer relationship intangibles were:
 July 31,April 30,
(in thousands)20212021
Customer relationship intangibles$274,000 $274,000 
Less accumulated amortization(163,639)(152,222)
Total$110,361 $121,778