Annual report pursuant to Section 13 and 15(d)

Segments - Long Lived Assets, Excluding Financial Instruments and Tax Assets, Classified by Controlling Countries over Ten Percent (Detail)

v3.22.2
Segments - Long Lived Assets, Excluding Financial Instruments and Tax Assets, Classified by Controlling Countries over Ten Percent (Detail) - USD ($)
$ in Thousands
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2020
Segment Reporting Information [Line Items]      
Long-lived assets $ 305,906 $ 305,899 $ 337,805
UNITED STATES      
Segment Reporting Information [Line Items]      
Long-lived assets [1] 185,228 182,218 199,436
United Kingdom      
Segment Reporting Information [Line Items]      
Long-lived assets 26,711 34,081 35,739
Other Countries      
Segment Reporting Information [Line Items]      
Long-lived assets $ 93,967 $ 89,600 $ 102,630
[1] Includes Corporate long-lived assets