Goodwill - Summary of Change in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended
Jan. 31, 2021	Feb. 02, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 0	$ 27,222
Loss on impairment - discontinued operation	0	(11,211)
Ending balance	$ 0	$ 16,011

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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