Revenue - Additional Information (Detail1)	Apr. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-05-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue expected to be recognized	52.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-30
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue expected to be recognized	24.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months