Annual report pursuant to Section 13 and 15(d)

Fee Revenue - Additional Information (Details 1)

v3.22.2
Fee Revenue - Additional Information (Details 1)
$ in Millions
 12 Months Ended
Apr. 30, 2022
USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue recognized, remaining performance obligation $ 1,034.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-05-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue recognized, remaining performance obligation $ 541.2
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-05-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue recognized, remaining performance obligation $ 295.6
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-05-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue recognized, remaining performance obligation $ 128.1
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-03-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue recognized, remaining performance obligation $ 70.0
Revenue, remaining performance obligation, expected timing of satisfaction, period
Revenue, remaining performance obligation, expected timing of satisfaction, explanation 2026 and thereafter