Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Effective income tax rate [Abstract]
Effective tax rate as reported	23.70%	68.60%
U.K. [Member]
Effective income tax rate [Abstract]
Non-cash deferred tax expense from re-measurement of net deferred tax liabilities	$ 20.7
U.K. [Member] | Minimum [Member]
Effective income tax rate [Abstract]
Foreign statutory tax rate	19.00%
U.K. [Member] | Maximum [Member]
Effective income tax rate [Abstract]
Foreign statutory tax rate	25.00%