Income Taxes (Tables)

9 Months Ended

Jan. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Rate Reconciliation

Rate reconciliations between the statutory U.S. federal corporate income rates and the effective tax rates for continuing operations are below:

Nine months ended January 31,	2019		2018
U.S. statutory tax rate	21.0	%	21.0	%
Change in tax rate resulting from:
State income taxes, net of federal income tax benefit	2.1	%	2.2	%
Earnings taxed in foreign jurisdictions	(3.2	)%	(2.3	)%
Permanent differences	0.3	%	0.3	%
Uncertain tax positions	4.3	%	6.0	%
Remeasurement of deferred tax assets and liabilities	(0.1	)%	2.4	%
Tax benefit due to effective date of statutory rate change	—		(16.4	)%
One-time transition tax	—		(2.4	)%
Other	1.0	%	(3.1	)%
Effective tax rate	25.4	%	7.7	%