Income Taxes (Tables)

9 Months Ended

May 31, 2020

Income Tax Disclosure [Abstract]

Summary of U.S. Federal Statutory Income Tax Rate Compared to Actual Income Tax Expense

The U.S. federal statutory income tax rate and the Company's effective income tax rate are as follows:

	Three months ended				Nine months ended
	May 31, 2020		May 31, 2019		May 31, 2020		May 31, 2019
U.S. federal statutory income tax rate	21.0	%	21.0	%	21.0	%	21.0	%
Effective income tax rate	465.0	%	47.0	%	108.3	%	32.4	%