Income Taxes (Tables)

6 Months Ended

Feb. 29, 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				Six months ended
	February 29, 2020		February 28, 2019		February 29, 2020		February 28, 2019
U.S. federal statutory income tax rate	21.0	%	21.0	%	21.0	%	21.0	%
Effective income tax rate	108.9	%	33.0	%	71.0	%	27.9	%