Income Taxes (Tables)

9 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Difference Between US Federal Statutory Income Tax Rate and Effective Income Tax Rate

The difference between our U.S. federal statutory income tax rate and our effective income tax rate is summarized below:

	Three Months Ended June 30, 2018		Nine Months Ended June 30, 2018
U.S. federal statutory income tax rate	24.5	%	24.5	%
State income taxes, net of federal tax benefit	2.9		3.1
Effect of foreign operations	1.0		1.0
Deferred tax revaluation, including adoption of income tax method changes	(3.5)		(14.6)
Deemed repatriation tax	—		4.6
Other, net	0.2		0.2
Effective tax rate	25.1	%	18.8	%