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Income Taxes (Tables)
 3 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule of reconciliation of the statutory income tax rate to the effective tax rate
A reconciliation of the statutory income tax rate to the effective tax rate is as follows:
 
 
Three Months Ended December 31,
 
 
2017
 
2016
Income taxes computed at the federal statutory rate
 
24.5
 %
 
35.0
 %
State taxes, net of federal benefit
 
2.5
 %
 
2.5
 %
Tax Cuts and Jobs Act transitional impact (1)
 
9.6
 %
 
—
 %
Permanent items (2)
 
(2.9
)%
 
—
 %
Net income attributable to noncontrolling interest
 
(10.4
)%
 
(16.9
)%
Total
 
23.3
 %
 
20.6
 %


(1)
Transitional impact is the $19,817 adjustment to our deferred tax asset due to the reduction in our corporate income tax rate under the Tax Act.

(2)
Permanent items include the $24,710 reduction in our liability related to the tax receivable agreement with ABP Trust as discussed in Note 7.