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Income Taxes (Tables)
 9 Months Ended
Jun. 30, 2020
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 June 30,
 
Nine Months Ended June 30,
 
 
2020
 
2019
 
2020
 
2019
Income taxes computed at the federal statutory rate
 
21.0
 %
 
21.0
 %
 
21.0
 %
 
21.0
 %
State taxes, net of federal benefit
 
3.6
 %
 
2.8
 %
 
3.7
 %
 
3.0
 %
Permanent items
 
0.1
 %
 
0.6
 %
 
0.1
 %
 
0.1
 %
Net income attributable to noncontrolling interest
 
(10.2
)%
 
(10.1
)%
 
(10.1
)%
 
(10.1
)%
Total
 
14.5
 %
 
14.3
 %
 
14.7
 %
 
14.0
 %