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Income Taxes Rate Reconciliation (Tables)
3 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
The reconciliation between the U.S. federal statutory income tax rate and the effective income tax rate is presented below.

 Three months ended
December 31,
20222021
U.S. federal statutory income tax rate21.0 %21.0 %
Adjustments to reconcile to the effective tax rate:
State income taxes, net of federal benefit3.4 3.9 
Excess tax benefits related to stock-based compensation0.7 (1.0)
Tax credits(1.6)(1.2)
Global Intangible Low-Taxed Income0.8 0.3 
Foreign income tax rate differential(1.6)(0.7)
Nondeductible compensation0.5 — 
Valuation allowances(0.2)1.4 
Other0.5 0.5 
Effective income tax rate23.5 %24.2 %