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Income Taxes
 6 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES
Three Months Ended 
 December 31,		Six Months Ended 
 December 31,
2023202220232022
(in millions)
Provision for income taxes$17.4 $14.4 $39.4 $19.3 
Effective tax rate19.9 %20.0 %19.7 %15.2 %
Excess tax benefits$1.2 $0.5 $6.2 $7.2 

The decrease in the effective tax rate for the three months ended December 31, 2023 was driven primarily by a higher excess tax benefit related to equity compensation, relative to pre-tax income as compared to the prior year period.
The increase in the effective tax rate for the six months ended December 31, 2023 was driven by lower discrete tax benefits including a lower excess tax benefit related to equity compensation, relative to pre-tax income as compared to the prior year period.