v3.26.1
INCOME TAXES - Effective Income Tax Rate Reconciliation Prior Period (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Income Tax Disclosure [Abstract]      
Tax Jurisdiction of Domicile [Extensible Enumeration] UNITED STATES UNITED STATES UNITED STATES
Income tax reconciliation      
Provision for income taxes at U.S. statutory rate $ 303.6 $ 222.3 $ 184.2
Increase (decrease) in Provision for income taxes from:      
State taxes, net of federal tax 36.8 24.9 20.5
Foreign rate differential 4.1 2.3 5.8
Valuation allowances   0.3 0.5
Stock-based compensation - excess tax benefits (“ETB”)   (20.5) (12.9)
Tax Credits and Foreign-Derived Intangible Income Deduction (“FDII”)   (10.4) (21.2)
Other   0.4 2.2
Total Provision for income taxes $ 321.6 $ 219.2 $ 179.3
Tax rate reconciliation (percent)      
Provision for income taxes at U.S. statutory rate 21.00% 21.00% 21.00%
Increase (decrease) in Provision for income taxes from:      
State taxes, net of federal tax 2.50% 2.40% 2.30%
Foreign rate differential 0.30% 0.20% 0.70%
Valuation allowances   0.00% 0.10%
Stock-based compensation - excess tax benefits (“ETB”)   (1.90%) (1.50%)
Tax Credits and Foreign-Derived Intangible Income Deduction (“FDII”)   (1.00%) (2.40%)
Other   0.00% 0.30%
Total Provision for income taxes 22.20% 20.70% 20.40%