Employee Benefit Plans - Weighted Average Fair Value of Restricted Stock Plan Issuances (Details) - $ / shares	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Performance-based restricted shares/units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value (in dollars per share)	$ 299.31	$ 283.84	$ 262.56
Time-based restricted shares/units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value (in dollars per share)	$ 301.02	$ 277.10	$ 255.29