Short-Term Investments and Funds Held for Customers - Additional Information (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2025 USD ($) investment_position	Mar. 31, 2024 USD ($)	Mar. 31, 2025 USD ($) investment_position	Mar. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Accrued interest receivable	$ 7,700,000		$ 7,700,000		$ 4,900,000
Amortized cost	1,621,645,000		1,621,645,000		1,516,348,000
Fair value	$ 1,627,587,000		$ 1,627,587,000		1,515,330,000
Number of unrealized loss investment positions | investment_position	160		160
Number of investment positions | investment_position	800		800
Short-term investments realized gains or losses	$ 0	$ 0	$ 0	$ 0
Accrued Interest Receivable
Debt Securities, Available-for-Sale [Line Items]
Amortized cost	13,800,000		13,800,000		6,800,000
Fair value	$ 13,800,000		$ 13,800,000		$ 6,800,000