Short-Term Investments and Funds Held for Customers - Schedule of Gross Unrealized Losses And Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Jun. 30, 2025
Short-term investments:
Fair value, less than 12 months	$ 459,201	$ 379,608
Unrealized losses, less than 12 months	(1,532)	(347)
Fair value, 12 months or longer	340	0
Unrealized losses, 12 months or longer	(5)	0
Fair value	459,541	379,608
Unrealized losses	(1,537)	(347)
Funds held for customers:
Fair value, less than 12 months	447,195	100,353
Unrealized losses, less than 12 months	(2,056)	(217)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	447,195	100,353
Unrealized losses	(2,056)	(217)
Corporate bonds
Short-term investments:
Fair value, less than 12 months	116,779	209,648
Unrealized losses, less than 12 months	(96)	(274)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	116,779	209,648
Unrealized losses	(96)	(274)
Funds held for customers:
Fair value, less than 12 months	15,170	12,867
Unrealized losses, less than 12 months	(18)	(1)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	15,170	12,867
Unrealized losses	(18)	(1)
U.S. treasury securities
Short-term investments:
Fair value, less than 12 months	309,232	139,598
Unrealized losses, less than 12 months	(1,391)	(58)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	309,232	139,598
Unrealized losses	(1,391)	(58)
Funds held for customers:
Fair value, less than 12 months	412,597	82,910
Unrealized losses, less than 12 months	(2,013)	(216)
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	412,597	82,910
Unrealized losses	(2,013)	(216)
Asset-backed securities
Short-term investments:
Fair value, less than 12 months	33,190	30,362
Unrealized losses, less than 12 months	(45)	(15)
Fair value, 12 months or longer	340	0
Unrealized losses, 12 months or longer	(5)	0
Fair value	33,530	30,362
Unrealized losses	(50)	(15)
Funds held for customers:
Fair value, less than 12 months	7,705	4,576
Unrealized losses, less than 12 months	(14)	0
Fair value, 12 months or longer	0	0
Unrealized losses, 12 months or longer	0	0
Fair value	7,705	4,576
Unrealized losses	(14)	$ 0
Municipal bonds
Funds held for customers:
Fair value, less than 12 months	11,723
Unrealized losses, less than 12 months	(11)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair value	11,723
Unrealized losses	$ (11)