Income Taxes - Reconciliation of unrecognized tax benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance July 1	$ 113,503	$ 90,669	$ 100,759
Additions for tax positions related to current year	6,479	9,389	7,039
Additions for tax positions of prior years	0	6,171	1,415
Additions for acquisitions	4,195	25,957	0
Reductions for tax positions of prior years	(4,869)	(3,063)	(140)
Reductions for settlements	0	(6,923)	(3,127)
Reductions for expiration of statute of limitations	(15,019)	(11,199)	(6,647)
Effect of foreign currency translation - increase		2,502
Effect of foreign currency translation - decrease	(2,185)		(8,630)
Balance June 30	$ 102,104	$ 113,503	$ 90,669