Income Taxes (Income Tax Provisions Computed using Statutory U.S. Federal Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income tax at statutory rate	$ 62,688	$ 34,427	$ 23,527
Lower rates on foreign operations	(10,999)	(11,419)	(11,668)
State income taxes	10,263	4,767	2,656
Research and development tax credits	(1,908)	(1,589)	(1,862)
Change in valuation allowance	0	(621)	(9,769)
Reduction in state loss carryforwards	0	0	2,340
Permanent (taxable) non-deductible Permanent (taxable) non-deductible items	(2,286)	(904)	785
Limitations on executive compensation	5,812	2,987	908
Foreign tax provisions under GILTI	6,110	4,908	3,569
Change in unrecognized tax benefits	(490)	(6,849)	791
Other	(3,353)	517	(994)
Provision for income taxes	$ 65,837	$ 26,224	$ 10,283
Income tax at statutory rate	21.00%	21.00%	21.00%
Lower rates on foreign operations	(3.70%)	(7.00%)	(10.40%)
State income taxes	3.40%	2.90%	2.40%
Research and development tax credits	(0.60%)	(1.00%)	(1.70%)
Change in valuation allowance	0.00%	(0.40%)	(8.70%)
Reduction in state loss carryforwards	0.00%	0.00%	2.10%
Permanent non-deductible items	(0.80%)	(0.60%)	0.70%
Limitations on executive compensation	1.90%	1.80%	0.80%
Foreign tax provisions under GILTI	2.00%	3.00%	3.20%
Change in unrecognized tax benefits	(0.20%)	(4.20%)	0.70%
Other	(1.10%)	0.30%	(0.90%)
Provision for income taxes	22.10%	16.00%	9.20%