CONDENSED STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income per the condensed statements of consolidated income	$ 100,807	$ 92,063
Other comprehensive loss, before tax:
Foreign currency translation adjustments	809	(2,266)
Post-employment benefits:
Reclassification of net actuarial losses (gains) and prior service cost into other income, net and included in net periodic pension costs	4	(5)
Unrealized gain (loss) on cash flow hedge	188	(4,159)
Reclassification of interest from cash flow hedge into interest income, net	(3,734)	(4,691)
Total other comprehensive loss, before tax	(2,733)	(11,121)
Income tax benefit related to items of other comprehensive loss	(844)	(2,179)
Other comprehensive loss, net of tax	(1,889)	(8,942)
Comprehensive income, net of tax	$ 98,918	$ 83,121