Segment Information (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	$ 495,823	$ 473,151	$ 357,858
Adjustments for:
Intangible amortization	28,923	30,805	31,879
Operating income	495,823	473,151	357,858
Interest expense, net	2,831	21,639	26,263
Other (income) expense, net	(5,138)	1,701	1,805
Income before income taxes	498,130	449,811	329,790
Reportable Segments
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	607,026	576,843	458,525
Adjustments for:
Operating income	607,026	576,843	458,525
Service Center Based Distribution Segment [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	400,182	373,439	301,881
Adjustments for:
Intangible amortization	3,188	2,857	3,435
Operating income	400,182	373,439	301,881
Engineered Solutions Segment
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	206,844	203,404	156,644
Adjustments for:
Intangible amortization	25,735	27,948	28,444
Operating income	206,844	203,404	156,644
Corporate and Other [Member]
Adjustments for:
Corporate and other expense, net	$ 82,280	$ 72,887	$ 68,788