Segment Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	$ 129,402	$ 121,206	$ 363,444	$ 356,480
Adjustment for:
Intangible amortization			25,385	21,601
Corporate and other expense, net	21,502	21,824	63,383	60,983
Operating income	129,402	121,206	363,444	356,480
Interest expense (income), net	853	265	(710)	3,502
Other expense (income), net	1,267	(1,724)	(1,769)	(4,217)
Income before income taxes	127,282	122,665	365,923	357,195
Reportable Segments Total
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	161,122	149,981	452,212	439,064
Adjustment for:
Operating income	161,122	149,981	452,212	439,064
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	107,164	100,470	294,576	288,791
Adjustment for:
Intangible amortization	779	816	2,393	2,415
Operating income	107,164	100,470	294,576	288,791
Engineered Solutions Segment [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating income for reportable segments	53,958	49,511	157,636	150,273
Adjustment for:
Intangible amortization	9,439	6,135	22,992	19,186
Operating income	$ 53,958	$ 49,511	$ 157,636	$ 150,273