Revenue Recognition Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 1,073,001	$ 1,077,153	$ 2,171,945	$ 2,172,341
UNITED STATES
Disaggregation of Revenue [Line Items]
Net sales	929,549	944,652	1,886,782	1,904,010
CANADA
Disaggregation of Revenue [Line Items]
Net sales	77,777	77,170	149,253	152,470
Other Countries [Member]
Disaggregation of Revenue [Line Items]
Net sales	65,675	55,331	135,910	115,861
Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	723,827	729,273	1,473,566	1,475,806
Service Center Based Distribution Segment [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Net sales	599,801	602,483	1,225,483	1,219,745
Service Center Based Distribution Segment [Member] | CANADA
Disaggregation of Revenue [Line Items]
Net sales	77,777	77,170	149,253	152,470
Service Center Based Distribution Segment [Member] | Other Countries [Member]
Disaggregation of Revenue [Line Items]
Net sales	46,249	49,620	98,830	103,591
Engineered Solutions Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	349,174	347,880	698,379	696,535
Engineered Solutions Segment [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Net sales	329,748	342,169	661,299	684,265
Engineered Solutions Segment [Member] | CANADA
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Engineered Solutions Segment [Member] | Other Countries [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 19,426	$ 5,711	$ 37,080	$ 12,270