Revenue Recognition Revenue Recognition (Details 1)	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
General Industry [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	36.00%	36.30%	35.80%	36.10%
Industrial Machinery [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	14.20%	16.00%	14.10%	15.80%
Food [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	10.10%	9.40%	10.20%	9.50%
Metals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	9.90%	9.50%	9.90%	9.70%
Forest Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	9.00%	8.80%	9.40%	8.80%
Chem/Petrochem [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	6.90%	6.40%	6.90%	6.30%
Cement & Aggregate [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	6.00%	5.70%	5.60%	5.70%
Oil & Gas [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	4.20%	4.60%	4.40%	4.70%
Transportation [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	3.70%	3.30%	3.70%	3.40%
Total
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	100.00%	100.00%	100.00%	100.00%
Service Center Based Distribution Segment [Member] | General Industry [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	34.50%	33.40%	34.70%	33.70%
Service Center Based Distribution Segment [Member] | Industrial Machinery [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	9.00%	10.30%	8.90%	10.20%
Service Center Based Distribution Segment [Member] | Food [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	13.70%	13.10%	13.70%	12.90%
Service Center Based Distribution Segment [Member] | Metals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	10.90%	10.60%	10.80%	10.70%
Service Center Based Distribution Segment [Member] | Forest Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	12.00%	11.90%	12.20%	11.90%
Service Center Based Distribution Segment [Member] | Chem/Petrochem [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	2.70%	3.00%	2.70%	2.90%
Service Center Based Distribution Segment [Member] | Cement & Aggregate [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	8.20%	7.90%	7.60%	7.80%
Service Center Based Distribution Segment [Member] | Oil & Gas [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	5.40%	6.30%	5.70%	6.30%
Service Center Based Distribution Segment [Member] | Transportation [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	3.60%	3.50%	3.70%	3.60%
Service Center Based Distribution Segment [Member] | Total
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	100.00%	100.00%	100.00%	100.00%
Engineered Solutions Segment [Member] | General Industry [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	39.60%	42.30%	38.50%	41.00%
Engineered Solutions Segment [Member] | Industrial Machinery [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	25.00%	27.40%	25.10%	27.30%
Engineered Solutions Segment [Member] | Food [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	2.50%	2.20%	2.70%	2.50%
Engineered Solutions Segment [Member] | Metals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	7.60%	7.40%	7.90%	7.60%
Engineered Solutions Segment [Member] | Forest Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	2.70%	2.40%	3.30%	2.50%
Engineered Solutions Segment [Member] | Chem/Petrochem [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	15.70%	12.90%	15.90%	13.40%
Engineered Solutions Segment [Member] | Cement & Aggregate [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	1.40%	1.30%	1.30%	1.40%
Engineered Solutions Segment [Member] | Oil & Gas [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	1.70%	1.20%	1.60%	1.30%
Engineered Solutions Segment [Member] | Transportation [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	3.80%	2.90%	3.70%	3.00%
Engineered Solutions Segment [Member] | Total
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Customer Industry, Percent	100.00%	100.00%	100.00%	100.00%